"Pseudo-MPEC" for 1964-054A = NORAD 00879 = OGO 1
Created 2021 Jan 16 17:16:05 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
This has observations from the last two orbits of the object, before it re-entered over Tahiti at 2020 Aug 29 20:46 UTC. The area/mass ratio is essentially determined from atmospheric drag during the last non-re-entering perigee.
There is a pseudo-MPEC and comments about this object from early 2018, at a time when I could say it would re-enter in August 2020 but not be very specific about when or where; and a pseudo-MPEC and comments from mid-2019, when we had more data and a slightly better prediction, but still not good enough to say where it would re-enter.
In fact, those circumstances were sufficiently vague that I didn't try to get people to keep tracking the object in the weeks before re-entry, when it was losing speed at each perigee. Thus, its ephemerides gradually degraded until the object was found by the Catalina Sky Survey on August 26 and given the designation C1979A1. Sam Deen quickly noticed that it was a likely re-entering artsat, as did folks at JPL and elsewhere. Speculation as to its identity followed (see thread following Sam's post). I was out of the reach of the Interwebs (camping trip), but somebody noticed the above pseudo-MPECs from two years before and figured out that it was 1964-054A = OGO 1.
Over the following few days before re-entry, many people contributed observations (thank you!), enough to provide a very solid prediction that the object would re-enter over Tahiti. And, in fact, we have a video of the object re-entering and breaking up over Tahiti at the predicted time.
Astrometry:
C1979M1* C2020 08 26.22870 21 19 52.55 +16 27 32.5 ~8Q6M 15.7 GVNEOCP703
C1979M1 C2020 08 26.24365 21 19 41.29 +16 42 30.8 ~8Q6M 15.7 GVNEOCP703
C1979M1 C2020 08 26.29283 21 19 02.64 +17 28 19.3 ~8Q7M 15.5 GVNEOCPI52
C1979M1 C2020 08 26.29299 21 19 02.53 +17 28 27.7 ~8Q7M 15.7 GVNEOCPI52
C1979M1 C2020 08 26.29314 21 19 02.42 +17 28 35.8 ~8Q7M 15.6 GVNEOCPI52
C1979M1 C2020 08 26.29329 21 19 02.31 +17 28 44.0 ~8Q7M 15.4 GVNEOCPI52
C1979M1 C2020 08 26Jk4OQpXS3]@QXWmCBNSP36;8f@\OFfFKX4c+2prAstrometryo6IU55
C1979M1 C2020 08 26'mpK5yX?2n[$4U;dU'd9y[^mrV=bYDUOIE('dnvysdT4N0omj/lKU55
C1979M1 C2020 08 26ePs8redacted;`j?h0clickH8/+sMyIMr4[`E0/6sU;^_hPEXQG;U55
C1979M1 C2020 08 26.33511 21 18 36.03 +18 03 41.5 ~8Q8M 15.4 GVNEOCPI52
C1979M1 C2020 08 26.33526 21 18 35.95 +18 03 48.8 ~8Q8M 15.3 GVNEOCPI52
C1979M1 C2020 08 26.33541 21 18 35.88 +18 03 56.2 ~8Q8M 15.6 GVNEOCPI52
C1979M1 C2020 08 26.33557 21 18 35.81 +18 04 03.5 ~8Q8M 15.8 GVNEOCPI52
C1979M1 C2020 08 26.39013 21 18 28.43 +18 44 27.3 ~8Q9b 15.7 GVNEOCPI52
C1979M1 C2020 08 26.39028 21 18 28.45 +18 44 34.2 ~8Q9b 15.7 GVNEOCPI52
C1979M1 C2020 08 26.39044 21 18 28.50 +18 44 40.2 ~8Q9b 15.5 GVNEOCPI52
C1979M1 C2020 08 26.39059 21 18 28.53 +18 44 46.6 ~8Q9b 15.8 GVNEOCPI52
A10pFzh* C2020 08 26.39720621 25 21.86 +19 36 19.0 ~8QCM 15.77oVNEOCPT05
C1979M1 C2020 08 26.40323 21 19 26.00 +18 33 47.0 ~8QA7 15.7 rNEOCP718
A10pFzh C2020 08 26.40399421 25 13.54 +19 42 16.2 ~8QCM 15.68oVNEOCPT05
C1979M1 C2020 08 26.40415 21 19 26.56 +18 34 25.3 ~8QA7 15.8 rNEOCP718
C1979M1 C2020 08 26.40506 21 19 27.14 +18 35 03.0 ~8QA7 15.7 rNEOCP718
C1979M1 C2020 08 26.40597 21 19 27.76 +18 35 41.9 ~8QA7 15.8 rNEOCP718
C1979M1 C2020 08 26.40688 21 19 28.34 +18 36 19.4 ~8QA7 15.8 rNEOCP718
A10pFzh C2020 08 26.40903321 25 07.37 +19 46 37.8 ~8QCM 15.72oVNEOCPT05
A10pFzh C2020 08 26.41233021 25 03.36 +19 49 26.9 ~8QCM 15.74oVNEOCPT05
