"Pseudo-MPEC" for JWST Booster = 2021-130B = NORAD 50464

Created 2022 Feb 5 2:16:31 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

You can click here for the initial pseudo-MPEC for JWST itself, or click here for the pseudo-MPEC based on more recent observations. You can also click here to generate custom ephemerides for your site.

It looks as if this booster had a small velocity change, of around 2 m/s, sometime around 0:00 UTC on 26 December, and then another small change about a day and a half later. Jonathan McDowell, upon whom I usually lean for questions of this ilk, tells me the object was deliberately put into a "disposal" heliocentric orbit (to keep it from running into anything in Earth orbit), but that if any fuel got left over, it could vent later on.

With Centaurs, Jonathan says the leftover liquid oxygen and liquid hydrogen are vented separately (makes sense; venting them simultaneously in the presence of any live wires could be... exciting). But you do want to get rid of them; for boosters in LEO, you could end up with a lot of bits of debris if they eventually blew up. This isn't a Centaur, but something similar is probably going on.

It's likely that astrometric data will continue to come in until late February 2022, when the object drops to around magnitude 21 and is roughly 0.025 AU (about ten times further than the moon) from us. After that, we'll see it next in mid-2047, when it will reach magnitude 20 or so, and the next generation of asteroid surveys will find it. Basically, the booster will go around the sun 24.5 times between now and then, and the Earth will go around the sun 25.5 times. So we will "gain a lap" and catch back up with the booster.

After that, it'll do the same thing for many millennia, coming in for a close-ish flyby every couple of decades. Eventually, a flyby will be quite close and either hit the moon or the earth (harmlessly; it's big as boosters go, but it's not that big.)

 
 Astrometry: 
     JWST-2   C2021 12 25.77407 04 47 21.647-04 27 26.68        x11.6 G      C95
     WEBB006  C2021 12 25.77948 04 42 24.72 -05 11 49.2         x11.8 Rq     A91
     WEBB006  C2021 12 25.78143 04 42 40.47 -05 10 14.4         x11.4 Rq     A91
     WEBB006  C2021 12 25.78330 04 42 55.63 -05 08 43.6         x11.4 Rq     A91
     JWST-2   C2021 12 25.78540304 50 48.463-03 56 51.12        x11.7 GV     Z84
     JWST-2   C2021 12 25.78593304 50 51.951-03 56 34.21        x13.5 GV     Z84
     JWST-2   C2021 12 25.78645804 50 55.374-03 56 15.59        x11.6 GV     Z84
     JWST-2   C2021 12 25.78698904 50 58.902-03 55 57.90        x12.0 GV     Z84
     JWST-2   C2021 12 25.78751504 51 02.260-03 55 40.69        x12.2 GV     Z84
     JWSTBOO  C2021 12 25.83626304 49 45.18 -03 54 40.3         x12.5 GV     073
     JWSTBOO  C2021 12 25.83807804 49 53.41 -03 53 42.5         x12.3 GV     073
     JWSTBOO  C2021 12 25.83911804 49 57.94 -03 53 12.8         x12.3 GV     073
     JWSTBOO  C2021 12 25.87000304 54 59.63 -03 41 29.3         x      V     204
     JWSTBOO  C2021 12 25.87037304 55 01.00 -03 41 19.7         x      V     204
     JWSTBOO  C2021 12 25.87082404 55 02.69 -03 41 07.9         x      V     204
     JWSTBOO  C2021 12 25.87131104 55 04.45 -03 40 55.5         x      V     204
     JWSTBOO  C2021 12 25.87176204 55 06.14 -03 40 43.5         x12.4 GV     204
     JWSTBOO  C2021 12 25.87222504 55 07.84 -03 40 31.7         x      V     204
     JWSTBOO  C2021 12 25.92880004 55 29.50 -03 15 00.0         x12.3 GV     073
     JWSTBOO  C2021 12 25.93117504 55 37.13 -03 14 09.4         x12.4 GV     073
     JWSTBOO  C2021 12 25.93310704 55 43.36 -03 13 28.7         x12.3 GV     073
     JWSTBOO  C2021 12 25.93474304 55 48.66 -03 12 54.1         x12.3 GV     073
     JWSTBOO  C2021 12 25.93578404 55 52.00 -03 12 32.3         x12.3 GV     073
     JWSTBOO  C2021 12 25.93653704 55 54.42 -03 12 16.6         x12.4 GV     073
     JWSTBOO  C2021 12 26.01094005 01 43.36 -02 53 15.1         x      V     204
     JWSTBOO  C2021 12 26.01232905 01 46.92 -02 52 52.3         x      V     204
     JWSTBOO  C2021 12 26.01371805 01 50.47 -02 52 29.8         x12.8 GV     204
     JWSTBOO  C2021 12 26.01649605 01 57.57 -02 51 45.0         x      V     204
     JWST2   KC2021 12 26.02348205 09 43.97 +00 00 56.8         x12.6 GX     Y00
     JWST2   KC2021 12 26.02441005 09 44.55 +00 00 56.8         x13.1 GX     Y00
     JWST2   KC2021 12 26.02533905 09 45.15 +00 00 57.1         x13.0 GX     Y00
     JWST2   KC2021 12 26.02627005 09 45.75 +00 00 57.2         x13.0 GX     Y00
     JWST2   KC2021 12 26.02719905 09 46.40 +00 00 56.7         x13.0 GX     Y00
     JWST2   KC2021 12 26.02812805 09 46.90 +00 00 57.2         x13.0 GX     Y00
     JWST2   KC2021 12 26.02905705 09 47.47 +00 00 57.3         x13.0 GX     Y00
     JWST2   KC2021 12 26.02998805 09 48.13 +00 00 56.9         x13.0 GX     Y00
