MPEC 2020-A121 : COMET P/2019 X2 (PANSTARRS)
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M.P.E.C. 2020-A121 Issued 2020 January 12, 23:52 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2019 X2 (PANSTARRS)
This object was reported on 2019 Dec. 31 UT as a possible comet by
R. Weryk on behalf of Pan-STARRS 2 (F52), noting a diffuse 2".4 coma and
10" tail (PA 300). Additional reports of cometary features are as follows:
OC Date Reporter Coma Tail PA Exposures
Q11 Jan. 1 H. Sato 6" 13x60s
F51 Jan. 2 R. Weryk 2" 8" 305 4x45s
691 Jan. 5 A. F. Tubbiolo 20" 310 3x159s
204 Jan. 5 A. Aletti 15" 112x30s
204 Jan. 6 L. Buzzi 12" 25x60s
Observations:
PK19X020 C2019 11 25.57618208 21 46.650+07 56 01.46 22.7 GVEA121F52
PK19X020 C2019 11 25.61797608 21 48.658+07 55 12.20 22.3 GVEA121F52
PK19X020 C2019 11 29.59664908 24 53.598+06 37 08.76 21.0 GVEA121F52
PK19X020 C2019 11 29.61977008 24 54.482+06 36 42.08 21.1 GVEA121F52
PK19X020* C2019 12 04.57856 08 27 59.438+04 58 50.25 21.6 wUEA121F52
PK19X020 C2019 12 04.59134 08 27 59.808+04 58 34.93 21.8 wUEA121F52
PK19X020 C2019 12 04.60415 08 28 00.189+04 58 19.78 21.8 wUEA121F52
PK19X020 C2019 12 04.61682 08 28 00.552+04 58 04.77 22.1 wUEA121F52
PK19X020 C2019 12 20.49568708 31 58.165-00 07 50.11 20.5 GVEA121F51
PK19X020 C2019 12 20.50844008 31 58.111-00 08 04.30 21.6 GVEA121F51
PK19X020 C2019 12 20.52107108 31 58.053-00 08 17.89 20.9 GVEA121F51
PK19X020 C2019 12 20.53373908 31 57.975-00 08 31.86 21.9 GVEA121F51
PK19X020 C2019 12 31.45315608 29 30.366-03 15 26.80 20.59wUEA121F52
PK19X020 C2019 12 31.46533208 29 30.042-03 15 38.13 20.74wUEA121F52
PK19X020 C2019 12 31.47737308 29 29.718-03 15 49.55 20.90wUEA121F52
PK19X020 C2019 12 31.48933308 29 29.368-03 16 00.81 20.65wUEA121F52
PK19X020 KC2019 12 31.95813 08 29 18.15 -03 23 19.8 20.4 RqEA121C10
PK19X020 KC2019 12 31.98652 08 29 17.27 -03 23 47.2 20.2 RqEA121C10
PK19X020 KC2020 01 01.01491 08 29 16.43 -03 24 14.2 20.4 RqEA121C10
PK19X020 pC2020 01 01.08085608 29 14.68 -03 25 15.3 20.9 GVEA121L01
PK19X020 KC2020 01 01.08635808 29 14.54 -03 25 20.8 20.6 GVEA121L01
PK19X020 KC2020 01 01.08953908 29 14.48 -03 25 22.9 20.6 GVEA121L01
PK19X020 IC2020 01 01.09348208 29 14.34 -03 25 27.3 20.7 GVEA121L01
PK19X020 KC2020 01 01.64268 08 29 00.66 -03 33 50.9 19.9 RqEA121Q11
PK19X020 KC2020 01 01.65174 08 29 00.39 -03 33 59.3 qEA121Q11
PK19X020 1C2020 01 01.67103 08 28 59.68 -03 34 07.6 VEA121Q62
PK19X020 1C2020 01 01.67537 08 28 59.56 -03 34 11.7 VEA121Q62
PK19X020 1C2020 01 01.67969 08 28 59.43 -03 34 15.6 20.2 GVEA121Q62
PK19X020 C2020 01 02.49790508 28 37.711-03 46 45.89 20.00GVEA121F51
PK19X020 C2020 01 02.50950708 28 37.365-03 46 56.11 20.46GVEA121F51
PK19X020 C2020 01 02.52111808 28 37.006-03 47 06.53 20.54GVEA121F51
PK19X020 C2020 01 02.53273308 28 36.655-03 47 17.12 20.86GVEA121F51
PK19X020 KC2020 01 04.30404 08 27 45.93 -04 13 16.0 20.4 RoEA121691
PK19X020 KC2020 01 04.31449 08 27 45.60 -04 13 25.6 20.2 RoEA121691
PK19X020 KC2020 01 04.32495 08 27 45.23 -04 13 33.6 20.1 RoEA121691
PK19X020 KC2020 01 05.09585 08 27 21.23 -04 24 32.3 VEA121204
PK19X020 HC2020 01 05.17712 08 27 18.50 -04 25 41.4 20.5 GVEA121204
PK19X020 KC2020 01 05.29527 08 27 15.37 -04 27 18.6 20.0 RoEA121691