C1979M1 C2020 08 26.41689 21 18 40.80 +19 02 24.1 ~8QA7 16.2 GVNEOCPI52
C1979M1 C2020 08 26.41700 21 18 40.87 +19 02 28.7 ~8QA7 15.5 GVNEOCPI52
C1979M1 C2020 08 26.41711 21 18 40.95 +19 02 33.1 ~8QA7 15.9 GVNEOCPI52
C1979M1 C2020 08 26.41739 21 18 41.13 +19 02 43.8 ~8QA7 15.4 GVNEOCPI52
C1979M1 C2020 08 26.45345 21 19 18.57 +19 25 19.9 .50 15.6 GV I52
C1979M1 C2020 08 26.45356 21 19 18.72 +19 25 23.7 .50 15.4 GV I52
C1979M1 C2020 08 26.45367 21 19 18.87 +19 25 27.6 .50 15.4 GV I52
C1979M1 C2020 08 26.45378 21 19 19.02 +19 25 31.8 .50 15.3 GV I52
C1979M1 C2020 08 26.46395921 24 07.817+20 30 30.06 .25 15.6 GV T04
C1979M1 C2020 08 26.46437721 24 07.475+20 30 48.72 .25 15.4 GV T04
C1979M1 C2020 08 26.46457621 24 07.293+20 30 57.38 .25 15.9 GV T04
C1979M1 C2020 08 26.46479421 24 07.115+20 31 07.38 .25 15.3 GV T04
C1979M1 C2020 08 26.46501021 24 06.929+20 31 17.15 .25 15.3 GV T04
C1979M1 C2020 08 26.46521121 24 06.737+20 31 25.76 .25 15.1 GV T04
C1979M1 C2020 08 26.47839921 23 56.439+20 40 57.48 .10 16.3 G F65
C1979M1 C2020 08 26.47861021 23 56.297+20 41 06.33 .10 15.9 G F65
C1979M1 C2020 08 26.47882021 23 56.145+20 41 15.28 .10 15.3 G F65
C1979M1 C2020 08 26.47903021 23 55.996+20 41 24.18 .10 15.9 G F65
C1979M1 C2020 08 26.88274321 45 16.935+28 44 16.08 .20 15.7 GV 181
C1979M1 C2020 08 26.88289621 45 16.833+28 44 24.19 .20 15.8 GV 181
C1979M1 C2020 08 26.88305321 45 16.720+28 44 32.33 .20 15.9 GV 181
C1979M1 C2020 08 26.88320921 45 16.606+28 44 40.38 .20 15.9 GV 181
C1979M1 C2020 08 26.88336621 45 16.483+28 44 48.48 .20 15.4 GV 181
C1979M1 CK200826:213021 325.63449 +25.59140 140 150m15.4 GV N88
C1979M1 CK200826:213334 325.64959 +25.61652 120 130m15.8 GV N88
C1979M1 CK200826:213600 325.66133 +25.63568 80 100m15.7 GV N88
C1979M1 CK200826:214847 325.72691 +25.73503 130 140m15.6 GV N88
1964-054A KC2020 08 26.92697721 55 22.19 +26 08 09.1 150 100m15.8 GV J69
1964-054A KC2020 08 26.92801421 55 23.25 +26 09 18.4 150 100m15.9 GV J69
1964-054A KC2020 08 26.92905221 55 24.32 +26 10 27.8 150 100m15.8 GV J69
1964-054A KC2020 08 26.93009121 55 25.41 +26 11 37.0 150 100m16.0 GV J69
1964-054A KC2020 08 26.93112721 55 26.45 +26 12 46.2 150 100m16.0 GV J69
1964-054A KC2020 08 26.93216421 55 27.52 +26 13 55.2 150 100m15.9 GV J69
1964-054A C2020 08 26.93698 21 59 30.40 +27 19 31.8 .20 14.9 Vq G40
1964-054A C2020 08 26.93786 21 59 30.89 +27 20 41.2 .20 14.5 Vq G40
1964-054A C2020 08 26.93871 21 59 31.26 +27 21 46.5 .20 14.6 Vq G40
1964-054A KCK200827:025858 334.61621 +30.26483 690 680m15.6 GV H06
1964-054A KCK200827:030233 334.65585 +30.33728 770 760m15.8 GV H06
1964-054A C2020 08 27.13921 22 19 23.16 +30 42 04.2 .20 q H06
1964-054A C2020 08 27.14126 22 19 30.51 +30 45 42.9 .20 q H06
1964-054A C2020 08 27.14434 22 19 41.45 +30 51 09.8 .20 q H06
1964-054A C2020 08 27.15348 22 20 13.03 +31 07 32.6 .20 q H06
C1979M1 C2020 08 27.19896 22 23 45.51 +32 27 21.8 150 100m14.9 GV I52
C1979M1 C2020 08 27.19909 22 23 45.96 +32 27 37.7 150 100m15.1 GV I52
C1979M1 C2020 08 27.19922 22 23 46.40 +32 27 52.8 150 100m15.0 GV I52
C1979M1 C2020 08 27.19935 22 23 46.81 +32 28 07.1 150 100m15.1 GV I52
1964-054A KC2020 08 27.81363 20 30 30.66 -06 32 52.9 .20 14.1 GV K19
1964-054A KC2020 08 27.81513 20 30 38.63 -06 24 39.6 .20 13.9 GV K19
1964-054A KC2020 08 27.81663 20 30 46.51 -06 16 31.8 .20 13.9 GV K19
1964-054A KC2020 08 27.84041 20 32 37.66 -04 17 31.9 .20 14.2 GV K19
1964-054A KC2020 08 27.84112 20 32 40.59 -04 14 16.6 .20 14.3 GV K19
1964-054A KC2020 08 27.84182 20 32 43.52 -04 11 01.6 .20 14.2 GV K19
C1979M1 C2020 08 27.86797120 37 04.019-01 51 16.13 .10 14.8 GV Z84