     JWST2   KC2021 12 26.03091905 09 48.70 +00 00 57.2         x13.0 GX     Y00
     JWST2   KC2021 12 26.03185105 09 49.19 +00 00 57.0         x13.0 GX     Y00
     JWSTBOO KC2021 12 26.81538 05 38 46.44 -01 19 35.6         x14.9 VZ     K19
     JWSTBOO KC2021 12 26.81804 05 38 46.82 -01 19 28.1         x14.2 VZ     K19
     JWSTBOO KC2021 12 26.82068 05 38 47.14 -01 19 20.6         x14.2 VZ     K19
     JWSTBOO KC2021 12 26.83977 05 38 48.22 -01 18 29.4         x14.5 VZ     K19
     JWSTBOO KC2021 12 26.84231 05 38 48.21 -01 18 21.6         x14.4 VZ     K19
     JWSTBOO KC2021 12 26.84486 05 38 48.13 -01 18 14.9         x14.2 VZ     K19
     JWST2    C2021 12 26.86059005 38 46.77 -01 17 28.1         x14.2 GX     C95
     JWST2    C2021 12 26.86182905 38 46.63 -01 17 25.0         x14.0 GX     C95
     JWST2    C2021 12 26.86304405 38 46.46 -01 17 21.7         x13.9 GX     C95
     JWST2    C2021 12 26.86427105 38 46.30 -01 17 18.2         x13.7 GX     C95
     JWST2    C2021 12 26.86549805 38 46.10 -01 17 15.4         x13.7 GX     C95
     JWSTBOO KC2021 12 26.86607 05 38 46.11 -01 17 17.8         x14.4 VZ     K19
     JWST2    C2021 12 26.86672505 38 45.92 -01 17 11.8         x13.7 GX     C95
     JWST2    C2021 12 26.86795105 38 45.73 -01 17 08.6         x13.9 GX     C95
     JWSTBOO KC2021 12 26.86870 05 38 45.70 -01 17 10.7         x14.2 VZ     K19
     JWST2    C2021 12 26.86916705 38 45.52 -01 17 05.2         x13.7 GX     C95
     JWST2    C2021 12 26.87038205 38 45.34 -01 17 02.0         x13.6 GX     C95
     JWSTBOO KC2021 12 26.87124 05 38 45.26 -01 17 03.6         x14.5 VZ     K19
     JWST2    C2021 12 26.87160905 38 45.13 -01 16 58.9         x13.7 GX     C95
     JWST2    C2021 12 26.87282405 38 44.92 -01 16 55.6         x13.7 GX     C95
     JWST2    C2021 12 26.87403905 38 44.64 -01 16 52.2         x13.9 GX     C95
     JWST02   C2021 12 27.19907405 44 30.64 -00 54 01.4         x15.1 VZ     U72
     JWST02   C2021 12 27.21870005 44 22.67 -00 53 26.8         x15.0 VZ     U72
     JWST02   C2021 12 27.24222205 44 11.12 -00 52 47.8         x14.7 VZ     U72
     JWST02   C2021 12 27.26185205 44 00.40 -00 52 13.7         x15.1 VZ     U72
     JWBOO01 KC2021 12 27.88947 05 51 27.42 -00 41 10.5         x13.9 GX     J57
     JWBOO01 KC2021 12 27.89248 05 51 26.23 -00 41 07.0         x13.9 GX     J57
     JWBOO01 KC2021 12 27.89554 05 51 25.00 -00 41 03.6         x14.4 GX     J57
     JWST2    C2021 12 27.93439205 51 13.095-00 38 17.79         15.9 GV     Z84
     JWST2    C2021 12 27.93515805 51 12.664-00 38 16.89         15.7 GV     Z84
     JWST2    C2021 12 27.93592605 51 12.185-00 38 15.84         15.9 GV     Z84
     JWST2    C2021 12 27.93669405 51 11.826-00 38 15.04         15.9 GV     Z84
     JWST2    C2021 12 27.93746005 51 11.448-00 38 14.42         15.3 GV     Z84
     JWST2    C2021 12 27.93822905 51 11.017-00 38 13.33         15.5 GV     Z84
     JWST2    C2021 12 27.93899905 51 10.553-00 38 12.70         15.4 GV     Z84
     JWST2    C2021 12 27.93976605 51 10.202-00 38 11.87         15.7 GV     Z84
     JWST2    C2021 12 27.94053205 51 09.768-00 38 10.88         15.5 GV     Z84
     JWST2    C2021 12 27.94130005 51 09.295-00 38 09.79         15.5 GV     Z84
     JWST2    C2021 12 27.94206605 51 08.873-00 38 09.28         15.7 GV     Z84
     JWST2    C2021 12 27.94283305 51 08.424-00 38 08.28         15.8 GV     Z84
50464         C2021 12 27.94564 05 49 02.71 -00 42 28.0          15.2 GV     D05
50464         C2021 12 27.94601 05 49 02.57 -00 42 27.1          15.2 GV     D05
50464         C2021 12 27.94637 05 49 02.46 -00 42 26.6          15.2 GV     D05
50464         C2021 12 27.94674 05 49 02.37 -00 42 26.2          15.1 GV     D05
50464         C2021 12 27.94856 05 49 01.82 -00 42 23.9          15.1 GV     D05
50464         C2021 12 27.94894 05 49 01.70 -00 42 23.3          15.2 GV     D05
50464         C2021 12 27.94929 05 49 01.59 -00 42 22.8          15.2 GV     D05
50464         C2021 12 27.94966 05 49 01.54 -00 42 22.3          15.1 GV     D05
50464         C2021 12 27.95003 05 49 01.39 -00 42 21.8          15.2 GV     D05
50464         C2021 12 27.95113 05 49 01.08 -00 42 20.4          15.2 GV     D05
50464         C2021 12 27.95186 05 49 00.87 -00 42 19.4          15.1 GV     D05
50464         C2021 12 27.95259 05 49 00.71 -00 42 19.0          15.1 GV     D05
50464         C2021 12 27.95405 05 49 00.27 -00 42 16.5          15.1 GV     D05
50464         C2021 12 27.95442 05 49 00.19 -00 42 16.0          15.1 GV     D05
50464         C2021 12 27.95479 05 49 00.10 -00 42 15.7          15.1 GV     D05
50464         C2021 12 27.95515 05 48 59.96 -00 42 15.1          15.2 GV     D05
50464         C2021 12 27.95552 05 48 59.88 -00 42 14.6          15.1 GV     D05
50464         C2021 12 27.95589 05 48 59.80 -00 42 14.1          15.2 GV     D05
50464         C2021 12 27.95662 05 48 59.60 -00 42 13.1          15.1 GV     D05
