MPEC 2021-H14 : 2021 GC13
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M.P.E.C. 2021-H14 Issued 2021 April 16, 15:06 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 GC13
Observations:
K21G13C C2021 04 13.23995012 42 34.47 +29 48 55.3 UEH014I41
K21G13C C2021 04 13.27078212 49 21.37 +27 22 24.8 UEH014I41
K21G13C C2021 04 13.27112912 49 25.68 +27 20 49.2 UEH014I41
K21G13C* C2021 04 13.33272013 01 32.41 +22 35 17.1 17.33RUEH014I41
K21G13C C2021 04 13.33306713 01 36.18 +22 33 42.3 17.33RUEH014I41
K21G13C C2021 04 13.33318313 01 37.65 +22 33 06.8 17.02RUEH014I41
K21G13C C2021 04 13.33353013 01 41.34 +22 31 35.2 17.02RUEH014I41
K21G13C KC2021 04 15.32201 14 55 51.34 -24 30 29.1 19.6 GVEH014W94
K21G13C KC2021 04 15.32776 14 55 54.59 -24 32 14.9 18.7 GVEH014W94
K21G13C KC2021 04 15.33339 14 55 57.73 -24 33 56.1 18.7 GVEH014W94
K21G13C KC2021 04 15.36715 14 56 17.25 -24 43 49.6 19.3 GVEH014W95
K21G13C KC2021 04 15.37242 14 56 20.49 -24 45 20.1 19.7 GVEH014W95
K21G13C KC2021 04 15.37772 14 56 23.74 -24 46 50.1 VEH014W95
K21G13C KC2021 04 15.41844214 58 28.85 -24 53 15.8 20.1 GVEH014474
K21G13C KC2021 04 15.41967814 58 29.67 -24 53 39.8 20.2 GVEH014474
K21G13C KC2021 04 15.42091514 58 30.45 -24 54 05.0 20.6 GVEH014474
K21G13C KC2021 04 15.42215114 58 31.34 -24 54 29.2 20.3 GVEH014474
K21G13C KC2021 04 16.61366815 09 21.77 -28 55 07.2 21.1 GVEH014474
K21G13C KC2021 04 16.61606515 09 22.22 -28 55 25.1 21.0 GVEH014474
K21G13C KC2021 04 16.61846115 09 22.68 -28 55 44.6 21.0 GVEH014474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
I41 Palomar Mountain--ZTF. Observers B. T. Bolin, V. Bhalerao, Y.-L. Cheng,
C. M. Copperwheat, K. P. Deshmukh, C.-Y. Hsu, Z.-Y. Lin, J. Purdum, S.
Royle, K. Sharma, C. Zhai, Z. T. F. Collaboration. Measurers B. T. Bolin,
D. A. Duev, H.-W. Lin, F. J. Masci. 1.2-m f/2.4 Schmidt.
W94 MAP, San Pedro de Atacama. Observers A. Maury, G. Attard. Measurers A.
Maury, G. Attard, D. Parrott. 0.28-m f/2.2 Schmidt + CCD.
W95 Observatorio Panameno, San Pedro de Atacama. Observers A. Maury, G.
Attard, J. Fabrega. Measurers A. Maury, G. Attard, D. Parrott. 0.40-m
f/3.8 reflector + CCD.
Orbital elements:
2021 GC13 Earth MOID = 0.0014 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 312.58245 (2000.0) P Q
n 0.56030942 Peri. 139.56868 -0.96183950 -0.27271705
a 1.4571942 Node 24.63198 +0.23533476 -0.86584045
e 0.3506315 Incl. 3.04501 +0.13957908 -0.41945884
P 1.76 H 29.13 G 0.15 U 6
Residuals in seconds of arc
210413 I41 0.1+ 0.5+ 210415 W94 0.1- 0.5- 210415 474 0.2- 0.1+
210413 I41 0.1- 0.5- 210415 W94 0.5+ 0.8- 210415 474 (0.9- 0.7-)
210413 I41 (1.3- 2.4+) 210415 W94 0.1+ 0.3+ 210415 474 0.0 0.8-
210413 I41 0.3+ 0.3+ 210415 W95 2.0- 2.2+ 210416 474 0.3+ 0.0
210413 I41 0.2- 0.2- 210415 W95 1.4- 2.0+ 210416 474 0.1+ 0.7+
210413 I41 (2.5+ 4.2-) 210415 W95 1.3- 2.0+ 210416 474 0.1+ 0.4-
210413 I41 (0.9+ 1.5-) 210415 474 0.0 0.2-
Ephemeris:
2021 GC13 a,e,i = 1.46, 0.35, 3 q = 0.9463
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 17 03 19 03.7 +34 00 37 0.1070 0.9480 61.1 113.2 28.5
...
2021 04 01 03 34 14.4 +36 26 23 0.04775 0.9698 51.0 126.9 27.9
...
2021 04 09 03 53 40.4 +40 53 46 0.01635 0.9909 49.3 130.0 25.9
...
2021 04 15 14 50 46.6 -22 29 24 0.0078251.0105 157.3 22.5 19.7
2021 04 16 15 04 30.7 -27 19 57 0.01166 1.0139 152.9 26.8 20.7
2021 04 17 15 11 48.9 -29 43 30 0.01555 1.0174 151.1 28.4 21.4
...
2021 04 23 15 25 00.6 -33 46 51 0.03927 1.0401 151.5 27.4 23.4
...
2021 05 01 15 27 09.5 -34 31 17 0.07182 1.0739 156.9 21.6 24.6
...
2021 05 16 15 24 41.0 -33 39 18 0.1387 1.1458 165.3 12.9 25.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-H14
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