C1979M1 C2020 08 27.86813820 37 04.479-01 50 37.04 .10 14.4 GV Z84
C1979M1 C2020 08 27.86822020 37 04.686-01 50 18.07 .10 15.0 GV Z84
C1979M1 C2020 08 27.86838520 37 05.127-01 49 39.30 .10 14.8 GV Z84
C1979M1 C2020 08 27.93729220 39 23.683+01 58 46.84 .20 15.2 GV Z84
C1979M1 C2020 08 27.93737520 39 23.802+01 59 00.61 .20 14.5 GV Z84
C1979M1 C2020 08 27.93745720 39 23.939+01 59 14.59 .20 14.8 GV Z84
C1979M1 C2020 08 27.93754020 39 24.070+01 59 28.73 .20 15.4 GV Z84
C1979M1 C2020 08 27.93762420 39 24.218+01 59 43.05 .20 13.8 GV Z84
C1979M1 C2020 08 27.93770720 39 24.353+01 59 56.91 .20 15.1 GV Z84
1964-054A KCK200827:2258032 309.98580 +02.05326 220 230m14.8 GV Z80
1964-054A KCK200827:2301220 310.01174 +02.15530 .23 14.4 GV Z80
1964-054A KCK200827:2301520 310.01561 +02.17056 230 240m14.6 GV Z80
1964-054A KCK200827:2302221 310.01952 +02.18582 220 230m14.5 GV Z80
1964-054A KCK200827:2302520 310.02342 +02.20093 220 230m14.4 GV Z80
1964-054A KCK200827:2303220 310.02722 +02.21609 220 240m14.7 GV Z80
1964-054A KCK200827:2303520 310.03111 +02.23118 240 230m14.6 GV Z80
1964-054A KCK200827:2304220 310.03503 +02.24641 .23 14.4 GV Z80
1964-054A KCK200827:2307281 310.05893 +02.33969 230 250m14.6 GV Z80
1964-054A KCK200827:2308283 310.06670 +02.36973 230 240m14.8 GV Z80
1964-054A KCK200827:2308581 310.07062 +02.38472 220 240m14.5 GV Z80
1964-054A KCK200827:2309281 310.07453 +02.39971 230 240m14.6 GV Z80
1964-054A KCK200827:2309580 310.07832 +02.41454 240 250m14.7 GV Z80
1964-054A KCK200827:2310281 310.08208 +02.42945 220 240m14.6 GV Z80
1964-054A KCK200827:2310580 310.08597 +02.44429 220 250m14.6 GV Z80
1964-054A KCK200827:2311280 310.08982 +02.45917 240 250m14.7 GV Z80
1964-054A KCK200827:2311580 310.09368 +02.47393 220 250m14.6 GV Z80
1964-054A KCK200827:2312280 310.09744 +02.48877 .23 14.5 GV Z80
1964-054A CK200828:022542 315.77403 +07.99719 250 210m14.9 GV H06
1964-054A CK200828:022711 315.77820 +08.02816 230 200m14.6 GV H06
1964-054A CK200828:022809 315.78060 +08.04769 230 200m14.9 GV H06
1964-054A CK200828:022842 315.78219 +08.05941 250 210m14.5 GV H06
1964-054A CK200828:022940 315.78480 +08.07939 250 230m14.8 GV H06
C1979M1 C2020 08 28.26725 21 04 12.34 +11 44 50.6 .20 15.1 718
C1979M1 C2020 08 28.26780 21 04 12.30 +11 45 32.6 .20 15.5 718
C1979M1 C2020 08 28.26808 21 04 12.30 +11 45 52.8 .20 15.0 718
C1979M1 C2020 08 28.26835 21 04 12.25 +11 46 13.0 .20 15.4 718
C1979M1 C2020 08 28.26862 21 04 12.26 +11 46 34.0 .20 15.5 718
C1979M1 C2020 08 28.26917 21 04 12.18 +11 47 14.6 .20 15.2 718
C1979M1 C2020 08 28.26972 21 04 12.10 +11 47 55.5 .20 15.0 718
C1979M1 C2020 08 28.26999 21 04 12.12 +11 48 16.4 .20 15.1 718
C1979M1 C2020 08 28.27054 21 04 12.07 +11 48 57.5 .20 15.2 718
C1979M1 C2020 08 28.27082 21 04 12.05 +11 49 17.2 .20 15.2 718
C1979M1 C2020 08 28.27109 21 04 11.99 +11 49 37.4 .20 15.8 718
C1979M1 C2020 08 28.27136 21 04 12.01 +11 49 58.2 .20 15.3 718
C1979M1 C2020 08 28.27191 21 04 11.92 +11 50 38.8 .20 15.4 718
C1979M1 C2020 08 28.27219 21 04 11.93 +11 51 00.2 .20 15.5 718
C1979M1 C2020 08 28.27247 21 04 11.91 +11 51 20.2 .20 15.0 718
C1979M1 C2020 08 28.27275 21 04 11.84 +11 51 39.8 .20 15.7 718
C1979M1 C2020 08 28.27329 21 04 11.84 +11 52 21.5 .20 15.0 718
C1979M1 C2020 08 28.27385 21 04 11.79 +11 53 01.9 .20 15.8 718
C1979M1 C2020 08 28.27412 21 04 11.79 +11 53 21.8 .20 15.0 718
C1979M1 C2020 08 28.27467 21 04 11.74 +11 54 02.0 .20 15.8 718
C1979M1 C2020 08 28.27521 21 04 11.70 +11 54 42.2 .20 15.1 718
C1979M1 C2020 08 28.27549 21 04 11.69 +11 55 02.4 .20 15.8 718
C1979M1 C2020 08 28.27604 21 04 11.65 +11 55 42.8 .20 15.1 718