50464         C2021 12 27.95699 05 48 59.48 -00 42 12.5          15.1 GV     D05
50464         C2021 12 27.95735 05 48 59.40 -00 42 12.1          15.1 GV     D05
50464         C2021 12 27.95772 05 48 59.30 -00 42 11.7          15.1 GV     D05
50464         C2021 12 27.95808 05 48 59.21 -00 42 11.1          15.1 GV     D05
50464         C2021 12 27.95845 05 48 59.11 -00 42 10.7          15.1 GV     D05
50464         C2021 12 27.95882 05 48 59.02 -00 42 10.2          15.1 GV     D05
     JWSTB01 KCK211228:012541   087.66677   -00.48385            14.9 GV     G40
     JWSTB01 KCK211228:013003   087.65872   -00.48300            14.9 GV     G40
     JWSTB01 KCK211228:013457   087.64970   -00.48199            14.9 GV     G40
     JWST2    C2021 12 28.81980505 58 39.058-00 23 40.45         15.6 GV     Z84
     JWST2    C2021 12 28.82210105 58 38.773-00 23 38.83         15.6 GV     Z84
     JWST2    C2021 12 28.82363805 58 38.550-00 23 37.69         15.6 GV     Z84
     JWST2    C2021 12 28.82593805 58 38.201-00 23 36.07         15.6 GV     Z84
     JWST2    C2021 12 28.82823705 58 37.845-00 23 34.42         15.6 GV     Z84
2021-130B     C2021 12 28.91284 05 58 17.45 -00 23 08.3          15.4 G      Z10
2021-130B     C2021 12 28.91517 05 58 16.43 -00 23 06.6          15.3 G      Z10
2021-130B     C2021 12 28.91749 05 58 15.43 -00 23 04.9          15.4 G      Z10
2021-130B     C2021 12 28.92058 05 58 14.04 -00 23 02.6          15.4 G      Z10
2021-130B     C2021 12 28.92367 05 58 12.65 -00 23 00.4          15.4 G      Z10
     JWSTBO  KC2021 12 29.06016205 58 37.77 +00 20 10.2          16.5 VX     Y00
     JWSTBO  KC2021 12 29.06541905 58 34.24 +00 20 11.7          15.8 VX     Y00
     JWSTBO  KC2021 12 29.07068605 58 30.69 +00 20 13.8          15.8 VX     Y00
     JWSTBO  KC2021 12 29.07439805 58 28.18 +00 20 14.6          15.6 VX     Y00
     JWSTBO  KC2021 12 29.07809205 58 25.66 +00 20 16.1          15.7 VX     Y00
     JWSTB01 KCK211230:022000   090.39458   -00.07434            15.7 GV     G40
     JWSTB01 KCK211230:023501   090.37402   -00.07278            15.8 GV     G40
     JWSTB01 KCK211230:025501   090.34852   -00.07060            15.3 GV     G40
     JWSTBOO KC2021 12 30.84509 06 06 07.01 -00 04 54.2          16.9 VZ     K19
     JWSTBOO KC2021 12 30.85250 06 06 04.98 -00 04 50.2          16.6 VZ     K19
     JWSTBOO KC2021 12 30.85985 06 06 02.85 -00 04 46.0          16.1 VZ     K19
     JWST002  C2021 12 30.99757 06 05 06.29 -00 04 15.7                V     204
     JWST002  C2021 12 31.00001 06 05 05.40 -00 04 14.3                V     204
     JWST002  C2021 12 31.00284 06 05 04.37 -00 04 12.8                V     204
     JWST002  C2021 12 31.00569 06 05 03.36 -00 04 11.2                V     204
     JWST002  C2021 12 31.00893 06 05 02.21 -00 04 09.4          16.2 GV     204
2021-130B     CK211231:215217   092.10921   +00.03671            16.4 GV     970
2021-130B     CK211231:215811   092.10439   +00.03735            16.5 GV     970
2021-130B     CK211231:221001   092.09469   +00.03859            16.6 GV     970
2021-130B    KCK220102:193838   093.18862   +00.32463            16.8 GV     970
2021-130B    KCK220102:194431   093.18669   +00.32522            18.8 GV     970
     JWST2    C2022 01 02.86494506 12 52.209+00 24 23.04         16.8 GV     Z84
     JWST2    C2022 01 02.86801206 12 51.388+00 24 24.69         16.9 GV     Z84
     JWST2    C2022 01 02.87031306 12 50.758+00 24 25.95         16.9 GV     Z84
     JWST2    C2022 01 02.87338006 12 49.900+00 24 27.66         16.9 GV     Z84
     JWSTBOO  C2022 01 02.89440606 12 33.60 +00 20 24.3          16.7 Vq     J69
     JWSTBOO  C2022 01 02.89653506 12 33.05 +00 20 24.9          16.6 Vq     J69
     JWSTBOO  C2022 01 02.89866506 12 32.52 +00 20 26.2          16.6 Vq     J69
     JWSTBOO  C2022 01 02.90718306 12 30.47 +00 20 30.9          16.7 Vq     J69
     JWSTBOO  C2022 01 02.90931206 12 29.94 +00 20 31.7          16.6 Vq     J69
     JWSTBOO  C2022 01 02.91144206 12 29.38 +00 20 33.1          16.4 Vq     J69
2021-130B    KCK220102:22005882 093.11683   +00.34104            16.9 GV     J95
2021-130B    KCK220102:22044240 093.11409   +00.34142            16.8 GV     J95
2021-130B     CK220102:220636   093.10405   +00.34041            17.3 GV     970
2021-130B    KCK220102:22080699 093.11152   +00.34180            16.9 GV     J95
2021-130B     CK220102:221120   093.10049   +00.34090            17.4 GV     970
2021-130B    KCK220102:22113671 093.10891   +00.34216            17.0 GV     J95
2021-130B    KCK220102:22153213 093.10594   +00.34255            16.9 GV     J95
     JWSTBOO  C2022 01 02.96525206 11 58.82 +00 21 03.0          16.9 GV     G34
     JWSTBOO  C2022 01 02.96841306 11 57.91 +00 21 04.9          16.6 GV     G34
     JWSTBOO  C2022 01 02.96913206 11 57.74 +00 21 04.9          17.2 GV     G34
     JWSTBOO  C2022 01 04.21461 06 14 37.11 +00 37 49.4          17.1 GV     H06
