"Pseudo-MPEC" for 2019 OK = S511618 = asassn3
Created 2019 Jul 26 22:37:02 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
This object was initially found by SONEAR in Brazil, with a short arc of three observations, not enough to tell us much except that it had to be close to us. They posted the data as a new object on the NEOCP under their designation, S511618.
Shortly afterward, the ASAS-SN (All-Sky Automated Survey for Supernovae) found a moving object in their images, and posted the data to NEOCP with the designation asassn3. Things were a little confused here. As the name indicates, ASAS-SN focusses on supernovae (and finds a lot of variable stars and some galactic novae). Their data were posted as having come from the observatory codes (711) McDonald Observatory in Texas and (F65) Faulkes Telescope North in Haleakalā, Hawaii, but were not from the telescopes actually at those locations; the ASAS-SN telescopes share domes there. The data were posted to the Possible Comet Confirmation Page even though the object wasn't at all a possible comet. Supernova surveying can be done with large pixels and poor astrometry, but when we see 5" residuals from (711) and (F65), we're usually thinking "bad data".
Neither arc, by itself, looked all that unusual. Put together, they fit into an orbit that would pass us at about 71000 +/- 1000 km in a mere four hours. (The orbital elements after collecting all the data gave a perigee distance of 71359.03 +/- 2.33 km from the center of the earth.)
However, I didn't realize the (711) and (F65) data were actually from ASAS-SN. If I had, the large residuals would have been to be expected; they aren't asteroid astrometry folks. I thought the data were coming from the "usual" McDonald and FTN scopes; coming from them, the data looked suspiciously bad.
So I took the possibility that S511618 and asassn3 were the same object with a big grain of salt. It seemed likely to me that the (711) and (F65) data were just wrong. But I posted a request on MPML for observations on the theory that the best way to find out if the linkage was real was to look for the object in the place you'd expect to see it. (Which would be a relatively small area of sky with a very bright object.)
Very shortly after I posted that request, (F51) PanSTARRS went through their archives and realized they had some data for the object, which firmed up the orbit tremendously and confirmed that the linkage was real. I got an e-mail explaining the situation for the ASAS-SN data from (711) and (F65), so that mystery went away. The object was rather low on the horizon as seen from Europe, but two ISON stations were able to track them (it probably helped that these objects were really bright, as NEOs go.)
We now have radar data for this object from Arecibo, which (as often happens with radar) really firms up the orbit. The Doppler (radial velocity) measurement fits to within 1.2 sigmas; the ranging data fit almost exactly. (Though the radar guys tend to lowball their uncertainties. I really ought to adjust them by about a factor of three to get them to match the sigmas given to optical data.)
If you look at the along-track/cross-track residuals, you'll see some systematic timing errors near perigee, of the sort that often crop up with fast-movers. I'm hoping the stations involved will check their timing by observing GPS/navigation satellites. If they do, and if their timing is reasonably consistent ("hmmm, our clocks are off by -5.4 seconds, and were probably off by the same amount when we observed 2019 OK"), then we should be able to recompute the orbit using corrected times. I hope.
