MPEC 2021-K10 : 2021 JC9
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M.P.E.C. 2021-K10 Issued 2021 May 17, 00:33 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
2021 JC9
Observations:
K21J09C C2021 05 13.53558915 59 04.082+32 15 05.37 20.71GVEK010F51
K21J09C C2021 05 13.61889915 58 24.116+31 48 56.26 21.22GVEK010F51
K21J09C* C2021 05 14.35508 15 53 11.09 +27 40 04.8 20.3 GVEK010U68
K21J09C C2021 05 14.35842 15 53 09.34 +27 38 50.9 20.3 GVEK010U68
K21J09C C2021 05 14.38566 15 52 54.98 +27 28 47.1 20.2 GVEK010U68
K21J09C C2021 05 14.38900 15 52 53.15 +27 27 33.4 20.2 GVEK010U68
K21J09C C2021 05 15.36638 15 45 01.86 +20 44 21.4 19.8 GVEK010U68
K21J09C C2021 05 15.36929 15 45 00.18 +20 43 01.4 19.8 GVEK010U68
K21J09C C2021 05 15.37762515 45 03.625+20 40 05.77 18.82GVEK010F51
K21J09C C2021 05 15.38747 15 44 49.54 +20 34 38.4 20.3 GVEK010U68
K21J09C C2021 05 15.39038 15 44 47.86 +20 33 18.5 20.3 GVEK010U68
K21J09C C2021 05 16.34634915 36 13.93 +12 26 51.6 18.9 GVEK010H01
K21J09C C2021 05 16.35048015 36 11.27 +12 24 33.0 19.8 GVEK010H01
K21J09C C2021 05 16.35978615 36 05.26 +12 19 20.0 19.7 GVEK010H01
K21J09C C2021 05 16.36689715 36 00.70 +12 15 20.3 18.8 GVEK010H01
K21J09C C2021 05 16.37862715 36 04.600+12 09 37.68 19.00GVEK010F51
K21J09C C2021 05 16.78767415 32 01.28 +08 10 36.6 19.5 rVEK010N51
K21J09C C2021 05 16.79458315 31 56.57 +08 06 26.4 19.5 rVEK010N51
K21J09C C2021 05 16.80057915 31 52.50 +08 02 49.0 19.5 rVEK010N51
K21J09C C2021 05 16.80839115 31 47.18 +07 58 05.1 19.5 rVEK010N51
K21J09C 1C2021 05 16.84308 15 31 36.19 +07 35 56.0 19.1 VVEK010033
K21J09C 1C2021 05 16.84337 15 31 36.01 +07 35 45.3 19.3 VVEK010033
K21J09C 1C2021 05 16.84394 15 31 35.64 +07 35 24.6 19.9 VVEK010033
K21J09C KC2021 05 16.90463415 30 58.64 +06 58 40.4 19.4 GVEK010I93
K21J09C KC2021 05 16.90709415 30 56.97 +06 57 10.5 18.8 GVEK010I93
K21J09C KC2021 05 16.91401315 30 52.38 +06 52 55.2 18.8 GVEK010I93
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
N51 GROWTH India Telescope, IAO, Hanle. Observers K. Sharma, H. Kumar, J.
Stanzin, V. Bhalerao, G. C. Anupama, S. Barway. Measurer K. Sharma.
0.70-m f/6.5 Corrected Dall-Kirkham + CCD.
U68 JPL SynTrack Robotic Telescope, Auberry. Observers N. Saini, C. Zhai, R.
Trahan, M. Zhan, M. Shao. 0.28-m f/2.2 Schmidt + CCD.
Orbital elements:
2021 JC9 Earth MOID = 0.0319 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 268.97793 (2000.0) P Q
n 0.62858934 Peri. 171.54417 -0.64256881 +0.69221889
a 1.3496610 Node 57.73776 -0.72376897 -0.40758601
e 0.2272805 Incl. 22.86257 -0.25152296 -0.59557254
P 1.57 H 25.38 G 0.15 U 7
Residuals in seconds of arc
210513 F51 0.0 0.0 210515 U68 0.2- 0.3- 210516 N51 0.3+ 1.0-
210513 F51 0.4- 0.4- 210515 U68 0.0 0.5+ 210516 N51 0.1+ 1.3-
210514 U68 0.0 0.6+ 210516 H01 0.0 0.1- 210516 033 0.0 0.2+
210514 U68 0.2+ 0.3+ 210516 H01 0.0 0.0 210516 033 0.1+ 0.0
210514 U68 0.7+ 0.4- 210516 H01 0.1- 0.0 210516 033 0.0 0.1+
210514 U68 0.2- 0.2+ 210516 H01 0.0 0.0 210516 I93 0.4+ 0.0
210515 U68 0.0 0.2- 210516 F51 0.0 0.1+ 210516 I93 0.2- 0.6+
210515 U68 0.3+ 0.0 210516 N51 0.5+ 1.0- 210516 I93 0.1- 0.1+
210515 F51 0.3- 0.1- 210516 N51 0.3+ 1.1-
Ephemeris:
2021 JC9 a,e,i = 1.35, 0.23, 23 q = 1.0429
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 17 17 03 43.0 +60 42 08 0.2243 1.0601 98.4 69.5 24.7
...
2021 05 02 16 46 47.3 +55 34 02 0.1256 1.0453 104.0 69.3 23.4
...
2021 05 10 16 19 50.5 +44 49 38 0.07232 1.0429 115.5 60.9 21.9
...
2021 05 16 15 39 30.6 +15 35 38 0.03940 1.0437 145.3 33.5 19.8
2021 05 17 15 29 55.3 +06 02 43 0.03614 1.0441 154.7 24.5 19.4
2021 05 18 15 19 14.1 -05 01 20 0.03414 1.0445 164.8 14.7 19.0
...
2021 05 24 13 45 52.3 -60 13 30 0.05055 1.0482 133.7 44.3 20.7
...
2021 06 01 10 50 01.4 -75 55 27 0.1013 1.0565 112.2 62.7 22.8
...
2021 06 16 08 23 24.1 -77 11 53 0.2027 1.0814 103.5 66.0 24.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-K10
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