     JWSTBOO  C2022 01 04.21520 06 14 36.80 +00 37 49.2          17.2 GV     H06
     JWSTBOO  C2022 01 04.21578 06 14 36.61 +00 37 50.1          17.1 GV     H06
     JWSTBOO  C2022 01 04.21634 06 14 36.43 +00 37 50.0          17.2 GV     H06
     JWSTBOO  C2022 01 04.21693 06 14 36.20 +00 37 50.6          17.2 GV     H06
     JWSTBOO  C2022 01 04.21751 06 14 35.97 +00 37 50.9          17.3 GV     H06
     JWSTBOO  C2022 01 04.21808 06 14 35.77 +00 37 51.5          17.2 GV     H06
     JWSTBOO  C2022 01 04.21866 06 14 35.54 +00 37 51.0          17.2 GV     H06
     JWSTBOO  C2022 01 04.21924 06 14 35.34 +00 37 51.9          17.4 GV     H06
2021-130B     CK220104:221528   093.88141   +00.65043            17.9 GV     970
2021-130B     CK220104:222349   093.87564   +00.65134            17.2 GV     970
50464         C2022 01 05.31155106 15 29.709+00 47 52.03        x19.3 GU     H06
50464         C2022 01 05.31260406 15 29.367+00 47 53.98        x18.6 GU     H06
50464         C2022 01 05.31364606 15 28.961+00 47 54.10        x19.2 GU     H06
50464         C2022 01 05.31465306 15 28.583+00 47 53.77        x19.1 GU     H06
2021-130B    KCK220105:221648   094.22961   +00.81029            17.3 GV     970
2021-130B    KCK220105:225106   094.20675   +00.81417            17.2 GV     970
2021-130B    KCK220105:225705   094.20271   +00.81484            17.4 GV     970
2021-130B    KCK220105:230306   094.19862   +00.81550            17.4 GV     970
2021-130B    KCK220108:23081288 095.17332   +01.31411            17.7 GV     J95
2021-130B    KCK220108:23103151 095.17197   +01.31431            17.7 GV     J95
2021-130B    KCK220108:23124952 095.17061   +01.31467            17.6 GV     J95
2021-130B    KCK220108:23150478 095.16935   +01.31487            17.5 GV     J95
     booster KCK220112:022655   096.20380   +02.19627            17.8 GV     W88
     booster KCK220112:023343   096.19907   +02.19699            17.7 GV     W88
     booster KCK220112:024230   096.19295   +02.19802            17.4 GV     W88
2021-130B    KCK220112:214557   096.42498   +01.99213            18.8 GV     970
2021-130B    KCK220112:220433   096.41669   +01.99439            19.4 GV     970
     JWSTBOO KC2022 01 13.23543 06 25 58.81 +02 06 40.4          18.0 GV     H06
     JWSTBOO KC2022 01 13.23830 06 25 58.15 +02 06 43.6          18.5 GV     H06
2021-130B    KCK220117:224220   097.87360   +02.88540            18.2 GV     970
2021-130B    KCK220117:230313   097.86573   +02.88798            17.7 GV     970
2021-130B    KCK220120:22215950 098.74356   +03.43147            18.6 GV     J95
2021-130B    KCK220120:22290324 098.74126   +03.43226            18.6 GV     J95
2021-130B    KCK220120:22365652 098.73854   +03.43337            18.5 GV     J95
2021-130B    KCK220120:22451247 098.73569   +03.43433            18.6 GV     J95
2021-130B    KCK220120:22530187 098.73296   +03.43528            18.5 GV     J95
     JWSTBOO KC2022 01 24.26133 06 38 41.21 +04 05 57.1          18.7 GV     U69
     C72K752  C2022 01 25.28289 06 39 38.60 +04 18 42.0          18.8 GV     G96
     C72K752  C2022 01 25.28824 06 39 37.77 +04 18 45.4          18.8 GV     G96
     C72K752  C2022 01 25.29359 06 39 36.98 +04 18 48.8                V     G96
     C72K752  C2022 01 25.29894 06 39 36.18 +04 18 51.9          18.8 GV     G96
2021-130B    KCK220126:215834   100.41513   +04.59469            20.4 GV     970
2021-130B    KCK220126:221031   100.41183   +04.59635            19.1 GV     970
2021-130B    bCK220129:21461963 101.28116   +05.22626            18.1 GV     J95
2021-130B    KCK220129:21594277 101.27820   +05.22828            18.2 GV     J95
2021-130B    KCK220129:22054030 101.27680   +05.22914            18.9 GV     J95
2021-130B    KCK220131:222034   101.88489   +05.66951            17.4 GV     970
2021-130B    KCK220131:223228   101.88238   +05.67174            19.7 GV     970
2021-130B    KCK220204:221845   103.26743   +06.56367            20.6 GV     970
2021-130B    KCK220204:222611   103.26645   +06.56504            19.5 GV     970

Station data:
(073) Bucharest  (N44.413612 E26.096700)  Romania.  Observers A. Sonka, A.
   Nedelcu. Measurer A. Sonka. 0.50-m f/7 reflector + CCD.
(204) Schiaparelli Observatory  (N45.868330 E8.769930)  Italy.
   Observer L. Buzzi. 0.84-m f/3.5 reflector + CCD.
(970) Chelmsford  (N51.744713 E0.495400)  UK/England.  Observer N. James.
   0.28-m f/10 Schmidt-Cassegrain + CCD.
(A91) Hankasalmi Observatory  (N62.254455 E26.599700)  Finland.  Observer
   Arto Oksanen. 0.4m f/8 RC + CCD.
(C95) SATINO Remote Observatory, Haute Provence  (N43.932040 E5.712390)
   France.  Observer J. Jahn. 0.60-m f/3.2 Newtonian reflector + CCD.
(D05) ISON-Terskol Observatory  (N43.274566 E42.500050)  Russia.  Observer
   Agletdinov V. 0.8-m f/2.85 reflector + CCD.
(G34) Oberfrauendorf  (N50.860289 E13.701403)  Germany.  Observer T. Felber.