Astrometry: K19O00K C2019 06 28.48696320 39 38.147-19 56 30.33 .50 22.9 GVEO056F51 K19O00K C2019 06 28.49473420 39 38.257-19 56 29.69 .50 22.7 GVEO056F51 K19O00K C2019 06 28.49666720 39 38.312-19 56 29.55 .50 22.7 GVEO056F51 K19O00K C2019 06 28.50443620 39 38.462-19 56 29.22 .50 22.2 GVEO056F51 K19O00K C2019 06 28.50637220 39 38.464-19 56 29.05 .50 22.9 GVEO056F51 K19O00K C2019 06 28.51608020 39 38.628-19 56 28.52 .50 22.6 GVEO056F51 K19O00K C2019 07 07.46783920 42 50.466-19 49 13.96 .50 21.2 GVEO056F51 K19O00K C2019 07 07.48023920 42 50.498-19 49 13.85 .50 21.2 GVEO056F51 K19O00K C2019 07 07.49263920 42 50.520-19 49 13.54 .50 21.2 GVEO056F51 K19O00K C2019 07 07.50505120 42 50.547-19 49 13.23 .50 21.3 GVEO056F51 K19O00K C2019 07 21.57190620 46 26.26 -19 58 27.2 .50 17.01oVEO056T05 K19O00K C2019 07 21.57515320 46 26.18 -19 58 27.4 .50 17.34oVEO056T05 K19O00K C2019 07 21.57936020 46 26.09 -19 58 28.0 .50 17.03oVEO056T05 K19O00K C2019 07 21.58027820 46 26.06 -19 58 27.8 .50 17.33oVEO056T05 K19O00K C2019 07 21.58260920 46 26.03 -19 58 28.4 .50 17.27oVEO056T05 K19O00K C2019 07 21.58692320 46 25.96 -19 58 28.2 .50 17.29oVEO056T05 K19O00K C2019 07 21.59058920 46 25.88 -19 58 28.1 .50 17.20oVEO056T05 K19O00K C2019 07 21.59619620 46 25.80 -19 58 28.7 .50 17.21oVEO056T05 K19O00K C2019 07 24.04935 20 52 20.69 -20 33 17.3 .20 14.7 RqEO056Y00 K19O00K C2019 07 24.05031 20 52 20.95 -20 33 21.0 .20 14.7 RqEO056Y00 K19O00K C2019 07 24.05128 20 52 21.22 -20 33 25.0 .20 14.7 RqEO056Y00 K19O00K C2019 07 24.42498 20 55 45.07 -21 16 47.6 5.0 14.2 ggEO056711 K19O00K C2019 07 24.42620 20 55 46.09 -21 16 59.8 5.0 14.2 ggEO056711 K19O00K C2019 07 24.42742 20 55 47.19 -21 17 09.0 5.0 14.2 ggEO056711 K19O00K C2019 07 24.43590 20 56 47.81 -21 17 21.3 5.0 14.1 ggEO056F65 K19O00K C2019 07 24.43717 20 56 48.71 -21 17 36.7 .50 14.1 ggEO056F65 K19O00K C2019 07 24.43843 20 56 49.87 -21 17 51.2 5.0 14.1 ggEO056F65 K19O00K KC2019 07 24.86482121 26 16.767-24 43 53.23 .50 11.4 GVEO056L28 K19O00K KC2019 07 24.86495921 26 18.502-24 44 05.38 .50 11.5 GVEO056L28 K19O00K KC2019 07 24.86509821 26 20.254-24 44 18.30 .50 11.5 GVEO056L28 K19O00K KC2019 07 24.86523721 26 22.025-24 44 31.48 .50 11.5 GVEO056L28 K19O00K 3C2019 07 24.96026022 03 29.203-29 08 45.00 .50 9.8 GVEO071121 K19O00K 3C2019 07 24.96031822 03 31.907-29 09 01.64 .50 9.9 GVEO071121 K19O00K 3C2019 07 24.96037622 03 34.598-29 09 17.58 .50 9.9 GVEO071121 K19O00K 3C2019 07 24.96043422 03 37.374-29 09 32.76 .50 10.1 GVEO071121 K19O00K 3C2019 07 24.96049222 03 40.221-29 09 49.73 .50 10.0 GVEO071121 K19O00K 3C2019 07 