MPEC 2021-B50 : 2021 AW7
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M.P.E.C. 2021-B50 Issued 2021 January 18, 08:54 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 AW7
Observations:
K21A07W* C2021 01 15.48438210 02 55.452+09 46 48.51 21.55wUEB050F51
K21A07W C2021 01 15.49607310 02 58.422+09 46 37.95 21.37wUEB050F51
K21A07W C2021 01 15.50797710 03 01.436+09 46 26.71 21.57wUEB050F51
K21A07W C2021 01 15.51986810 03 04.461+09 46 15.44 21.57wUEB050F51
K21A07W KC2021 01 15.95357910 05 06.84 +09 38 59.9 21.1 GVEB050L01
K21A07W KC2021 01 15.95982410 05 08.54 +09 38 54.1 21.2 GVEB050L01
K21A07W KC2021 01 15.96607010 05 10.29 +09 38 47.6 21.7 GVEB050L01
K21A07W KC2021 01 16.30991810 06 48.50 +09 33 24.9 21.62GVEB050I52
K21A07W KC2021 01 16.31411810 06 49.64 +09 33 20.9 22.01GVEB050I52
K21A07W ^C2021 01 16.48562210 07 38.361+09 30 44.65 21.78GVEB050568
K21A07W ^C2021 01 16.48660610 07 38.625+09 30 43.69 21.65GVEB050568
K21A07W ^C2021 01 16.48759810 07 38.894+09 30 42.72 21.70GVEB050568
K21A07W 1C2021 01 17.20894 10 11 09.11 +09 18 03.3 22.2 VVEB050033
K21A07W 1C2021 01 17.21241 10 11 10.13 +09 17 59.5 22.2 VVEB050033
K21A07W KC2021 01 18.32306410 16 58.86 +08 58 32.7 21.49GVEB050V06
K21A07W KC2021 01 18.32661710 16 59.92 +08 58 28.7 21.24GVEB050V06
K21A07W KC2021 01 18.32839410 17 00.50 +08 58 26.8 21.96GVEB050V06
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, F.
Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
568 Mauna Kea. Observers R. Wainscoat, C. Crowder, C. Wipper. Measurers R.
Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
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.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m reflector +
CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, V. Dobos, D. Pujagic.
Measurers D. Pujagic, K. Korlevic. 1.0-m f/2.9 reflector + 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 AW7 Earth MOID = 0.0137 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 312.59727 (2000.0) P Q
n 0.54642912 Peri. 54.13783 -0.99856834 +0.04683656
a 1.4817678 Node 128.53235 -0.05313745 -0.92400030
e 0.3537653 Incl. 1.89283 +0.00613816 -0.37951256
P 1.80 H 24.40 G 0.15 U 8
Residuals in seconds of arc
210115 F51 0.0- 0.1- 210115 L01 0.2- 0.3+ 210116 568 0.0- 0.0+
210115 F51 0.0- 0.1- 210115 L01 0.2+ 0.3+ 210116 568 0.0+ 0.0+
210115 F51 0.0- 0.2+ 210115 L01 1.3+ 0.3- 210116 568 0.0+ 0.0+
210115 F51 0.0- 0.2+ 210116 I52 0.1+ 0.4+ 210117 033 0.1- 0.1+
210115 F51 0.1- 0.0- 210116 I52 0.3+ 0.3+ 210117 033 0.0+ 0.0+
210115 F51 0.1- 0.0- 210116 568 0.0- 0.0+ 210118 V06 0.2- 0.1-
210115 F51 0.0+ 0.2- 210116 568 0.0- 0.0+ 210118 V06 0.4- 0.3-
210115 F51 0.0+ 0.2- 210116 568 0.0- 0.0+ 210118 V06 0.3+ 0.3-
Ephemeris:
2021 AW7 a,e,i = 1.48, 0.35, 2 q = 0.9576
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 19 08 43 46.5 +14 26 15 0.3410 1.2571 137.6 31.8 23.9
...
2021 01 03 09 18 48.0 +12 18 22 0.2312 1.1784 144.1 29.3 22.9
...
2021 01 11 09 44 23.6 +10 49 57 0.1814 1.1382 145.9 29.0 22.2
...
2021 01 17 10 10 08.2 +09 22 20 0.1483 1.1093 145.6 30.1 21.8
2021 01 18 10 15 14.3 +09 04 52 0.1432 1.1047 145.4 30.4 21.7
2021 01 19 10 20 37.6 +08 46 19 0.1382 1.1000 145.0 30.8 21.6
...
2021 01 25 11 00 25.6 +06 25 32 0.1111 1.0732 141.1 35.1 21.2
...
2021 02 02 12 21 24.4 +01 18 45 0.08476 1.0404 128.6 47.8 20.9
...
2021 02 17 15 53 28.3 -10 44 56 0.08429 0.9913 89.7 85.4 22.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B50
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