MPEC 2021-G123 : 2021 GD5
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M.P.E.C. 2021-G123 Issued 2021 April 10, 11:15 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 GD5
Observations:
K21G05D* C2021 04 08.54758113 24 38.95 +22 15 30.1 17.3 GVEG123381
K21G05D C2021 04 08.54768513 24 37.87 +22 15 14.0 18.0 GVEG123381
K21G05D C2021 04 08.57737313 18 52.45 +20 50 01.1 VEG123381
K21G05D C2021 04 08.57744213 18 51.86 +20 49 50.6 VEG123381
K21G05D C2021 04 08.59263913 15 56.77 +20 05 45.9 17.7 GVEG123381
K21G05D C2021 04 08.59269713 15 55.99 +20 05 33.8 18.2 GVEG123381
K21G05D C2021 04 08.62110013 10 32.05 +18 42 21.7 17.9 GVEG123381
K21G05D C2021 04 08.62115713 10 31.26 +18 42 11.7 17.2 GVEG123381
K21G05D C2021 04 08.63485013 07 56.84 +18 01 45.2 17.4 GVEG123381
K21G05D C2021 04 08.63491913 07 56.25 +18 01 33.8 18.3 GVEG123381
K21G05D C2021 04 08.64979213 05 09.52 +17 17 26.4 VEG123381
K21G05D C2021 04 08.64986113 05 08.95 +17 17 15.0 VEG123381
K21G05D C2021 04 08.69278912 57 17.15 +15 09 15.7 17.8 GVEG123381
K21G05D C2021 04 08.69284712 57 16.48 +15 09 03.5 17.7 GVEG123381
K21G05D C2021 04 08.69941012 56 05.55 +14 49 26.1 18.0 GVEG123381
K21G05D C2021 04 08.69946812 56 05.01 +14 49 16.7 18.1 GVEG123381
K21G05D C2021 04 08.71946812 52 31.19 +13 49 29.7 17.7 GVEG123381
K21G05D C2021 04 08.71953712 52 30.40 +13 49 17.1 18.3 GVEG123381
K21G05D KC2021 04 08.78093 12 43 11.83 +10 44 26.3 17.5 RoEG123K88
K21G05D KC2021 04 08.78162 12 43 04.78 +10 42 24.4 17.2 RoEG123K88
K21G05D KC2021 04 08.78255 12 42 55.41 +10 39 40.9 17.5 RoEG123K88
K21G05D 1C2021 04 08.81562 12 37 26.26 +09 02 18.2 18.2 VVEG123033
K21G05D 1C2021 04 08.81580 12 37 24.48 +09 01 46.9 18.4 VVEG123033
K21G05D 1C2021 04 08.81598 12 37 22.66 +09 01 14.8 19.2 VVEG123033
K21G05D 1C2021 04 08.81615 12 37 20.94 +09 00 44.5 18.5 VVEG123033
K21G05D KC2021 04 08.81889912 36 55.70 +08 53 45.0 17.9 GVEG123595
K21G05D KC2021 04 08.82090 12 36 36.30 +08 47 10.0 17.7 GVEG123A17
K21G05D KC2021 04 08.82116012 36 33.35 +08 47 11.5 18.0 GVEG123595
K21G05D KC2021 04 08.82652 12 35 40.97 +08 30 53.1 18.0 GVEG123A17
K21G05D KC2021 04 08.83352 12 34 32.32 +08 10 37.4 17.7 GVEG123A17
K21G05D KC2021 04 08.83714012 33 56.09 +08 00 55.7 17.8 GVEG123595
K21G05D KC2021 04 08.83807 12 33 47.93 +07 57 29.6 17.6 GVEG123A17
K21G05D KC2021 04 08.83826812 33 45.01 +07 57 40.9 17.9 GVEG123595
K21G05D KC2021 04 08.83935512 33 37.10 +07 54 31.8 17.8 GVEG123203
K21G05D KC2021 04 08.85548412 31 00.24 +07 08 09.4 18.0 GVEG123203
K21G05D KC2021 04 08.85843212 30 38.27 +06 59 57.8 18.5 GXEG123958
K21G05D NC2021 04 08.86042312 30 09.64 +06 54 06.7 17.8 GVEG123L01
K21G05D KC2021 04 08.86146412 30 09.07 +06 51 16.5 18.2 GXEG123958
K21G05D NC2021 04 08.86170312 29 57.29 +06 50 27.1 17.6 GVEG123L01
K21G05D KC2021 04 08.86462112 29 32.07 +06 42 01.3 17.8 GVEG123203
K21G05D KC2021 04 08.87471712 28 02.14 +06 13 32.3 18.2 GXEG123958
K21G05D KC2021 04 08.87965112 27 05.10 +05 59 21.0 17.8 GVEG123L01
K21G05D KC2021 04 08.88029412 26 58.98 +05 57 31.9 17.7 GVEG123L01
K21G05D KC2021 04 08.88094512 26 52.78 +05 55 41.1 18.0 GVEG123L01
K21G05D KC2021 04 08.89427912 24 46.35 +05 18 02.2 18.2 GVEG123L01
K21G05D KC2021 04 08.89621612 24 28.07 +05 12 35.4 18.3 GVEG123L01
K21G05D KC2021 04 08.90003112 23 55.49 +05 01 45.6 18.0 GVEG123204
K21G05D KC2021 04 08.90508112 23 08.12 +04 47 36.2 VEG123204
K21G05D KC2021 04 08.91230312 22 00.71 +04 27 27.8 18.1 GVEG123204
K21G05D KC2021 04 08.91771612 21 10.40 +04 12 24.2 VEG123204
K21G05D KC2021 04 08.97728412 12 16.77 +01 30 29.4 17.4 GVEG123I93
K21G05D KC2021 04 08.97884012 12 03.09 +01 26 21.4 18.7 GVEG123I93
K21G05D KC2021 04 08.98042412 11 49.03 +01 22 08.3 17.9 GVEG123I93
K21G05D 1C2021 04 08.98176 12 11 30.78 +01 17 30.9 18.3 VVEG123033
K21G05D 1C2021 04 08.98193 12 11 29.26 +01 17 03.7 18.4 VVEG123033
K21G05D 1C2021 04 08.98210 12 11 27.77 +01 16 36.4 18.8 VVEG123033
K21G05D 1C2021 04 08.98227 12 11 26.29 +01 16 09.7 18.3 VVEG123033
K21G05D |C2021 04 10.05103 10 32 15.31 -26 31 43.2 20.3 VuEG123807
K21G05D |C2021 04 10.05393 10 32 04.83 -26 34 00.1 20.3 VuEG123807
K21G05D |C2021 04 10.05686 10 31 54.26 -26 36 17.7 19.8 VuEG123807
K21G05D KC2021 04 10.14391710 27 10.82 -27 47 24.6 18.97GVEG123I52
K21G05D KC2021 04 10.14709510 27 00.13 -27 49 40.2 19.63GVEG123I52
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.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