24.96055022 03 42.912-29 10 05.73 .50 10.1 GVEO071121 K19O00K 3C2019 07 24.96095522 04 02.276-29 11 59.18 .50 10.1 GVEO071121 K19O00K 3C2019 07 24.96101322 04 05.101-29 12 15.11 .50 9.8 GVEO071121 K19O00K 3C2019 07 24.96112822 04 10.673-29 12 49.95 .50 9.8 GVEO071121 K19O00K 3C2019 07 24.96118622 04 13.368-29 13 05.90 .50 9.9 GVEO071121 K19O00K 3C2019 07 24.96124422 04 16.182-29 13 22.70 .50 10.1 GVEO071121 K19O00K 3C2019 07 24.96130222 04 19.066-29 13 39.53 .50 10.2 GVEO071121 K19O00K 3C2019 07 24.96136022 04 21.831-29 13 54.60 .50 10.0 GVEO071121 K19O00K 3C2019 07 24.96141822 04 24.623-29 14 10.38 .50 10.2 GVEO071121 K19O00K C2019 07 25.01601 23 36 23.08 -35 32 29.2 .50 9.2 VqEO071L96 K19O00K C2019 07 25.01605 23 36 30.14 -35 32 47.1 .50 9.1 VqEO071L96 K19O00K C2019 07 25.01610 23 36 39.95 -35 33 10.9 .50 9.0 VqEO071L96 K19O00K C2019 07 25.01615 23 36 49.12 -35 33 34.4 .50 8.9 VqEO071L96 K19O00K C2019 07 25.01619 23 36 59.92 -35 34 01.4 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01624 23 37 09.77 -35 34 24.4 .50 9.1 VqEO071L96 K19O00K C2019 07 25.01628 23 37 19.64 -35 34 48.6 .50 9.0 VqEO071L96 K19O00K C2019 07 25.01633 23 37 28.42 -35 35 10.4 .50 9.1 VqEO071L96 K19O00K C2019 07 25.01638 23 37 37.83 -35 35 32.7 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01642 23 37 48.42 -35 35 57.8 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01649 23 38 02.07 -35 36 30.8 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01653 23 38 09.52 -35 36 50.4 .50 9.2 VqEO071L96 K19O00K C2019 07 25.01657 23 38 19.68 -35 37 14.3 .50 9.4 VqEO071L96 K19O00K C2019 07 25.01662 23 38 28.87 -35 37 34.3 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01667 23 38 38.95 -35 37 59.7 .50 9.6 VqEO071L96 K19O00K C2019 07 25.01672 23 38 48.86 -35 38 22.7 .50 9.4 VqEO071L96 K19O00K C2019 07 25.01677 23 38 58.63 -35 38 45.7 .50 9.6 VqEO071L96 K19O00K C2019 07 25.01682 23 39 08.36 -35 39 09.8 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01685 23 39 17.85 -35 39 32.5 .50 9.4 VqEO071L96 K19O00K C2019 07 25.01690 23 39 26.85 -35 39 53.0 .50 9.2 VqEO071L96 K19O00K C2019 07 25.01697 23 39 41.13 -35 40 27.1 .50 9.4 VqEO071L96 K19O00K C2019 07 25.01700 23 39 48.99 -35 40 46.3 .50 9.4 VqEO071L96 K19O00K C2019 07 25.01705 23 39 58.38 -35 41 08.8 .50 9.3 VqEO071L96 K19O00K C2019 07 25.01709 23 40 08.56 -35 41 32.8 .50 9.4 VqEO071L96 K19O00K R2019 07 25.740972 - 38716170 2380 251 JPLRS251 K19O00K r2019 07 25.740972 3000 251 JPLRS251 K19O00K R2019 07 25.750694 970996628 2380 251 JPLRS251 K19O00K r2019 07 25.750694 4000 251 JPLRS251 K19O00K R2019 07 25.759028 982726159 2380 251 JPLRS251 K19O00K r2019 07 25.759028 500 251 JPLRS251 Station data: (121) Chuguevskaya Station (N49.642940 E36.936900) Ukraine. 