C1979M1 C2020 08 28.27631 21 04 11.63 +11 56 02.6 .20 15.4 718
C1979M1 C2020 08 28.27658 21 04 11.64 +11 56 23.4 .20 15.6 718
C1979M1 C2020 08 28.27713 21 04 11.57 +11 57 03.0 .20 15.3 718
C1979M1 C2020 08 28.27741 21 04 11.60 +11 57 23.7 .20 15.8 718
C1979M1 C2020 08 28.27768 21 04 11.56 +11 57 43.7 .20 14.9 718
C1979M1 C2020 08 28.27795 21 04 11.51 +11 58 03.3 .20 15.2 718
C1979M1 C2020 08 28.27823 21 04 11.53 +11 58 24.3 .20 15.9 718
ZTF0ENg* C2020 08 28.27829921 04 54.29 +12 20 28.0 150 150m16.03gUNEOCPI41
C1979M1 C2020 08 28.27850 21 04 11.51 +11 58 43.6 .20 15.2 718
ZTF0ENg C2020 08 28.27864621 04 54.11 +12 20 52.4 150 150m16.03gUNEOCPI41
ZTF0ENg C2020 08 28.27876221 04 53.96 +12 21 03.3 150 150m16.19gUNEOCPI41
ZTF0ENg C2020 08 28.27910921 04 53.78 +12 21 28.4 150 150m16.19gUNEOCPI41
ZTF0ENg C2020 08 28.27923621 04 53.88 +12 21 36.5 150 150m16.15gUNEOCPI41
ZTF0ENg C2020 08 28.27958321 04 53.66 +12 22 01.5 150 150m16.15gUNEOCPI41
ZTF0ENg C2020 08 28.33038 21 03 31.89 +13 21 13.1 150 150m15.8 GVNEOCPI52
ZTF0ENg C2020 08 28.33051 21 03 31.89 +13 21 21.3 150 150m15.1 GVNEOCPI52
ZTF0ENg C2020 08 28.33065 21 03 31.89 +13 21 29.6 150 150m15.1 GVNEOCPI52
ZTF0ENg C2020 08 28.33078 21 03 31.89 +13 21 37.9 150 150m15.8 GVNEOCPI52
ZTF0ENg AC2020 08 28A9JL2Q%6$xJ:8@_POu+E4k3djFo/Gd*`4VL@[bD3f8-x(7'XBlgnH06
ZTF0ENg AC2020 08 280X:AajKhere!Y[Mypjw*06dqhF.forI$+PexplanationJLD[^8aH06
C1979M1 C2020 08 28.46929021 09 53.228+16 23 19.37 .15 15.4 GV T04
C1979M1 C2020 08 28.46950721 09 53.127+16 23 30.41 .15 15.3 GV T04
C1979M1 C2020 08 28.47057521 09 52.684+16 24 24.78 .15 15.6 GV T04
C1979M1 C2020 08 28.47079121 09 52.594+16 24 36.06 .15 15.5 GV T04
C1979M1 C2020 08 28.47100421 09 52.508+16 24 46.68 .15 15.8 GV T04
C1979M1 C2020 08 28.47121721 09 52.418+16 24 57.72 .15 15.4 GV T04
C1979M1 C2020 08 28.47143021 09 52.337+16 25 08.44 .15 15.6 GV T04
OGO-1 C2020 08 28.85182 21 37 57.63 +21 21 40.8 150 150m15.5 R 470
OGO-1 C2020 08 28.85199 21 37 57.65 +21 21 50.6 150 150m15.7 R 470
OGO-1 C2020 08 28.85216 21 37 57.68 +21 22 00.3 150 150m16.2 R 470
OGO-1 C2020 08 28.85234 21 37 57.68 +21 22 10.0 150 150m15.3 R 470
OGO-1 C2020 08 28.85252 21 37 57.71 +21 22 20.1 150 150m15.6 R 470
1964-054A C2020 08 29.06792 21 47 22.93 +27 39 16.4 150 150m15.7 R Y00
1964-054A C2020 08 29.06831 21 47 22.56 +27 39 41.9 150 150m15.9 R Y00
1964-054A C2020 08 29.06868 21 47 22.22 +27 40 06.5 150 150m15.6 R Y00
1964-054A C2020 08 29.06893 21 47 22.00 +27 40 23.9 150 150m15.7 R Y00
1964-054A C2020 08 29.06920 21 47 21.81 +27 40 40.1 150 150m15.3 R Y00
1964-054A C2020 08 29.06948 21 47 21.54 +27 40 58.5 150 150m15.9 R Y00
1964-054A C2020 08 29.06987 21 47 21.21 +27 41 24.3 150 150m16.1 R Y00
1964-054A C2020 08 29.07084 21 47 20.36 +27 42 28.0 150 150m15.8 R Y00
1964-054A C2020 08 29.07123 21 47 19.94 +27 42 52.5 150 150m16.3 R Y00
1964-054A C2020 08 29.07223 21 47 19.11 +27 43 59.3 150 150m16.1 R Y00
1964-054A C2020 08 29.07260 21 47 18.75 +27 44 22.8 150 150m15.9 R Y00
1964-054A C2020 08 29.07297 21 47 18.44 +27 44 48.5 150 150m16.0 R Y00
1964-054A C2020 08 29.07386 21 47 17.53 +27 45 45.9 150 150m15.8 R Y00
1964-054A C2020 08 29.07423 21 47 17.31 +27 46 12.9 150 150m16.3 R Y00
1964-054A C2020 08 29.07454 21 47 16.98 +27 46 29.2 150 150m16.0 R Y00
1964-054A KCK200829:041636 329.56644 +26.91554 .14 15.8 GV H06
1964-054A KCK200829:041809 329.56939 +26.93868 .16 15.8 GV H06
1964-054A KCK200829:041952 329.57265 +26.96437 170 140m15.8 GV H06
1964-054A KCK200829:042153 329.57636 +26.99475 140 130m16.3 GV H06
C1979M1 C2020 08 29.32794 22 00 31.67 +29 32 25.4 150 150m15.6 718