   0.35-m f/6, 3 Schmidt-Cassegrain + CCD.
(G40) Slooh.com Canary Islands Observatory  (N28.299718 W16.508260)  Canary
   Islands (Spain).  Observer A. J. Evans. 0.43-m f/6.8 Corrected
   Dall-Kirkham + CCD.
(G96) Mt. Lemmon Survey  (N32.442751 W110.788720)  US/Arizona.  Observer K.
   W. Wierzchoś. Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A.
   R. Gibbs, A. D. Grauer, H. Gröller, R. A. Kowalski, S. M. Larson, G. J.
   Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
   Wierzchoś. 1.5-m reflector + 10K CCD.
(H06) RAS Observatory, Mayhill  (N32.903322 W105.528700)  US/New
   Mexico.  Observers P. Monta, B. Young. 0.51m f/4.5 reflector + CCD, 0.25-m
   f/3.4 astrograph + CCD.
(J57) Centro Astronómico Alto Turia, Valencia  (N39.950157 W1.109110)  Spain.
    Observer A. Fornas. Measurers A. Fornas, G. Fornas, E. Arce, V. Mas.
   Reflector 0.4m + CCD.
(J69) North Observatory, Clanfield  (N50.939017 W1.019656)  UK/England.
   Observer D. Briggs. 0.3-m f/5.4 Newtonian reflector + CCD.
(J95) Great Shefford  (N51.474969 W1.447003)  UK/England.  Observer P.
   Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain + CCD.
(K19) PASTIS Observatory, Banon  (N43.999459 E5.647310)  France.  Observer C.
   Demeautis. 0.28-m f/2.2 reflector + CCD.
(U69) iTelescope SRO Observatory, Auberry  (N37.070387 W119.413000)
   US/California.  Observer P. Monta. 0.61m f/6.5 reflector + CCD.
(U72) Tarzana  (N34.183053 W118.540000)  US/California.  Observer R.
   Tolesnikov. 234mm Reflector + CCD.
(W88) Slooh.com Chile Observatory, La Dehesa  (S33.269126 W70.534300)  Chile.
    Observer R. B. Glassey. 0.43-m f/6.8 Corrected Dall- Kirkham + CCD0.35-m
   f/11.0 Schmidt-Cassegrain + CCD.
(Y00) SONEAR Observatory, Oliveira  (S20.715080 W44.784960)  Brazil.
   Observer C. Jacques. 0.28-m f/2.2 astrograph + CCD.
(Z10) PGC, Fregenal de la Sierra  (N38.215820 W6.627650)  Spain.  Observer P.
   Carson. 0.32-m f/8 reflector + CCD.
(Z84) Calar Alto-Schmidt  (N37.223981 W2.548143)  Spain.  Observer M. Micheli.
    Measurers M. Micheli, L. Conversi, E. Petrescu, D. Föhring, E. Schwab,
   D. Koschny. 0.8-m f/3 Schmidt + CCD.

Orbital elements:  JWST Booster = 2021-130B = NORAD 50464
   Perihelion 2021 Dec 12.4443826 +/- 0.00164 TT = 10:39:54.65 (JD 2459560.9443826)
Epoch 2022 Jan 25.0 TT; AMR 0.0012626 +/- 0.000573 m2/kg   Earth MOID: 0.0027
M  41.8875959781 +/- 0.0015         (J2000 ecliptic)          Find_Orb
n   0.9617036447 +/- 1.41e-7        Peri.  194.0083667 +/- 0.0033
a   1.0165027110 +/- 9.93e-8        Node   246.3282839 +/- 0.0016
e   0.027351071 +/- 2.82e-7         Incl.    0.2978183 +/- 0.000012
P   1.02/374.33d           H 27.2   G  0.15   U  2.2
q 0.9887002728 +/- 3.36e-7    Q 1.0443051492 +/- 2.65e-7
138 of 208 observations 2021 Dec. 27-2022 Feb. 4; mean residual 0".416
Residuals in arcseconds: 
211225 C95(15.3- 23.6+)   211227 Z84 .031+ .184+    220102 Z84 .056+ .087-
211225 A91(4.65- 27.3+)   211227 Z84 .168- .416+    220102 J69 .416+ .357+
211225 A91(7.87- 26.4+)   211227 Z84 .839- .186+    220102 J69 .255- .214-
211225 A91(7.28- 26.5+)   211227 Z84 .175+ .160+    220102 J69 .543- .086-
211225 Z84(20.6- 18.7+)   211227 Z84 .050- .295+    220102 J69 .108+ .061-
211225 Z84(20.7- 17.8+)   211227 Z84 .829- .527+    220102 J69 .186+ .427-
211225 Z84(21.1- 18.8+)   211227 Z84 .847- .181+    220102 J69 .114- .193-
211225 Z84(20.3- 18.8+)   211227 Z84 1.25- .324+    220102 J95 .073+ .086-
211225 Z84(21.3- 18.5+)   211227 D05 .618+ .050-    220102 J95 .138+ .132-
211225 073(17.6- 15.8+)   211227 D05 .201+ .356+    220102 970 .293+ .152-
211225 073(16.5- 17.3+)   211227 D05 .181+ .376+    220102 J95 .046+ .056-
211225 073(18.1- 14.9+)   211227 D05 .499+ .282+    220102 970 .362+ .178-
211225 204(21.7- 13.3+)   211227 D05 .349+ .153+    220102 J95 .111+ .084-
211225 204(21.7- 13.2+)   211227 D05 .218+ .246+    220102 J95 .120+ .164-
211225 204(21.4- 13.2+)   211227 D05 .097+ .279+    220102 G34 .554+ .112-
211225 204(21.9- 12.9+)   211227 D05 .957+ .285+    220102 G34 .074+ .125+
211225 204(21.4- 13.2+)   211227 D05 .310+ .291+    220102 G34 .509+ .253-
211225 204(21.4- 13.0+)   211227 D05 .379+ .222+    220104 H06 1.17+ .154+
211225 073(18.9- 9.95+)   211227 D05 .324+ .247+    220104 H06 .272- .370-