0.70-m f/4 reflector. (251) Arecibo (N18.343444 W66.753080) US/Puerto Rico. 305-m Arecibo Observatory. (711) McDonald Observatory, Fort Davis (N30.671481 W104.021500) US/Texas. 0.76-m f/3.0 reflector. (F51) Pan-STARRS 1, Haleakala (N20.707235 W156.255910) US/Hawaii. Observers N. Primak, A. Schultz, S. Watters, J. Thiel, T. Goggia. Measurer PS1 Science Consortium. 1.8-m Ritchey-Chrétien + CCD. (F65) Haleakala-Faulkes Telescope North (N20.707009 W156.257496) US/Hawaii. 2.0-m Faulkes Telescope North. (L28) ISON-Castelgrande Observatory (N40.817569 E15.463390) Italy. (L96) ISON-Byurakan Observatory (N40.347550 E44.274500) Armenia. (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. (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. Orbital elements: 2019 OK Perigee 2019 Jul 25.057189 +/- 3.5e-6 TT = 1:22:21 (JD 2458689.557189) Epoch 2019 Jul 25.0 TT = JDT 2458689.5 Gray q 71359.031446 +/- 2.33 (J2000 equator) H 23.3 G 0.15 Peri. 308.5868983 +/- 0.00007 Node 97.8926115 +/- 0.000045 e 106.765946282 +/- 0.00424 Incl. 33.1283172 +/- 0.00017 From 72 observations 2019 June 28-July 25; mean residual 9".796 Orbital elements (heliocentric, before flyby): 2019 OK Perihelion 2019 Sep 10.285086 +/- 0.000139 TT = 6:50:31 (JD 2458736.785086) Epoch 2019 Jul 20.0 TT = JDT 2458684.5 Earth MOID: 0.0003 Ve: 0.0334 M 341.0383181174 +/- 0.00039 Ma: 0.0247 Gray n 0.3626594790 +/- 6.55e-6 Peri. 104.2568030 +/- 0.00010 a 1.9474666400 +/- 2.34e-5 Node 302.2614435 +/- 0.000040 e 0.762021502 +/- 3.44e-6 Incl. 1.4009783 +/- 0.000034 P 2.72/992.65d H 23.3 G 0.15 U 4.7 q 0.4634551848 +/- 1.26e-6 Q 3.4314780953 +/- 4.8e-5 From 72 observations 2019 June 28-July 25; mean residual 9".796 Orbital elements (heliocentric, after flyby): 2019 OK Perihelion 2019 Sep 10.525526 +/- 0.000149 TT = 12:36:45 (JD 2458737.025526) Epoch 2019 Aug 5.0 TT = JDT 2458700.5 Earth MOID: 0.0003 Ve: 0.0373 M 345.8910781573 +/- 0.00032 Ma: 0.0191 Gray n 0.3862756661 +/- 7.44e-6 Peri. 106.1032971 +/- 0.00015 a 1.8672586608 +/- 2.4e-5 Node 302.0429674 +/- 0.000030 e 0.757145604 +/- 3.52e-6 Incl. 2.0898872 +/- 0.000051 P 2.55/931.96d H 23.3 G 0.15 U 4.8 q 0.4534719730 +/- 1.07e-6 Q 3.2810453485 +/- 4.87e-5 From 72 observations 2019 June 28-July 25; mean residual 9".796