C1979M1 C2020 08 29.32839 22 00 31.97 +29 32 56.3 150 150m15.3 718
C1979M1 C2020 08 29.32883 22 00 32.31 +29 33 27.0 150 150m15.2 718
C1979M1 C2020 08 29.32928 22 00 32.65 +29 33 58.9 150 150m15.2 718
C1979M1 C2020 08 29.32973 22 00 32.92 +29 34 29.7 150 150m15.2 718
C1979M1 C2020 08 29.33017 22 00 33.26 +29 35 00.8 150 150m15.3 718
C1979M1 C2020 08 29.33062 22 00 33.58 +29 35 31.4 150 150m15.6 718
C1979M1 C2020 08 29.33107 22 00 33.96 +29 36 02.7 150 150m15.9 718
C1979M1 C2020 08 29.33151 22 00 34.26 +29 36 34.3 150 150m15.4 718
C1979M1 C2020 08 29.33196 22 00 34.59 +29 37 05.2 150 150m15.2 718
C1979M1 C2020 08 29.33241 22 00 34.91 +29 37 36.4 150 150m15.3 718
C1979M1 C2020 08 29.33286 22 00 35.23 +29 38 07.2 150 150m15.2 718
C1979M1 C2020 08 29.33330 22 00 35.57 +29 38 38.1 150 150m15.2 718
C1979M1 C2020 08 29.33375 22 00 35.95 +29 39 09.0 150 150m15.4 718
C1979M1 C2020 08 29.33420 22 00 36.26 +29 39 40.2 150 150m15.8 718
C1979M1 C2020 08 29.33464 22 00 36.61 +29 40 11.0 150 150m15.9 718
C1979M1 C2020 08 29.33509 22 00 36.96 +29 40 42.0 150 150m15.3 718
C1979M1 C2020 08 29.33554 22 00 37.31 +29 41 13.2 150 150m15.3 718
C1979M1 C2020 08 29.33598 22 00 37.69 +29 41 43.9 150 150m15.4 718
C1979M1 C2020 08 29.33643 22 00 38.04 +29 42 15.2 150 150m15.1 718
C1979M1 C2020 08 29.33688 22 00 38.35 +29 42 45.7 150 150m15.2 718
C1979M1 C2020 08 29.33733 22 00 38.69 +29 43 16.8 150 150m15.7 718
C1979M1 C2020 08 29.33778 22 00 39.10 +29 43 48.3 150 150m15.8 718
C1979M1 C2020 08 29.33822 22 00 39.43 +29 44 20.0 150 150m15.1 718
C1979M1 C2020 08 29.33867 22 00 39.87 +29 44 49.2 150 150m15.1 718
C1979M1 C2020 08 29.33912 22 00 40.15 +29 45 20.7 150 150m15.3 718
C1979M1 C2020 08 29.33956 22 00 40.53 +29 45 51.5 150 150m15.2 718
C1979M1 C2020 08 29.34001 22 00 40.88 +29 46 22.1 150 150m15.2 718
C1979M1 C2020 08 29.47728622 12 23.736+34 30 07.44 .30 15.2 GV T03
C1979M1 C2020 08 29.47750222 12 23.961+34 30 28.74 .30 15.6 GV T03
C1979M1 C2020 08 29.47771622 12 24.132+34 30 48.58 .30 15.4 GV T03
C1979M1 C2020 08 29.47792922 12 24.311+34 31 08.92 .30 15.4 GV T03
C1979M1 C2020 08 29.47814122 12 24.517+34 31 28.18 .30 15.3 GV T03
C1979M1 C2020 08 29.47835522 12 24.699+34 31 48.75 .30 15.2 GV T03
C1979M1 C2020 08 29.60254022 18 25.201+37 48 12.75 .30 14.6 GV T04
C1979M1 C2020 08 29.60275622 18 26.506+37 48 34.74 .30 14.4 GV T04
C1979M1 C2020 08 29.60339122 18 30.351+37 49 39.05 .30 14.1 GV T04
C1979M1 C2020 08 29.60360322 18 31.669+37 50 00.15 .30 14.1 GV T04
C1979M1 C2020 08 29.60381722 18 32.950+37 50 21.81 .30 14.3 GV T04
C1979M1 C2020 08 29.60404622 18 34.316+37 50 44.55 .30 14.4 GV T04
C1979M1 C2020 08 29.60425822 18 35.609+37 51 06.00 .30 14.5 GV T04
C1979M1 C2020 08 29.60447222 18 36.932+37 51 27.91 .30 14.3 GV T04
OGO-1 C2020 08 29.78639701 08 01.86 +45 00 41.1 .30 16.5 R 470
OGO-1 C2020 08 29.78645501 08 11.03 +45 00 56.0 .30 16.4 R 470
OGO-1 C2020 08 29.78662801 08 28.91 +45 01 31.7 .30 16.5 R 470
Station data:
(181) Observatoire des Makes, Saint-Louis (S21.199551 E55.410000) France
(Reunion). Observers T. Santana-Ros, L. Conversi, M. Micheli, J.
Berthier, F. Vachier, A. Klotz, J.-P. Teng, A. Peyrot, P. Thierry, P.
Descamps. Measurer M. Micheli. 0.6-m f/8 reflector + CCD.
(470) Ceccano (N41.570282 E13.327560) Italy. Observer G. Masi.
(703) Catalina Sky Survey (N32.417006 W110.732640) US/Arizona. Observers
T. A. Pruyne, B. M. Africano, E. J. Christensen, G. A. Farneth, D. C.
Fuls, A. R. Gibbs, A. D. Grauer, H. Gröller, J. A. Johnson, R. A.
Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C.
Shelly, K. W. Wierzchoś. 0.68 m Schmidt + 10K CCD.
