MPEC 2021-B81 : 2021 AD8
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M.P.E.C. 2021-B81 Issued 2021 January 20, 02:23 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 AD8
Observations:
K21A08D* C2021 01 15.22735604 29 59.89 +55 42 12.6 21.52GVEB081G96
K21A08D C2021 01 15.23337104 29 58.48 +55 43 14.3 21.76GVEB081G96
K21A08D C2021 01 15.23931704 29 56.96 +55 44 14.0 21.48GVEB081G96
K21A08D C2021 01 15.24528104 29 55.46 +55 45 14.7 21.45GVEB081G96
K21A08D KC2021 01 15.33502504 29 34.30 +56 00 10.0 22.19GVEB081G96
K21A08D KC2021 01 15.33676404 29 33.83 +56 00 27.3 VEB081G96
K21A08D HC2021 01 15.86197 04 28 00.99 +57 25 41.2 VEB081204
K21A08D KC2021 01 15.89217 04 27 54.04 +57 30 19.7 21.9 GVEB081204
K21A08D KC2021 01 16.08656404 27 25.04 +58 00 04.6 21.34GVEB081V06
K21A08D KC2021 01 16.09305804 27 23.52 +58 01 03.7 21.61GVEB081V06
K21A08D KC2021 01 17.15411504 24 13.48 +60 27 01.7 21.77GVEB081V06
K21A08D KC2021 01 17.16568304 24 10.89 +60 28 29.2 21.73GVEB081V06
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. 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.
V06 Catalina Sky Survey-Kuiper. Observer D. Rankin. 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. 1.55-m reflector +
1K CCD.
Orbital elements:
2021 AD8 Earth MOID = 0.0462 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Alexandersen
M 26.05796 (2000.0) P Q
n 0.78375073 Peri. 298.21704 +0.60007660 -0.65023453
a 1.1650666 Node 106.81238 +0.79012895 +0.57274662
e 0.1884226 Incl. 29.12708 -0.12491727 +0.49915566
P 1.26 H 24.99 G 0.15 U 8
Residuals in seconds of arc
210115 G96 0.0- 0.1+ 210115 G96 0.1- 0.0- 210116 V06 0.1- 0.3+
210115 G96 0.6+ 0.5+ 210115 G96 0.8- 0.2+ 210116 V06 0.2- 0.1-
210115 G96 0.2+ 0.3- 210115 204 0.1- 0.2- 210117 V06 0.0+ 0.2+
210115 G96 0.1- 0.2- 210115 204 0.2+ 0.0+ 210117 V06 0.0+ 0.2-
Ephemeris:
2021 AD8 a,e,i = 1.17, 0.19, 29 q = 0.9455
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 21 06 25 14.8 -70 12 52 0.1606 0.9862 86.2 84.4 23.9
...
2021 01 05 05 12 15.7 -15 30 10 0.05454 1.0214 133.2 44.6 20.4
...
2021 01 13 04 37 47.0 +47 53 11 0.08112 1.0429 135.4 41.4 21.2
...
2021 01 19 04 19 25.8 +63 50 19 0.1297 1.0600 122.9 51.2 22.6
2021 01 20 04 17 10.7 +65 20 26 0.1384 1.0629 121.5 52.1 22.7
2021 01 21 04 15 10.3 +66 39 18 0.1472 1.0658 120.2 52.9 22.9
...
2021 01 27 04 08 22.7 +71 58 13 0.2008 1.0836 114.6 55.7 23.7
...
2021 02 04 04 13 15.7 +75 34 02 0.2727 1.1078 109.7 56.9 24.4
...
2021 02 19 05 02 34.7 +78 17 45 0.4036 1.1535 103.8 56.3 25.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B81
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