MPEC 2021-A164 : 2021 AO5
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M.P.E.C. 2021-A164 Issued 2021 January 13, 13:39 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 AO5
Observations:
K21A05O* C2021 01 11.31685009 23 06.03 +05 37 37.0 VEA164G96
K21A05O C2021 01 11.32200509 23 07.10 +05 37 32.3 20.15GVEA164G96
K21A05O C2021 01 11.32717609 23 08.16 +05 37 28.6 20.17GVEA164G96
K21A05O C2021 01 11.33234509 23 09.24 +05 37 25.2 20.27GVEA164G96
K21A05O mC2021 01 11.38115509 23 19.38 +05 36 51.0 20.31GVEA164I52
K21A05O mC2021 01 11.38407009 23 19.96 +05 36 48.9 20.11GVEA164I52
K21A05O mC2021 01 11.38697809 23 20.54 +05 36 47.0 20.26GVEA164I52
K21A05O mC2021 01 11.38774609 23 20.70 +05 36 46.6 20.13GVEA164I52
K21A05O bC2021 01 11.97601209 25 35.34 +05 29 38.8 20.4 GVEA164L01
K21A05O bC2021 01 11.97835809 25 35.84 +05 29 37.4 19.9 GVEA164L01
K21A05O bC2021 01 11.97913909 25 36.01 +05 29 36.9 20.1 GVEA164L01
K21A05O bC2021 01 11.98031209 25 36.28 +05 29 36.0 19.6 GVEA164L01
K21A05O bC2021 01 11.98226809 25 36.71 +05 29 34.9 20.3 GVEA164L01
K21A05O KC2021 01 12.24323609 26 38.82 +05 26 25.8 20.3 VuEA164H21
K21A05O KC2021 01 12.24615109 26 39.49 +05 26 23.7 20.2 VuEA164H21
K21A05O KC2021 01 12.24925909 26 40.20 +05 26 21.4 20.2 VuEA164H21
K21A05O mC2021 01 12.30471909 26 53.73 +05 25 44.7 19.91GVEA164I52
K21A05O mC2021 01 12.30548609 26 53.85 +05 25 43.8 20.07GVEA164I52
K21A05O KC2021 01 12.30841 09 26 53.92 +05 25 37.7 20.1 GVEA164H36
K21A05O mC2021 01 12.30896809 26 54.58 +05 25 41.6 20.72GVEA164I52
K21A05O mC2021 01 12.31245109 26 55.36 +05 25 39.4 VEA164I52
K21A05O KC2021 01 12.31326 09 26 55.05 +05 25 34.3 20.4 GVEA164H36
K21A05O KC2021 01 12.32295 09 26 57.26 +05 25 27.7 19.9 GVEA164H36
K21A05O C2021 01 12.34785 09 27 03.21 +05 25 14.4 oEA164711
K21A05O C2021 01 12.35082 09 27 03.90 +05 25 11.9 oEA164711
K21A05O C2021 01 12.35377 09 27 04.57 +05 25 09.7 oEA164711
K21A05O C2021 01 12.58060509 27 58.777+05 22 25.66 20.38wUEA164F51
K21A05O C2021 01 12.59360209 28 01.788+05 22 15.59 20.29wUEA164F51
K21A05O C2021 01 12.60637009 28 04.759+05 22 05.76 20.34wUEA164F51
K21A05O KC2021 01 12.94914 09 29 33.71 +05 17 25.9 19.8 GVEA164595
K21A05O KC2021 01 12.96931 09 29 38.70 +05 17 09.9 19.9 GVEA164595
K21A05O 1C2021 01 12.99259 09 29 44.38 +05 16 48.8 20.5 VVEA164033
K21A05O 1C2021 01 12.99380 09 29 44.69 +05 16 47.5 20.5 VVEA164033
K21A05O 1C2021 01 12.99502 09 29 44.97 +05 16 46.5 21.0 VVEA164033
K21A05O KC2021 01 13.41585909 31 34.62 +05 11 23.8 19.87GVEA164I52
K21A05O KC2021 01 13.42788209 31 37.64 +05 11 14.3 19.68GVEA164I52
K21A05O KC2021 01 13.42879609 31 37.89 +05 11 13.7 20.25GVEA164I52
K21A05O KC2021 01 13.42971209 31 38.10 +05 11 12.5 19.81GVEA164I52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, F.
Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
595 Farra d'Isonzo. Observers S. Aschi, E. Pettarin. Measurer E. Pettarin.
0.40-m f/5.15 reflector + CCD.
711 McDonald Observatory, Fort Davis. Observers J. G. Ries, B. P. Roman.
Measurer J. G. Ries. 2.1-m reflector + CCD + focal reducer.
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.
G96 Mt. Lemmon Survey. Observer H. Groeller. 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. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers T. A. Pruyne, E. J.
Christensen. 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.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, V. Dobos, D. Pujagic.
Measurers K. Korlevic, D. Pujagic. 1.0-m f/2.9 reflector + CCD.
Orbital elements:
2021 AO5 Earth MOID = 0.0080 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 331.14940 (2000.0) P Q
n 0.32980459 Peri. 74.91658 -0.89969849 +0.42584112
a 2.0747459 Node 130.18773 -0.43296109 -0.84259226
e 0.6516887 Incl. 7.21365 -0.05556365 -0.32969323
P 2.99 H 22.2 G 0.15 U 8
Residuals in seconds of arc
210111 G96 0.0 1.1+ 210112 H21 0.4+ 0.2- 210112 F51 0.1+ 0.1+
210111 G96 0.0 0.0 210112 H21 0.5+ 0.1- 210112 F51 0.0 0.0
210111 G96 0.2- 0.2- 210112 H21 0.5+ 0.1- 210112 F51 0.1- 0.0
210111 G96 0.0 0.0 210112 I52 0.6+ 0.1+ 210112 595 0.3- 0.4+
210111 I52 0.4+ 0.3- 210112 I52 0.3- 0.3- 210112 595 0.2+ 0.0
210111 I52 0.0 0.4- 210112 H36 0.1+ 0.6- 210112 033 0.2- 0.2-
210111 I52 0.3- 0.2- 210112 I52 1.2- 0.1+ 210112 033 0.0 0.6-
210111 I52 0.3- 0.1- 210112 I52 1.4- 0.4+ 210112 033 0.3- 0.6-
210111 L01 0.5+ 0.2- 210112 H36 0.5+ 0.4- 210113 I52 0.3+ 0.0
210111 L01 0.1+ 0.1+ 210112 H36 0.6+ 0.2+ 210113 I52 0.1- 0.2+
210111 L01 0.1+ 0.1+ 210112 711 0.6- 0.3+ 210113 I52 0.2+ 0.4+
210111 L01 0.2+ 0.1+ 210112 711 0.3- 0.0 210113 I52 0.1- 0.1-
210111 L01 0.1+ 0.4+ 210112 711 0.3- 0.0
Ephemeris:
2021 AO5 a,e,i = 2.07, 0.65, 7 q = 0.7227
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 14 08 29 47.6 +09 26 55 0.5978 1.4642 134.0 28.9 23.2
...
2020 12 29 08 51 04.1 +07 37 45 0.3870 1.3140 143.3 26.6 21.9
...
2021 01 06 09 07 10.0 +06 31 53 0.2851 1.2323 147.1 25.7 21.1
...
2021 01 12 09 25 39.9 +05 29 49 0.2135 1.1708 148.5 26.1 20.4
2021 01 13 09 29 45.4 +05 17 15 0.2020 1.1605 148.5 26.3 20.2
2021 01 14 09 34 16.4 +05 03 42 0.1906 1.1503 148.4 26.6 20.1
...
2021 01 20 10 16 03.4 +03 05 26 0.1261 1.0890 144.4 31.7 19.2
...
2021 01 28 13 08 46.5 -04 38 19 0.06423 1.0089 110.3 66.2 18.6
...
2021 02 12 18 57 09.8 -09 37 08 0.1625 0.8701 40.6 132.5 23.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-A164
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