(718) Tooele (N40.641408 W112.295800) US/Utah. Observer P. Wiggins. 0.35-m
f/5.5 Schmidt-Cassegrain + CCD.
(F65) Haleakala-Faulkes Telescope North (N20.707009 W156.257496) US/Hawaii. 2.0-m
Faulkes Telescope North.
(G40) Slooh.com Canary Islands Observatory (N28.299720 W16.508260) Canary
Islands (Spain). Observers G. Gašparović, Y. Chen. Measurers G.
Gašparović, Y. Chen, G. Y. Gasparovic. 0.43-m f/6.8 Corrected Dall-Kirkham
+ CCD.
(H06) RAS Observatory, Mayhill (N32.903325 W105.528700) US/New
Mexico. Observers M. Suzuki, G. Gašparović, Y. Chen. Measurers M. Suzuki,
G. Gašparović, Y. Chen, G. Y. Gasparovic. 0.43-m f/6.8 reflector + CCD +
f/4.5 focal reducer.
(I41) Palomar Mountain--ZTF (N33.357340 W116.859780) US/California. 1.2-m
f/2.44 Oschin Schmidt + CCD.
(I52) Steward Observatory, Mt. Lemmon Station (N32.442547 W110.788920)
US/Arizona. Observer D. C. Fuls. 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, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchoś. 1.0-m reflector + CCD.
(J69) North Observatory, Clanfield (N50.939017 W1.019656) UK/England.
Observer D. Briggs. 0.41-m f/4.5 Newtonian reflector + CCD.
(K19) PASTIS Observatory, Banon (N43.999462 E5.647310) France. Observer C.
Demeautis. 0.16-m Reflector f/3.3 + CCD.
(N88) Xingming Observatory #3, Nanshan (N43.471787 E87.173220) China.
Observer X. Gao. Measurer Q.-Z. Ye.
(T03) Haleakala-LCO Clamshell {#}3 (N20.706987 W156.257530) US/Hawaii.
Observers T. Santana-Ros, L. Conversi, M. Micheli. Measurer M. Micheli.
0.4-m reflector + CCD.
(T04) Haleakala-LCO OGG B {#}2 (N20.706966 W156.257510) US/Hawaii. Observers
T. Santana-Ros, L. Conversi, M. Micheli. Measurer M. Micheli. 0.4-m
reflector + CCD.
(T05) ATLAS-HKO, Haleakala (N20.707582 W156.257008) US/Hawaii. Observers
L. Denneau, A. Heinze, H. Weiland, J. Tonry, H. Flewelling, A.
Fitzsimmons, D. Young, B. Stalder. Measurers L. Denneau, A. Heinze, J.
Tonry. 0.5-m f/2.0 Schmidt + CCD.
(U55) Golden Ears Observatory, Maple Ridge (N49.253280 W122.585440)
Canada/BritColumbia.
(Y00) SONEAR Observatory, Oliveira (S20.715082 W44.784960) Brazil.
Observers C. Jacques, E. Pimentel, J. Barros. Measurer C. Jacques. 0.28-m
f/2.2 astrograph + CCD.
(Z80) Northolt Branch Observatory (N51.554661 W0.371920) UK/England.
Observer G. Wells. Measurer D. Bamberger.
(Z84) Calar Alto-Schmidt (N37.223981 W2.548143) Spain. Observer M. Micheli.
Measurers M. Micheli, D. Koschny, L. Conversi, E. Schwab. 0.8-m f/3
Schmidt + CCD.
Orbital elements: 1964-054A = NORAD 00879 = OGO 1
Perigee 2020 Aug 29.86474895 +/- 2.22e-6 TT = 20:45:14.309 (JD 2459091.36474895)
Epoch 2020 Aug 29.5 TT; AMR 0.043396 +/- 0.000242 m2/kg Gray
M 301.25695029103 +/- 0.00030 (J2000 equator)
n 161.05063468013 +/- 0.000238 Peri. 205.73477247 +/- 0.00009
a 72215.1879247 +/- 0.0712 Node 306.78534965 +/- 0.00010
e 0.9108998025 +/- 5.29e-7 Incl. 55.01799277 +/- 0.000058
P3218.80m/2.235d H 30.0 G 0.15 U 7.1
q 6434.38750477 +/- 0.0429 Q 137995.988344 +/- 0.113
From 230 observations 2020 Aug. 26-29; mean residual 2".327
Residuals in arcseconds: 200826 703 .121+ .931- 200827 K19 .085- .568- 200828 T04 .256+ .108- 200826 703 .118- .033- 200827 Z84 .572- .981- 200828 T04 .140+ .166- 200826 I52 .455- .305- 200827 Z84 .298- 1.00- 200828 T04 .211+ .322- 200826 I52 .299- .359- 200827 Z84 .442- 1.23- 200828 T04 .191+ .050- 200826 I52 .253- .183- 200827 Z84 .357- 1.05- 200828 T04 .201+ .278- 200826 I52 .208- .097+ 200827 Z84 .123- .674- 200828 T04 .145+ .081- 200826 U55 .045+ .648+ 200827 Z84 .352- .981- 200828 T04 .209+ .196- 200826 U55 .021- .714+ 200827 Z84 .287- .903- 200828 470 .092+ 1.97+ 200826 U55 .437- .656+ 200827 Z84 .335- .829- 200828 470 .095+ 1.31+ 200826 I52 .188- .435- 200827 Z84 .152- .740- 200828 470 .241+ .548+ 200826 I52 .338- .273- 200827 Z84 .139- .936- 200828 470 .044- .827- 200826 I52 .349- 7.7m- 200827 Z80 .206- 1.60- 200828 470 .095+ 1.80- 200826 I52 .297- .315- 200827 Z80 .218+ .256+ 200829 Y00 .287+ .511- 200826 I52 .067- .516- 200827 Z80 .156+ .328+ 200829 Y00 .100- .736- 200826 I52 .302- .159+ 200827 Z80 .200+ .293+ 200829 Y00 .309- .526- 200826 I52 .151- .479- 200827 Z80 .310+ .157+ 200829 Y00 .316- .403+ 200826 I52 .254- .300- 200827 Z80 .022+ .095+ 200829 Y00 .315+ 1.18- 200826 T05 .500- .511+ 200827 Z80 .066+ .145- 200829 Y00 5.4m+ 1.21- 200826 718 .291- .623+ 200827 Z80 .227+ .194+ 200829 Y00 .196+ 1.06- 200826 T05 .058- .162- 200827 Z80 .103- .350- 200829 Y00 .328+ 1.10- 200826 718 .506- .272+ 200827 Z80 8.4m- .402- 200829 Y00 .639- 2.19- 200826 718 .522- .187- 200827 Z80 .315+ .112+ 200829 Y00 .207+ .936- 200826 718 .144- .626+ 200827 Z80 .516+ .341+ 200829 Y00 .165- 1.66- 200826 718 .509- .110+ 200827 Z80 .339+ .245+ 200829 Y00 .136+ .165- 200826 T05 .103- .240- 200827 Z80 .031- .152+ 200829 Y00 1.29- .927- 200826 T05 .123- .513- 200827 Z80 .165+ .238+ 200829 Y00 .239+ 1.92+ 200826 I52 .125- .624- 200827 Z80 .178+ .361+ 200829 Y00 .410- 2.00- 200826 I52 .214- .318- 200827 Z80 .233+ .124+ 200829 H06 .125+ .810+ 200826 I52 .164- .211- 200827 Z80 .064- .248+ 200829 H06 .069- .471+ 200826 I52 .385- .434- 200828 H06 .210- .728- 200829 H06 .065- .368+ 200826 I52 .021- .072- 200828 H06 .224+ .349+ 200829 H06 .126- 1.04+ 200826 I52 .058- .268- 200828 H06 .441- 1.17- 200829 718 .470- .491+ 200826 I52 .099- .363- 200828 H06 .045+ .205+ 200829 718 .760- .035- 200826 I52 .143- .157- 200828 H06 .353+ .470+ 200829 718 .455- .049- 200826 T04 .337- .517- 200828 718 .292- .102+ 200829 718 .264- .453+ 200826 T04 .044- .372- 200828 718 .150- .846+ 200829 718 1.01- .131- 200826 T04 .184- .518- 200828 718 .218+ .063+ 200829 718 .763- .296+ 200826 T04 .043- .160- 200828 718 .163- .043+ 200829 718 .897- .461- 200826 T04 .046- .063+ 200828 718 .334+ .836+ 200829 718 .269- .504- 200826 T04 .320- .205- 200828 718 .133- .314+ 200829 718 .610- .463+ 200826 F65 .122- .106+ 200828 718 .610- .145+ 200829 718 .679- .048+ 200826 F65 .037- .010- 200828 718 .022+ .903+ 200829 718 .900- .054- 200826 F65 .110- .021+ 200828 718 .029- 1.01+ 200829 718 1.14- .541- 200826 F65 .149- 8.6m+ 200828 718 .021+ .132- 200829 718 1.05- .220- 200826 181 .060- .581- 200828 718 .531- .021- 200829 718 .557- .581- 200826 181 .088+ .456- 200828 718 .089+ .702+ 200829 718 1.00- .627- 200826 181 .127+ .506- 200828 718 .576- .446+ 200829 718 .845- .366- 200826 181 .140+ .591- 200828 718 .099- 1.07+ 200829 718 .813- .585- 200826 181 .041+ .675- 200828 718 .065- .302+ 200829 718 .805- .590- 200826 N88 .460+ .223- 200828 718 .769- .849- 200829 718 .328- .388- 200826 N88 .446+ .518- 200828 718 .153- .870+ 200829 718 .368- .266- 200826 N88 .557+ .015- 200828 718 .260- .138- 200829 718 .954- .930- 200826 N88 .697+ .070+ 200828 718 .038+ .183- 200829 718 1.17- .980- 200826 J69 .160+ .643- 200828 718 .099- .572- 200829 718 .506- .617- 200826 J69 .064- .633- 200828 718 .112- .171- 200829 718 .802- .652+ 200826 J69 .093- .548- 200828 718 .034+ .588- 200829 718 .205+ 1.26- 200826 J69 .208+ .688- 200828 718 .012+ .645- 200829 718 .897- .853- 200826 J69 .050- .585- 200828 718 9.7m- .686- 200829 718 .616- .444- 200826 J69 .153+ .707- 200828 718 .406+ .286+ 200829 718 .858- .913- 200826 G40 .291+ .027+ 200828 718 .084- .466- 200829 T03 .894- .396- 200826 G40 1.07+ 1.00+ 200828 718 .624+ .288- 200829 T03 .465- .671+ 200826 G40 .577+ .231+ 200828 718 .292+ .065- 200829 T03 .691- .467+ 200827 H06 .422+ .264- 200828 718 .190- .229- 200829 T03 .817- .858+ 200827 H06 1.38+ .702+ 200828 718 .360+ .289+ 200829 T03 .607- .264+ 200827 H06 .290+ .283- 200828 I41 1.92+ .321+ 200829 T03 .726- .794+ 200827 H06 .375+ .474+ 200828 718 .311+ .149- 200829 T04 1.05- .324+ 200827 H06 .594+ 1.06- 200828 I41 1.77+ .722- 200829 T04 0.99- .486+ 200827 H06 .345- .204+ 200828 I41 .399+ 1.68+ 200829 T04 .932- .568+ 200827 I52 .193+ 1.45- 200828 I41 .244+ 1.36+ 200829 T04 .582- .206+ 200827 I52 .455+ .548- 200828 I41 2.62+ .168+ 200829 T04 .854- .192+ 200827 I52 .594+ .450- 200828 I41 1.87+ .216- 200829 T04 1.24- .273- 200827 I52 .354+ 1.15- 200828 I52 .210+ .277- 200829 T04 1.31- .315- 200827 K19 .147+ .152- 200828 I52 .206+ .243- 200829 T04 1.20- .110- 200827 K19 .297- .574- 200828 I52 .199+ .733- 200829 470 15.5+ 4.45+ 200827 K19 .341- 1.44- 200828 I52 .189+ .593- 200829 470 33.5+ 5.23+ 200827 K19 1.6m+ .039- 200828 H06 4.91- 18.2+ 200829 470 13.9- 1.10- 200827 K19 .488- 1.95- 200828 H06 3.17- 18.8+ Ephemerides (geocentric): Date (UTC) HH:MM delta mag lon lat alt (km) svel ---- ----------- ------ --- -------- -------- ---------- ----- 2020 08 29 20:00 17976 13.4 128.0758 +54.7936 11612.304 6.231 2020 08 29 20:01 17684 13.3 129.1202 +54.6846 11319.705 6.289 2020 08 29 20:02 17390 13.3 130.2005 +54.5575 11025.701 6.350 2020 08 29 20:03 17094 13.3 131.3174 +54.4108 10730.301 6.412 2020 08 29 20:04 16798 13.3 132.4716 +54.2428 10433.515 6.476 2020 08 29 20:05 16500 13.3 133.6637 +54.0516 10135.358 6.541 2020 08 29 20:06 16200 13.3 134.8945 +53.8353 9835.849 6.609 2020 08 29 20:07 15899 13.3 136.1643 +53.5918 9535.013 6.679 2020 08 29 20:08 15597 13.3 137.4736 +53.3187 9232.879 6.752 2020 08 29 20:09 15294 13.3 138.8228 +53.0135 8929.487 6.826 2020 08 29 20:10 14990 13.3 140.2122 +52.6735 8624.879 6.903 2020 08 29 20:11 14684 13.3 141.6417 +52.2957 8319.110 6.983 2020 08 29 20:12 14377 13.3 143.1116 +51.8768 8012.245 7.065 2020 08 29 20:13 14069 13.3 144.6217 +51.4135 7704.359 7.151 2020 08 29 20:14 13761 13.3 146.1718 +50.9017 7395.542 7.239 2020 08 29 20:15 13451 13.3 147.7617 +50.3374 7085.900 7.331 2020 08 29 20:16 13141 13.3 149.3908 +49.7162 6775.556 7.425 2020 08 29 20:17 12831 13.3 151.0586 +49.0330 6464.656 7.524 2020 08 29 20:18 12520 13.3 152.7645 +48.2827 6153.368 7.625 2020 08 29 20:19 12208 13.3 154.5079 +47.4593 5841.892 7.731 2020 08 29 20:20 11897 13.3 156.2878 +46.5566 5530.457 7.841 2020 08 29 20:21 11587 13.3 158.1036 +45.5678 5219.332 7.954 2020 08 29 20:22 11276 13.4 159.9544 +44.4855 4908.830 8.073 2020 08 29 20:23 10967 13.4 161.8395 +43.3015 4599.315 8.195 2020 08 29 20:24 10660 13.4 163.7581 +42.0073 4291.210 8.322 2020 08 29 20:25 10354 13.5 165.7098 +40.5933 3985.007 8.454 2020 08 29 20:26 10051 13.5 167.6943 +39.0496 3681.277 8.590 2020 08 29 20:27 9751 13.6 169.7114 +37.3651 3380.682 8.731 2020 08 29 20:28 9455 13.7 171.7616 +35.5284 3083.990 8.876 2020 08 29 20:29 9164 13?? 173.8456 +33.5274 2792.087 9.026 2020 08 29 20:30 8878 13?? 175.9647 +31.3494 2505.996 9.180 2020 08 29 20:31 8600 14?? 178.1209 +28.9817 2226.889 9.337 2020 08 29 20:32 8330 14?? 180.3171 +26.4116 1956.107 9.497 2020 08 29 20:33 8070 14?? 182.5568 +23.6269 1695.172 9.658 2020 08 29 20:34 7821 14?? 184.8450 +20.6172 1445.796 9.820 2020 08 29 20:35 7586 14?? 187.1879 +17.3739 1209.881 9.980 2020 08 29 20:36 7366 15?? 189.5931 +13.8925 989.515 10.14 2020 08 29 20:37 7164 15?? 192.0699 +10.1730 786.945 10.29 2020 08 29 20:38 6982 15?? 194.6298 +06.2225 604.530 10.43 2020 08 29 20:39 6823 16?? 197.2864 +02.0560 444.675 10.55 2020 08 29 20:40 6688 16?? 200.0558 -02.3012 309.736 10.66 2020 08 29 20:41 6580 16?? 202.9568 -06.8133 201.904 10.76 2020 08 29 20:42 6500 16?? 206.0109 -11.4334 123.073 10.82 2020 08 29 20:43 6451 16?? 209.2217 -16.0751 74.858 10.43 2020 08 29 20:44 6431 16?? 211.5881 -19.3191 54.853 4.333 2020 08 29 20:45 6414 16?? 212.2538 -20.1989 38.284 1.029 2020 08 29 20:46 6400 16?? 212.3332 -20.3018 24.643 0.485