211225 073(19.7- 9.80+)   211227 D05 .989+ .328-    220104 H06 .034+ .212+
211225 073(19.7- 9.52+)   211227 D05 .428+ .222+    220104 H06 .387+ .195-
211225 073(19.2- 9.64+)   211227 D05 .740+ .227+    220104 H06 .157+ .082+
211225 073(19.3- 9.60+)   211227 D05 .893+ .033+    220104 H06 .124- .064+
211225 073(19.2- 9.55+)   211227 D05 .249+ .152+    220104 H06 4.1m- .352+
211226 204(20.0- 6.99+)   211227 D05 .537+ .158+    220104 H06 .276- .466-
211226 204(19.8- 7.15+)   211227 D05 .817+ .163+    220104 H06 .093- .117+
211226 204(19.8- 7.11+)   211227 D05 .714+ .188+    220104 970 .100- .210-
211226 204(19.8- 7.09+)   211227 D05 .371+ .293+    220104 970 .052- .253-
211226 Y00(25.4- .672-)   211227 D05 .581+ .212+    220105 H06(.663+ 3.40+)
211226 Y00(25.7- .705-)   211227 D05 .522+ .117+    220105 H06(.888+ 4.81+)
211226 Y00(25.7- .441-)   211227 D05 .566+ .236+    220105 H06(.082+ 4.39+)
211226 Y00(25.5- .380-)   211227 D05 .491+ .141+    220105 H06(.496- 3.54+)
211226 Y00(24.5- .921-)   211227 D05 .558+ .147+    220105 970 .059+ .084-
211226 Y00(25.6- .465-)   211228 G40 .252- .117+    220105 970 .077+ 2.2m+
211226 Y00(25.5- .411-)   211228 G40 .199- .088+    220105 970 .112+ .016+
211226 Y00(24.0- .861-)   211228 G40 .464- .253+    220105 970 .079+ .011-
211226 Y00(23.7- .613-)   211228 Z84 .739- .098+    220108 J95 .098- .228+
211226 Y00(24.6- .867-)   211228 Z84 .490- .073+    220108 J95 .135- .018-
211226 K19(7.11- .857+)   211228 Z84 .594- .112+    220108 J95 .229- .318+
211226 K19(7.38- 1.07+)   211228 Z84 .664- .084+    220108 J95 .059- .098+
211226 K19(7.73- 1.35+)   211228 Z84 .467- .087+    220112 W88 9.2m- .139-
211226 K19(7.38- .510+)   211228 Z10 .354- .013+    220112 W88 .106- .516-
211226 K19(6.97- 1.41+)   211228 Z10 .542- .015+    220112 W88 .018+ .606-
211226 K19(7.02- 1.18+)   211228 Z10 .288- .022+    220112 970 .571- .462+
211226 C95(6.96- 1.35+)   211228 Z10 .511- .066+    220112 970 .342- .162+
211226 C95(6.65- 1.10+)   211228 Z10 .391- 7.7m+    220113 H06 .918- .812-
211226 C95(6.73- 1.11+)   211229 Y00 .273- .376-    220113 H06 .368- .591+
211226 C95(6.52- 1.29+)   211229 Y00 .558- .446-    220117 970 .850- .323+
211226 C95(6.80- .773+)   211229 Y00 .520- .098+    220117 970 .582- .407+
211226 K19(6.62- .794+)   211229 Y00 .348- .189-    220120 J95 1.29- .735+
211226 C95(6.67- 1.05+)   211229 Y00 .326- .237+    220120 J95 .788- .277+
211226 C95(6.59- .940+)   211230 G40 .045+ .125-    220120 J95 .751- .615+
211226 K19(6.57- .780+)   211230 G40 .115+ .218-    220120 J95 .708- .271+
211226 C95(6.73- 1.05+)   211230 G40 .038+ .016+    220120 J95 .797- .127+
211226 C95(6.32- .969+)   211230 K19 .223+ 7.0m-    220124 U69 .972- .353+
211226 K19(6.72- 1.01+)   211230 K19 .020+ .067-    220125 G96 .687- .273+
211226 C95(6.22- .754+)   211230 K19 .013- .108+    220125 G96 .806- .286+
211226 C95(6.07- .771+)   211230 204 .313+ .050-    220125 G96 .517- .342+
211226 C95(6.86- .889+)   211231 204 .275+ 5.0m-    220125 G96 .587- .142+
211227 U72(2.79- .158+)   211231 204 .137+ .077-    220126 970 .476- .581+
211227 U72(3.91- 1.53+)   211231 204 .263+ .060-    220126 970 .506- .386+
211227 U72(3.12- .525+)   211231 204 .194+ .060-    220129 J95 1.00- .034-
211227 U72(.689+ 1.04+)   211231 970 .270+ .293-    220129 J95 .308- .152-
211227 J57(.563- .238+)   211231 970 .085+ .200-    220129 J95 .267- .310-
211227 J57(.598- .327+)   211231 970 .354+ .169-    220131 970 1.11+ 1.10-
211227 J57(.471- .255+)   220102 970 .130- .052+    220131 970 .618+ .551+
211227 Z84 .109- .233+    220102 970 .135+ .126-    220204 970 .889+ 1.17-
211227 Z84 .395- .280+    220102 Z84 .024+ .092-    220204 970 .773+ .205-
211227 Z84 1.37- .474+    220102 Z84 .064+ .123-
211227 Z84 .526- .418+    220102 Z84 .073+ .121-

Ephemerides (geocentric):
Date (UTC)   RA             Dec           delta elong  mag " sig PA
---- -----  ------------   ------------  ------ -----  --- --------
2021 12 30  06 02 09.164   +00 11 54.09  600888 155.6 16.3 .514  44
2021 12 31  06 05 31.175   +00 18 44.52  682774 155.7 16.6 .408  42
2022 01 01  06 08 10.208   +00 25 34.68  758842 155.7 16.8 .328  39
2022 01 02  06 10 21.277   +00 32 39.95  830365 155.7 17.0 .265  37
2022 01 03  06 12 13.541   +00 40 07.57  898235 155.7 17.2 .214  34
