MPEC 2021-G91 : 2021 GN3
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M.P.E.C. 2021-G91 Issued 2021 April 7, 21:13 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 GN3
Observations:
K21G03N* C2021 04 06.30327410 19 07.798-08 02 45.81 20.45wUEG091F51
K21G03N C2021 04 06.32667710 19 12.868-08 06 28.64 20.36wUEG091F51
K21G03N C2021 04 06.33833810 19 15.395-08 08 19.27 20.48wUEG091F51
K21G03N KC2021 04 06.52452210 20 01.70 -08 35 39.2 20.4 GVEG091474
K21G03N KC2021 04 06.52634210 20 02.15 -08 35 56.5 19.9 GVEG091474
K21G03N KC2021 04 06.52816210 20 02.58 -08 36 13.5 20.1 GVEG091474
K21G03N bC2021 04 06.81074810 21 23.13 -09 23 40.7 20.4 GVEG091L01
K21G03N KC2021 04 06.82296910 21 27.38 -09 25 33.7 19.8 GVEG091I93
K21G03N bC2021 04 06.82297810 21 25.96 -09 25 37.3 20.1 GVEG091L01
K21G03N bC2021 04 06.82557610 21 26.54 -09 26 01.8 20.2 GVEG091L01
K21G03N bC2021 04 06.82817510 21 27.09 -09 26 25.9 20.3 GVEG091L01
K21G03N KC2021 04 06.82985710 21 28.96 -09 26 39.6 20.5 GVEG091I93
K21G03N KC2021 04 06.83483310 21 28.79 -09 27 30.8 20.0 GVEG091595
K21G03N KC2021 04 06.83686910 21 30.50 -09 27 45.5 20.3 GVEG091I93
K21G03N KC2021 04 06.85299710 21 32.97 -09 30 23.0 19.9 GVEG091595
K21G03N pC2021 04 06.87841610 21 38.87 -09 34 22.7 20.0 GVEG091595
K21G03N KC2021 04 07.17239010 22 59.98 -10 20 22.9 19.82GVEG091I52
K21G03N KC2021 04 07.17339110 23 00.18 -10 20 32.2 19.64GVEG091I52
K21G03N KC2021 04 07.17438210 23 00.41 -10 20 41.7 19.86GVEG091I52
K21G03N KC2021 04 07.17536910 23 00.65 -10 20 51.3 19.83GVEG091I52
K21G03N KC2021 04 07.18148010 22 59.52 -10 21 58.1 20.1 VuEG091H21
K21G03N KC2021 04 07.18443310 23 00.24 -10 22 25.8 20.2 VuEG091H21
K21G03N KC2021 04 07.18643310 23 00.68 -10 22 44.9 20.2 VuEG091H21
K21G03N C2021 04 07.30122 10 23 30.37 -10 40 38.0 19.8 GVEG091654
K21G03N C2021 04 07.33979 10 23 39.53 -10 46 38.5 20.1 GVEG091654
K21G03N C2021 04 07.37154 10 23 47.32 -10 51 34.7 19.3 GVEG091654
K21G03N KC2021 04 07.44747610 24 12.32 -11 01 08.0 20.1 GVEG091474
K21G03N KC2021 04 07.44987210 24 12.91 -11 01 30.6 20.5 GVEG091474
K21G03N KC2021 04 07.45107010 24 13.15 -11 01 41.6 20.3 GVEG091474
K21G03N KC2021 04 07.45346610 24 13.73 -11 02 04.0 20.2 GVEG091474
K21G03N KC2021 04 07.83671910 26 00.84 -12 04 36.9 VEG091104
K21G03N KC2021 04 07.84352310 26 02.39 -12 05 41.0 20.0 GVEG091104
K21G03N KC2021 04 07.84949610 26 03.83 -12 06 36.6 20.3 GVEG091104
K21G03N KC2021 04 07.85547710 26 05.27 -12 07 32.5 20.0 GVEG091104
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
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.
595 Farra d'Isonzo. Observer E. Pettarin. 0.61-m f/4.5 reflector + CCD.
654 Table Mountain Observatory, Wrightwood-PHMC. Observers P. Choi, N. Saini,
C. Zhai, R. Trahan, M. Shao.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2021 GN3 Earth MOID = 0.0576 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Pike
M 316.47048 (2000.0) P Q
n 0.41743650 Peri. 182.60026 -0.99091745 +0.13396403
a 1.7731376 Node 5.14254 -0.12090607 -0.84959605
e 0.4043029 Incl. 7.48266 -0.05885861 -0.51013742
P 2.36 H 24.35 G 0.15 U 7
Residuals in seconds of arc
210406 F51 0.0+ 0.1- 210406 595 1.1+ 0.3- 210407 654 0.3- 0.1-
210406 F51 0.0+ 0.1- 210406 I93 0.7- 1.9+ 210407 654 0.1+ 0.3-
210406 F51 0.0- 0.1+ 210406 595 0.4+ 0.4- 210407 474 0.2- 0.2-
210406 474 0.4- 0.2+ 210406 595 0.1+ 0.3+ 210407 474 0.1+ 0.4-
210406 474 0.1- 0.1+ 210407 I52 0.2+ 0.0- 210407 474 0.5- 0.1-
210406 474 0.1- 0.2+ 210407 I52 0.1- 0.1+ 210407 474 0.3- 0.0-
210406 L01 0.4+ 0.6+ 210407 I52 0.0- 0.0+ 210407 104 0.8+ 0.3+
210406 I93 1.3+ 1.6+ 210407 I52 0.1+ 0.3- 210407 104 0.3- 0.1-
210406 L01 0.2+ 0.0+ 210407 H21 0.0+ 0.0+ 210407 104 0.0- 0.2+
210406 L01 0.2- 0.2+ 210407 H21 0.5+ 0.1+ 210407 104 0.2+ 0.2+
210406 L01 1.0- 0.7+ 210407 H21 0.1+ 0.2-
210406 I93 0.8+ 1.2+ 210407 654 0.0- 0.0-
Ephemeris:
2021 GN3 a,e,i = 1.77, 0.40, 7 q = 1.0563
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 08 09 07 18.9 +42 07 26 0.1280 1.0846 133.5 41.6 21.7
...
2021 03 23 09 29 40.3 +25 06 56 0.08887 1.0599 133.6 42.9 20.9
...
2021 03 31 09 53 55.9 +08 19 10 0.07620 1.0562 137.4 39.8 20.5
...
2021 04 06 10 17 47.0 -07 13 34 0.07356 1.0580 139.9 37.6 20.3
2021 04 07 10 22 12.2 -09 51 47 0.07381 1.0586 140.1 37.3 20.3
2021 04 08 10 26 44.7 -12 28 15 0.07426 1.0594 140.3 37.2 20.3
...
2021 04 14 10 56 16.3 -26 43 49 0.08092 1.0662 140.0 37.2 20.5
...
2021 04 22 11 39 44.8 -40 08 30 0.09851 1.0810 138.6 38.0 21.0
...
2021 05 07 12 58 24.5 -50 31 46 0.1475 1.1243 138.9 36.2 21.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G91
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