Residuals in arcseconds: 190628 F51 .140+ .060- 190724 F65 3.46+ .361- 190725 L96 10.1- 1.12+ 190628 F51 .188- .130+ 190724 F65 2.10+ 3.58- 190725 L96 21.4+ 5.75- 190628 F51 .122+ .156+ 190724 F65 4.43+ 5.96- 190725 L96 16.2+ 3.61- 190628 F51 .373+ .016+ 190724 L28 .127- .340+ 190725 L96 36.1+ 7.70- 190628 F51 .062- .066+ 190724 L28 .199- .823+ 190725 L96 17.5+ 4.39- 190628 F51 .064- .020- 190724 L28 .245- .644+ 190725 L96 6.27+ 1.59- 190707 F51 .037+ .038+ 190724 L28 .067- .221+ 190725 L96 34.5+ 6.62- 190707 F51 .054+ .031- 190724 121 9.51- 4.45+ 190725 L96 24.1+ 4.55- 190707 F51 .033- .034+ 190724 121 10.1- 4.09+ 190725 L96 13.7+ 4.12- 190707 F51 .028- .033+ 190724 121 11.0- 4.45+ 190725 L96 36.2+ 8.00- 190721 T05 .186+ .172+ 190724 121 10.8- 5.59+ 190725 L96 21.3+ 2.99- 190721 T05 .072+ .203+ 190724 121 9.69- 4.95+ 190725 L96 17.1+ 3.41- 190721 T05 .056+ .126- 190724 121 10.7- 5.29+ 190725 L96 10.6+ 1.44- 190721 T05 .103- .129+ 190724 121 11.2- 6.35+ 190725 L96 2.16+ .505+ 190721 T05 .129+ .337- 190724 121 10.8- 6.87+ 190725 L96 6.96- 1.33+ 190721 T05 .293+ .086+ 190724 121 10.4- 4.69+ 190725 L96 32.0+ 6.42- 190721 T05 .081+ .351+ 190724 121 11.8- 5.24+ 190725 L96 13.6+ 2.03- 190721 T05 .236+ .038- 190724 121 11.7- 4.95+ 190725 L96 8.08+ 1.32- 190724 Y00 .295- .122+ 190724 121 10.7- 4.64+ 190725 L96 26.8+ 5.61- 190724 Y00 .251- .137+ 190724 121 11.3- 6.11+ 190725 L96 12.6+ 3.28- 190724 Y00 .097- .109- 190724 121 11.6- 6.88+ 190725 L96 33.5+ 7.43- 190724 711 4.75+ 2.16- 190725 L96 21.8+ 4.23- 190725 251 ---- 0035+ 190724 711 5.84+ 4.86- 190725 L96 8.19+ 1.96- 190725 251 0014+ ---- 190724 711 7.97+ 4.54- 190725 L96 3.03+ .561- 190725 251 0000+ ----Residuals in seconds along-track and arcseconds cross-track: 190628 F51 +043s .091+ 190724 F65 +017s 2.01- 190725 L96 -.34s .901+ 190628 F51 -053s .171- 190724 F65 +023s 1.31+ 190725 L96 +.75s 1.41+ 190628 F51 +054s .122- 190724 F65 +043s 1.56+ 190725 L96 +.56s .358+ 190628 F51 +128s .078+ 190724 L28 -.12s .241- 190725 L96 +1.2s .468+ 190628 F51 -015s .079- 190724 L28 -.25s .633- 190725 L96 +.61s .885+ 190628 F51 -024s .003+ 190724 L28 -.23s .453- 190725 L96 +.22s .333+ 190707 F51 +108s .025- 190724 L28 -72ms .163- 190725 L96 +1.2s .232- 190707 F51 +079s .053+ 190724 121 -1.3s .137- 190725 L96 +.82s .213- 190707 F51 -015s .047- 190724 121 -1.4s .448+ 190725 L96 +.48s 1.39+ 190707 F51 +5.9s .043- 190724 121 -1.5s .470+ 190725 L96 +1.2s .849+ 190721 T05 -057s .125+ 190724 121 -1.5s .655- 190725 L96 +.72s 1.18- 190721 T05 -031s .182+ 190724 121 -1.4s .526- 190725 L96 +.58s .053+ 190721 T05 -8.3s .135- 190724 121 -1.5s .436- 190725 L96 +.35s .619- 190721 T05 +022s .147+ 190724 121 -1.6s 1.19- 190725 L96 +67ms .909- 190721 T05 -018s .356- 190724 121 -1.6s 1.85- 190725 L96 -.23s .025+ 190721 T05 -098s .030+ 190724 121 -1.4s .009- 190725 L96 +1.1s .191+ 190721 T05 -048s .332+ 190724 121 -1.6s .066+ 190725 L96 +.46s .608- 190721 T05 -088s .074- 190724 121 -1.6s .281+ 190725 L96 +.27s .244- 190724 Y00 -4.7s .127+ 190724 121 -1.4s .152+ 190725 L96 +.90s .424+ 190724 Y00 -4.4s .086+ 190724 121 -1.6s .938- 190725 L96 +.43s .843+ 190724 Y00 +.17s .145+ 190724 121 -1.7s 1.52- 190725 L96 +1.1s .960+ 190724 711 +033s 1.04- 190725 L96 +.75s .175- 190725 251 ---- +1.2 190724 711 +049s .517+ 190725 L96 +.29s .299+ 190725 251 +0.4 ---- 190724 711 +059s .973- 190725 L96 +.10s .049- 190725 251 -0.0 ---- Ephemerides (geocentric): Date (UTC) HH RA Dec delta elong mag " sig PA ---- -------- -------------- ----------- ----- ----- --- -------- 2019 07 23 00 20 48 05.873 -20 07 16.34 .02890 170.4 16.3 .091 124 2019 07 23 01 20 48 10.452 -20 07 48.38 .02831 170.4 16.3 .089 124 2019 07 23 02 20 48 15.221 -20 08 21.76 .02773 170.4 16.2 .088 125 2019 07 23 03 20 48 20.191 -20 08 56.58 .02714 170.5 16.2 .086 125 2019 07 23 04 20 48 25.377 -20 09 32.93 .02656 170.5 16.1 .084 125 2019 07 23 05 20 48 30.792 -20 10 10.91 .02597 170.5 16.1 .083 125 2019 07 23 06 20 48 36.454 -20 10 50.64 .02539 170.5 16.0 .081 125 2019 07 23 07 20 48 42.378 -20 11 32.24 .02480 170.5 16.0 .079 125 2019 07 23 08 20 48 48.586 -20 12 15.84 .02422 170.5 15.9 .077 125 2019 07 23 09 20 48 55.097 -20 13 01.59 .02363 170.6 15.9 .074 125 2019 07 23 10 20 49 01.935 -20 13 49.66 .02305 170.6 15.8 .072 125 2019 07 23 11 20 49 09.126 -20 14 40.21 .02246 170.6 15.7 .070 125 2019 07 23 12 20 49 16.698 -20 15 33.46 .02188 170.6 15.7 .067 125 2019 07 23 13 20 49 24.683 -20 16 29.62 .02129 170.6 15.6 .065 125 2019 07 23 14 20 49 33.116 -20 17 28.93 .02070 170.6 15.6 .062 125 2019 07 23 15 20 49 42.036 -20 18 31.67 .02012 170.6 15.5 .059 125 2019 07 23 16 20 49 51.488 -20 19 38.15 .01953 170.6 15.4 .056 126 2019 07 23 17 20 50 01.521 -20 20 48.70 .01895 170.6 15.4 .053 126 2019 07 23 18 20 50 12.191 -20 22 03.71 .01836 170.6 15.3 .049 126 2019 07 23 19 20 50 23.561 -20 23 23.62 .01778 170.6 15.2 .046 126 2019 07 23 20 20 50 35.703 -20 24 48.93 .01719 170.6 15.2 .042 127 2019 07 23 21 20 50 48.699 -20 26 20.19 .01661 170.6 15.1 .037 127 2019 07 23 22 20 51 02.643 -20 27 58.06 .01602 170.6 15.0 .033 128 2019 07 23 23 20 51 17.643 -20 29 43.27 .01544 170.5 14.9 .028 128 2019 07 24 00 20 51 33.826 -20 31 36.68 .01485 170.5 14.8 .023 130 2019 07 24 01 20 51 51.337 -20 33 39.29 .01427 170.5 14.7 .018 132 2019 07 24 02 20 52 10.348 -20 35 52.27 .01368 