381 Tokyo-Kiso. Observer J. Beniyama. 1.05-m f/3.1 Schmidt + CCD.
595 Farra d'Isonzo. Observers G. Panterotto, E. Pettarin. Measurer E.
Pettarin. 0.40-m f/5.15 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
958 Observatoire de Dax. Observer P. Dupouy. 0.32-m Schmidt-Cassegrain.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6.0 Schmidt-Cassegrain + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector +
CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2021 GD5 Earth MOID = 0.0088 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 329.92074 (2000.0) P Q
n 1.00021725 Peri. 71.75674 +0.04920177 -0.97979066
a 0.9902385 Node 18.92479 +0.52808940 -0.13924338
e 0.2218048 Incl. 36.71194 +0.84776221 +0.14360205
P 0.99 H 27.2 G 0.15 U 4
Residuals in seconds of arc
210408 381 0.5- 0.5+ 210408 033 0.5+ 0.5+ 210408 L01 0.1+ 0.0
210408 381 1.4+ 2.2+ 210408 033 0.5+ 0.6+ 210408 L01 0.1+ 0.1-
210408 381 2.0- 2.2- 210408 033 0.1- 0.1- 210408 L01 0.2+ 0.1-
210408 381 0.9+ 0.7- 210408 033 0.6- 0.7- 210408 L01 0.0 0.1-
210408 381 1.4+ 1.0+ 210408 595 0.1+ 0.1- 210408 204 0.2+ 0.5+
210408 381 0.2- 0.9- 210408 A17 0.4+ 0.4+ 210408 204 0.3- 0.5-
210408 381 0.7+ 0.7+ 210408 595 0.5+ 0.4+ 210408 204 0.4- 0.2+
210408 381 1.4- 0.8+ 210408 A17 0.3+ 1.3+ 210408 204 0.7- 0.5-
210408 381 0.2- 0.2+ 210408 A17 0.4+ 0.9+ 210408 I93 0.8- 1.0-
210408 381 2.5+ 1.0+ 210408 595 1.0+ 0.8+ 210408 I93 0.5+ 0.3-
210408 381 1.6- 0.6- 210408 A17 1.6+ 1.4+ 210408 I93 0.4- 0.6-
210408 381 1.3+ 0.3+ 210408 595 0.5+ 1.4+ 210408 033 0.3+ 0.1-
210408 381 0.7- 0.2- 210408 203 0.3+ 0.2+ 210408 033 0.2- 0.2-
210408 381 1.3- 2.0- 210408 203 0.0 0.0 210408 033 0.1- 0.4-
210408 381 2.0- 2.4- 210408 958 0.8- 1.2+ 210408 033 0.0 0.1-
210408 381 0.7- 1.4- 210408 L01 0.0 0.3- 210410 807 0.5- 0.1+
210408 381 0.2- 1.0- 210408 958 0.9- 0.2- 210410 807 0.3- 0.2-
210408 381 1.1- 1.3- 210408 L01 0.2+ 0.2- 210410 807 0.1- 0.4-
210408 K88 0.9+ 1.0+ 210408 203 0.1- 0.2- 210410 I52 0.5+ 0.9+
210408 K88 0.1- 0.6+ 210408 958 0.2- 0.2+ 210410 I52 0.4+ 0.3-
210408 K88 0.5+ 0.9+ 210408 L01 0.1- 0.3-
Ephemeris:
2021 GD5 a,e,i = 0.99, 0.22, 37 q = 0.7706
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 11 20 24 57.8 +45 44 27 0.3097 0.8992 63.5 98.5 28.0
...
2021 03 26 20 06 17.2 +47 12 52 0.1516 0.9578 70.6 100.8 26.7
...
2021 04 03 19 35 21.1 +49 01 04 0.06377 0.9889 78.4 98.0 24.7
...
2021 04 09 12 09 14.4 +00 42 10 0.01061 1.0117 162.7 17.1 18.3
2021 04 10 10 35 10.1 -25 50 37 0.01810 1.0154 138.2 41.1 20.1
2021 04 11 09 53 16.5 -34 23 19 0.02816 1.0191 126.4 52.3 21.4
...
2021 04 17 08 54 44.2 -42 51 39 0.09395 1.0407 110.7 64.4 24.4
...
2021 04 25 08 43 57.6 -44 20 10 0.1821 1.0681 105.2 65.4 26.0
...
2021 05 10 08 46 18.8 -45 14 17 0.3413 1.1141 98.8 63.6 27.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G123
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