2022 01 04  06 13 52.990   +00 47 59.97  963098 155.6 17.3 .173  30
2022 01 05  06 15 23.687   +00 56 16.57  .00685 155.5 17.5 .139  26
2022 01 06  06 16 48.427   +01 04 55.16  .00726 155.4 17.6 .111  21
2022 01 07  06 18 09.123   +01 13 52.76  .00765 155.2 17.7 .089  15
2022 01 08  06 19 27.075   +01 23 06.33  .00803 155.1 17.8 .070   7
2022 01 09  06 20 43.151   +01 32 33.12  .00839 154.9 17.9 .056 178
2022 01 10  06 21 57.927   +01 42 10.78  .00875 154.7 18.0 .046 167
2022 01 11  06 23 11.775   +01 51 57.46  .00911 154.5 18.1 .038 154
2022 01 12  06 24 24.933   +02 01 51.74  .00945 154.2 18.2 .032 141
2022 01 13  06 25 37.539   +02 11 52.60  .00979 154.0 18.3 .028 128
2022 01 14  06 26 49.670   +02 21 59.32  .01012 153.7 18.4 .025 115
2022 01 15  06 28 01.354   +02 32 11.47  .01045 153.4 18.5 .022 103
2022 01 16  06 29 12.583   +02 42 28.89  .01077 153.1 18.5 .020  92
2022 01 17  06 30 23.329   +02 52 51.65  .01109 152.8 18.6 .017  79
2022 01 18  06 31 33.548   +03 03 20.05  .01140 152.5 18.7 .013  63
2022 01 19  06 32 43.195   +03 13 54.65  .01172 152.1 18.7 .011  39
2022 01 20  06 33 52.235   +03 24 36.23  .01202 151.8 18.8 9.9m   5
2022 01 21  06 35 00.657   +03 35 25.79  .01233 151.4 18.9 .012 152
2022 01 22  06 36 08.486   +03 46 24.45  .01264 151.0 18.9 .017 130
2022 01 23  06 37 15.794   +03 57 33.44  .01294 150.6 19.0 .022 117
2022 01 24  06 38 22.708   +04 08 54.00  .01325 150.1 19.1 .029 107
2022 01 25  06 39 29.416   +04 20 27.25  .01355 149.7 19.1 .036 100
2022 01 26  06 40 36.173   +04 32 14.18  .01386 149.2 19.2 .044  95
2022 01 27  06 41 43.303   +04 44 15.45  .01417 148.8 19.3 .053  90
2022 01 28  06 42 51.191   +04 56 31.35  .01448 148.3 19.3 .062  86
2022 01 29  06 44 00.277   +05 09 01.62  .01479 147.8 19.4 .072  83
2022 01 30  06 45 11.031   +05 21 45.39  .01511 147.3 19.4 .083  79
2022 01 31  06 46 23.925   +05 34 41.12  .01543 146.9 19.5 .095  77
2022 02 01  06 47 39.397   +05 47 46.65  .01576 146.4 19.6 .107  74
2022 02 02  06 48 57.811   +06 00 59.32  .01608 145.9 19.6 .122  72
2022 02 03  06 50 19.440   +06 14 16.16  .01642 145.4 19.7 .137  71
2022 02 04  06 51 44.447   +06 27 34.12  .01675 145.0 19.7 .154  69
2022 02 05  06 53 12.897   +06 40 50.27  .01709 144.5 19.8 .172  68
2022 02 06  06 54 44.768   +06 54 01.91  .01744 144.0 19.8 .191  67
2022 02 07  06 56 19.974   +07 07 06.69  .01778 143.6 19.9 .211  67
2022 02 08  06 57 58.381   +07 20 02.59  .01813 143.1 20.0 .233  66
2022 02 09  06 59 39.825   +07 32 47.93  .01848 142.6 20.0 .255  66
2022 02 10  07 01 24.124   +07 45 21.34  .01884 142.2 20.1 .278  66
2022 02 11  07 03 11.083   +07 57 41.71  .01919 141.8 20.1 .303  66
2022 02 12  07 05 00.501   +08 09 48.19  .01955 141.3 20.2 .327  66
2022 02 13  07 06 52.172   +08 21 40.16  .01992 140.9 20.2 .353  66
2022 02 14  07 08 45.891   +08 33 17.20  .02028 140.4 20.3 .379  66
2022 02 15  07 10 41.456   +08 44 39.11  .02065 140.0 20.3 .405  66
2022 02 16  07 12 38.672   +08 55 45.88  .02102 139.6 20.4 .432  66
2022 02 17  07 14 37.358   +09 06 37.67  .02140 139.1 20.4 .459  66
2022 02 18  07 16 37.356   +09 17 14.81  .02177 138.7 20.5 .486  66
2022 02 19  07 18 38.537   +09 27 37.72  .02216 138.3 20.5 .514  66
2022 02 20  07 20 40.809   +09 37 46.90  .02254 137.8 20.6 .541  66
2022 02 21  07 22 44.126   +09 47 42.83  .02293 137.4 20.6 .569  66
2022 02 22  07 24 48.486   +09 57 25.94  .02333 137.0 20.7 .596  67
2022 02 23  07 26 53.938   +10 06 56.52  .02373 136.5 20.7 .623  67
2022 02 24  07 29 00.575   +10 16 14.68  .02413 136.1 20.8 .651  67
2022 02 25  07 31 08.528   +10 25 20.29  .02455 135.6 20.8 .678  67
2022 02 26  07 33 17.963   +10 34 12.97  .02496 135.2 20.9 .705  67
2022 02 27  07 35 29.060   +10 42 52.05  .02539 134.8 20.9 .733  67
2022 02 28  07 37 42.004   +10 51 16.60  .02582 134.4 21.0 .761  67
2022 03 01  07 39 56.970   +10 59 25.49  .02626 133.9 21.0 .789  68
2022 03 02  07 42 14.099   +11 07 17.41  .02670 133.5 21.1 .817  68
2022 03 03  07 44 33.493   +11 14 51.02  .02715 133.1 21.1 .846  68
2022 03 04  07 46 55.205   +11 22 04.97  .02761 132.7 21.2 .875  68
2022 03 05  07 49 19.237   +11 28 58.05  .02807 132.3 21.2 .904  68
2022 03 06  07 51 45.546   +11 35 29.18  .02854 131.9 21.3 .934  69