PK19X020 KC2020 01 05.31185 08 27 14.78 -04 27 32.5 20.0 RoEA121691
PK19X020 KC2020 01 05.32843 08 27 14.24 -04 27 46.6 20.0 RoEA121691
PK19X020 HC2020 01 06.01658 08 26 52.03 -04 37 20.3 VEA121204
PK19X020 KC2020 01 06.03992 08 26 51.21 -04 37 39.6 20.3 GVEA121204
PK19X020 KC2020 01 06.22723 08 26 45.55 -04 40 12.3 oEA121691
PK19X020 KC2020 01 06.28066 08 26 43.67 -04 40 56.1 oEA121691
PK19X020 KC2020 01 08.46149 08 25 28.08 -05 09 43.6 19.1 RoEA121691
PK19X020 KC2020 01 08.47931 08 25 27.34 -05 09 55.6 19.9 RoEA121691
PK19X020 KC2020 01 09.31127 08 24 57.86 -05 20 27.2 20.2 RoEA121691
PK19X020 KC2020 01 09.33190 08 24 57.04 -05 20 42.6 20.3 RoEA121691
PK19X020 KC2020 01 09.35312 08 24 56.18 -05 20 56.2 20.2 RoEA121691
Observer details:
204 Schiaparelli Observatory. Observers A. Aletti, L. Buzzi. 0.36-m f/6
reflector + CCD, 0.84-m f/3.5 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observers A. F. Tubbiolo, T. H.
Bressi, M. T. Read, R. S. McMillan. 0.9-m f/3 reflector + CCD.
C10 Maisoncelles. Observer J.-F. Soulier. 0.30-m f/3.8 Newtonian reflector +
CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien +
CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Marusic. Measurer
K. Korlevic. 1.0-m f/2.9 reflector + CCD.
Q11 Shinshiro. Observer T. Ikemura. Measurer H. Sato. 0.35-m f/5 reflector +
CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
Orbital elements
P/2019 X2 (PANSTARRS)
Epoch 2019 Dec. 23.0 TT = JDT 2458840.5
T 2019 Dec. 9.30975 TT Bell
q 1.8241035 (2000.0) P Q
n 0.14176560 Peri. 213.55801 -0.22899457 -0.93847400
a 3.6426893 Node 250.85601 +0.94242340 -0.14724900
e 0.4992426 Incl. 15.88125 +0.24372036 -0.31238484
P 6.95
From 48 observations 2019 Nov. 25-2020 Jan. 9, mean residual 0".5.
P/2019 X2 (PANSTARRS)
Epoch 2026 Nov. 16.0 TT = JDT 2461360.5
T 2026 Nov. 15.27754 TT Bell
q 1.8145661 (2000.0) P Q
n 0.14228411 Peri. 213.53871 -0.22848696 -0.93853086
a 3.6338343 Node 250.84701 +0.94255276 -0.14672554
e 0.5006470 Incl. 15.89744 +0.24369653 -0.31246031
P 6.93
From 48 observations 2019 Nov. 25-2020 Jan. 9, mean residual 0".5.
P/2019 X2 (PANSTARRS)
Epoch 2020 May 31.0 TT = JDT 2459000.5
T 2019 Dec. 9.28789 TT Bell
q 1.8240512 (2000.0) P Q
n 0.14181098 Peri. 213.55006 -0.22884100 -0.93851268
a 3.6419122 Node 250.85459 +0.94244860 -0.14709764
e 0.4991501 Incl. 15.88111 +0.24376717 -0.31233994
P 6.95
From 48 observations 2019 Nov. 25-2020 Jan. 9, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2019 12 13 08 31 14.0 +02 13 53 1.0380 1.8244 128.8 24.9 20.7
...
2019 12 28 08 30 42.2 -02 19 34 0.9659 1.8318 140.0 20.2 20.6
...
2020 01 05 08 27 24.4 -04 23 04 0.9432 1.8398 145.5 17.6 20.5
...
2020 01 11 08 23 54.2 -05 40 46 0.9341 1.8476 149.0 15.9 20.5
2020 01 12 08 23 15.3 -05 52 18 0.9332 1.8490 149.5 15.7 20.5
2020 01 13 08 22 35.4 -06 03 25 0.9326 1.8505 149.9 15.4 20.5
...
2020 01 19 08 18 22.2 -07 00 49 0.9329 1.8602 152.1 14.3 20.5
...
2020 01 27 08 12 33.6 -07 51 40 0.9446 1.8755 152.9 13.8 20.6
...
2020 02 11 08 03 46.2 -08 12 26 1.0009 1.9107 148.0 15.9 20.8
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-A121
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