170.4 14.7 .012 137 2019 07 24 03 20 52 31.061 -20 38 16.98 .01310 170.4 14.6 5.7m 154 2019 07 24 04 20 52 53.716 -20 40 55.05 .01251 170.3 14.5 3.7m 69 2019 07 24 05 20 53 18.600 -20 43 48.40 .01193 170.3 14.4 .010 106 2019 07 24 06 20 53 46.062 -20 46 59.38 .01134 170.2 14.3 .019 113 2019 07 24 07 20 54 16.525 -20 50 30.81 .01076 170.1 14.1 .028 116 2019 07 24 08 20 54 50.509 -20 54 26.14 .01017 170.0 14.0 .038 118 2019 07 24 09 20 55 28.664 -20 58 49.67 .00959 169.9 13.9 .049 119 2019 07 24 10 20 56 11.809 -21 03 46.78 .00901 169.8 13.8 .062 120 2019 07 24 11 20 57 00.992 -21 09 24.30 .00842 169.6 13.6 .076 120 2019 07 24 12 20 57 57.579 -21 15 51.07 .00784 169.4 13.5 .092 120 2019 07 24 13 20 59 03.376 -21 23 18.67 .00725 169.2 13.3 .111 121 2019 07 24 14 21 00 20.830 -21 32 02.63 997681 168.9 13.1 .132 121 2019 07 24 15 21 01 53.340 -21 42 24.21 910359 168.6 13.0 .156 121 2019 07 24 16 21 03 45.760 -21 54 53.34 823083 168.2 12.8 .184 121 2019 07 24 17 21 06 05.280 -22 10 13.49 735873 167.6 12.5 .217 121 2019 07 24 18 21 09 03.008 -22 29 30.19 648755 166.9 12.3 .257 122 2019 07 24 19 21 12 57.054 -22 54 26.86 561773 166.0 12.0 .305 122 2019 07 24 20 21 18 19.021 -23 27 56.15 475004 164.7 11.7 .363 122 2019 07 24 21 21 26 09.295 -24 15 07.16 388596 162.9 11.3 .430 122 2019 07 24 22 21 38 38.672 -25 26 02.52 302864 159.9 10.9 .496 122 2019 07 24 23 22 01 27.688 -27 22 04.17 218624 154.5 10.3 .492 124 2019 07 25 00 22 54 11.444 -30 44 17.56 138673 142.6 9.7 .231 39 2019 07 25 01 01 42 18.202 -31 52 31.88 77823 107.1 9.5 4.85 76 2019 07 25 02 05 48 52.229 -06 53 49.33 91221 44.9 13?? 7.19 55 2019 07 25 03 07 14 12.250 +06 52 41.14 161277 19.7 19?? 3.62 54 2019 07 25 04 07 46 03.098 +11 45 58.30 243057 10.7 25?? 2.25 55 2019 07 25 05 08 02 02.972 +14 05 09.27 327868 6.6 32?? 1.63 56 2019 07 25 06 08 11 35.206 +15 25 00.99 413837 4.5 38?? 1.30 57 2019 07 25 07 08 17 54.028 +16 16 30.53 500362 3.5 43?? 1.09 57 2019 07 25 08 08 22 22.975 +16 52 22.43 587193 3.2 45?? .952 57 2019 07 25 09 08 25 43.669 +17 18 45.20 674209 3.3 45?? .853 57 2019 07 25 10 08 28 19.112 +17 38 57.35 761347 3.4 44?? .778 58 2019 07 25 11 08 30 23.033 +17 54 54.98 848567 3.7 43?? .720 58 2019 07 25 12 08 32 04.125 +18 07 50.42 935847 3.9 42?? .674 58 2019 07 25 13 08 33 28.159 +18 18 31.02 .00684 4.1 42?? .638 58 2019 07 25 14 08 34 39.113 +18 27 29.06 .00742 4.3 41?? .606 58 2019 07 25 15 08 35 39.817 +18 35 07.31 .00801 4.4 41?? .580 59 2019 07 25 16 08 36 32.342 +18 41 42.25 .00859 4.5 40?? .557 59 2019 07 25 17 08 37 18.236 +18 47 26.15 .00918 4.7 40?? .538 59