2022 03 07  07 54 14.050   +11 41 37.51  .02902 131.6 21.3 .964  69
2022 03 08  07 56 44.640   +11 47 22.36  .02950 131.2 21.3 0.99  69
2022 03 09  07 59 17.188   +11 52 43.25  .02998 130.8 21.4 1.03  70
2022 03 10  08 01 51.553   +11 57 39.87  .03047 130.5 21.4 1.06  70
2022 03 11  08 04 27.585   +12 02 12.07  .03096 130.1 21.5 1.09  70
2022 03 12  08 07 05.130   +12 06 19.83  .03146 129.8 21.5 1.12  71
2022 03 13  08 09 44.033   +12 10 03.27  .03196 129.4 21.6 1.15  71
2022 03 14  08 12 24.136   +12 13 22.61  .03246 129.1 21.6 1.18  72
2022 03 15  08 15 05.280   +12 16 18.21  .03297 128.7 21.7 1.21  72
2022 03 16  08 17 47.310   +12 18 50.51  .03349 128.4 21.7 1.24  72
2022 03 17  08 20 30.075   +12 21 00.07  .03401 128.1 21.7 1.27  73
2022 03 18  08 23 13.436   +12 22 47.54  .03453 127.8 21.8 1.30  73
2022 03 19  08 25 57.271   +12 24 13.59  .03505 127.4 21.8 1.33  74
2022 03 20  08 28 41.479   +12 25 18.92  .03559 127.1 21.9 1.36  74
2022 03 21  08 31 25.993   +12 26 04.21  .03612 126.8 21.9 1.39  74
2022 03 22  08 34 10.777   +12 26 30.02  .03666 126.4 22.0 1.42  75
2022 03 23  08 36 55.832   +12 26 36.79  .03721 126.1 22.0 1.44  75
2022 03 24  08 39 41.191   +12 26 24.79  .03776 125.8 22.0 1.47  76
2022 03 25  08 42 26.916   +12 25 54.12  .03832 125.5 22.1 1.50  76
2022 03 26  08 45 13.089   +12 25 04.68  .03889 125.2 22.1 1.52  76
2022 03 27  08 47 59.804   +12 23 56.23  .03947 124.8 22.2 1.55  77
2022 03 28  08 50 47.157   +12 22 28.37  .04005 124.5 22.2 1.57  77
2022 03 29  08 53 35.238   +12 20 40.65  .04063 124.2 22.2 1.60  77
2022 03 30  08 56 24.128   +12 18 32.55  .04123 123.9 22.3 1.62  78
2022 03 31  08 59 13.885   +12 16 03.55  .04183 123.6 22.3 1.65  78
2022 04 01  09 02 04.545   +12 13 13.19  .04244 123.3 22.4 1.67  79
2022 04 02  09 04 56.121   +12 10 01.09  .04305 123.0 22.4 1.70  79
2022 04 03  09 07 48.600   +12 06 26.97  .04367 122.7 22.4 1.72  79
2022 04 04  09 10 41.951   +12 02 30.68  .04430 122.5 22.5 1.75  80
2022 04 05  09 13 36.121   +11 58 12.18  .04493 122.2 22.5 1.77  80
2022 04 06  09 16 31.047   +11 53 31.57  .04556 121.9 22.6 1.79  81
2022 04 07  09 19 26.654   +11 48 29.03  .04620 121.6 22.6 1.82  81
2022 04 08  09 22 22.863   +11 43 04.84  .04685 121.4 22.6 1.84  81
2022 04 09  09 25 19.587   +11 37 19.37  .04750 121.1 22.7 1.86  82
2022 04 10  09 28 16.738   +11 31 13.06  .04815 120.9 22.7 1.89  82
2022 04 11  09 31 14.224   +11 24 46.42  .04881 120.6 22.7 1.91  83
2022 04 12  09 34 11.953   +11 18 00.03  .04947 120.4 22.8 1.93  83
2022 04 13  09 37 09.829   +11 10 54.54  .05013 120.1 22.8 1.95  83
2022 04 14  09 40 07.758   +11 03 30.65  .05080 119.9 22.9 1.97  84
2022 04 15  09 43 05.648   +10 55 49.13  .05147 119.6 22.9 2.00  84
2022 04 16  09 46 03.414   +10 47 50.75  .05215 119.4 22.9 2.02  85
2022 04 17  09 49 00.982   +10 39 36.31  .05283 119.1 23.0 2.04  85
2022 04 18  09 51 58.298   +10 31 06.55  .05351 118.9 23.0 2.06  85
2022 04 19  09 54 55.329   +10 22 22.10  .05420 118.6 23.0 2.08  86
2022 04 20  09 57 52.068   +10 13 23.48  .05490 118.4 23.1 2.09  86
2022 04 21  10 00 48.536   +10 04 11.04  .05559 118.2 23.1 2.11  87
2022 04 22  10 03 44.772   +09 54 44.95  .05630 117.9 23.1 2.13  87
2022 04 23  10 06 40.837   +09 45 05.26  .05701 117.7 23.2 2.15  87
2022 04 24  10 09 36.796   +09 35 11.87  .05773 117.4 23.2 2.16  88
2022 04 25  10 12 32.722   +09 25 04.63  .05845 117.2 23.2 2.18  88
2022 04 26  10 15 28.683   +09 14 43.33  .05918 117.0 23.3 2.19  88
2022 04 27  10 18 24.742   +09 04 07.73  .05991 116.7 23.3 2.21  89
2022 04 28  10 21 20.954   +08 53 17.63  .06065 116.5 23.3 2.22  89
2022 04 29  10 24 17.360   +08 42 12.88  .06140 116.3 23.4 2.24  90
2022 04 30  10 27 13.991   +08 30 53.36  .06215 116.1 23.4 2.25  90

   RA/decs are astrometric J2000 coordinates (corrected for light
time lag,  but in the inertial J2000 frame,  i.e.,  not rotated
for precession or nutation,  and differential light deflection is
not included.)   Display can be turned on/off in the 'advanced
options' for ephemerides.  When turning them on,  you can select
from various format choices (base-60,  decimal, different
precisions,  etc.)

   Distances are in kilometers for distances under one million km
(about 0.00668 AU),  and in AUs for larger distances.