MPEC 2021-B27 : 2021 AP7
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M.P.E.C. 2021-B27 Issued 2021 January 17, 14:27 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 AP7
Observations:
K21A07P C2021 01 07.37577 10 27 27.39 +29 13 28.9 21.8 GVEB027G96
K21A07P C2021 01 07.38096 10 27 26.46 +29 13 30.4 VEB027G96
K21A07P C2021 01 07.38614 10 27 25.48 +29 13 31.3 VEB027G96
K21A07P C2021 01 07.58967210 26 50.233+29 14 28.10 21.23GVEB027F52
K21A07P C2021 01 07.60183110 26 48.077+29 14 30.74 21.00GVEB027F52
K21A07P C2021 01 07.62562210 26 43.814+29 14 36.73 20.88GVEB027F52
K21A07P C2021 01 11.45960010 15 19.949+29 28 43.64 21.66GVEB027F52
K21A07P C2021 01 11.46987410 15 17.909+29 28 45.58 21.82GVEB027F52
K21A07P* C2021 01 15.42272710 02 31.772+29 38 22.47 21.53wUEB027F52
K21A07P C2021 01 15.43546410 02 29.117+29 38 24.43 21.51wUEB027F52
K21A07P C2021 01 15.44822010 02 26.445+29 38 26.04 21.11wUEB027F52
K21A07P KC2021 01 16.11766510 00 10.74 +29 39 15.7 21.0 GVEB027L01
K21A07P KC2021 01 16.12077410 00 10.08 +29 39 15.6 20.9 GVEB027L01
K21A07P KC2021 01 16.12389510 00 09.43 +29 39 16.1 20.6 GVEB027L01
K21A07P KC2021 01 16.12779610 00 08.62 +29 39 16.3 20.9 GVEB027L01
K21A07P ^C2021 01 16.48206909 58 58.161+29 39 53.16 21.01GVEB027568
K21A07P ^C2021 01 16.48304909 58 57.955+29 39 53.24 20.94GVEB027568
K21A07P ^C2021 01 16.48403109 58 57.747+29 39 53.32 20.99GVEB027568
K21A07P 1C2021 01 17.10330 09 56 51.39 +29 40 17.5 21.3 VVEB027033
K21A07P 1C2021 01 17.10689 09 56 50.63 +29 40 17.6 21.7 VVEB027033
K21A07P 1C2021 01 17.11047 09 56 49.89 +29 40 17.7 21.6 VVEB027033
K21A07P KC2021 01 17.27162309 56 18.52 +29 40 29.9 21.19GVEB027I52
K21A07P KC2021 01 17.27414109 56 18.03 +29 40 30.6 21.56GVEB027I52
K21A07P KC2021 01 17.27917709 56 17.00 +29 40 31.7 20.90GVEB027I52
K21A07P C2021 01 17.42788209 55 45.25 +29 40 39.4 20.40GVEB027G96
K21A07P C2021 01 17.43302809 55 44.22 +29 40 40.0 20.84GVEB027G96
K21A07P C2021 01 17.43818509 55 43.11 +29 40 39.7 20.90GVEB027G96
K21A07P C2021 01 17.44333309 55 41.99 +29 40 39.9 21.33GVEB027G96
K21A07P KC2021 01 17.54489 09 55 20.49 +29 40 40.6 21.2 RoEB027691
K21A07P KC2021 01 17.55398 09 55 18.60 +29 40 40.9 21.0 RoEB027691
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.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer T. H. Bressi. 0.9-m
f/3 reflector + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien
+ CCD.
G96 Mt. Lemmon Survey. Observers K. W. Wierzchos, D. C. Fuls. Measurers B.
Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos. 1.5-m
reflector + 10K 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.
Orbital elements:
2021 AP7 Earth MOID = 0.0821 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 52.43386 (2000.0) P Q
n 0.67499441 Peri. 29.72375 +0.98585537 -0.16133961
a 1.2870713 Node 339.41273 +0.11667490 +0.85503248
e 0.3509559 Incl. 7.41383 +0.12031687 +0.49283769
P 1.46 H 21.9 G 0.15 U 8
Residuals in seconds of arc
210107 G96 0.3+ 0.0 210115 F52 0.1+ 0.0 210117 033 0.2+ 0.1+
210107 G96 0.3+ 0.1+ 210116 L01 0.0 0.2+ 210117 I52 0.6- 0.4-
210107 G96 0.5- 0.4- 210116 L01 0.1- 0.1- 210117 I52 0.1- 0.1+
210107 F52 0.5- 0.0 210116 L01 0.1- 0.2+ 210117 I52 0.3+ 0.7+
210107 F52 0.0 0.2- 210116 L01 0.0 0.2+ 210117 G96 0.7- 0.4-
210107 F52 0.5+ 0.3+ 210116 568 0.0 0.0 210117 G96 0.2+ 0.0
210111 F52 0.0 0.2+ 210116 568 0.1+ 0.0 210117 G96 0.1+ 0.4-
210111 F52 0.3- 0.2- 210116 568 0.1+ 0.0 210117 G96 0.2- 0.3-
210115 F52 0.1+ 0.0 210117 033 0.1+ 0.2+ 210117 691 0.0 0.2-
210115 F52 0.2+ 0.2+ 210117 033 0.1+ 0.1+ 210117 691 0.3+ 0.2+
Ephemeris:
2021 AP7 a,e,i = 1.29, 0.35, 7 q = 0.8354
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 18 11 06 16.2 +27 54 56 0.3589 1.1494 108.5 54.3 22.0
...
2021 01 02 10 41 19.0 +28 49 33 0.3538 1.2336 128.1 38.8 21.6
...
2021 01 10 10 19 47.7 +29 23 45 0.3557 1.2771 140.2 29.5 21.5
...
2021 01 16 10 00 35.1 +29 39 13 0.3621 1.3089 149.6 22.4 21.4
2021 01 17 09 57 12.9 +29 40 21 0.3637 1.3141 151.1 21.2 21.3
2021 01 18 09 53 48.9 +29 41 00 0.3655 1.3193 152.7 20.0 21.3
...
2021 01 24 09 33 11.8 +29 33 44 0.3800 1.3499 161.4 13.4 21.2
...
2021 02 01 09 07 08.2 +28 54 02 0.4102 1.3892 168.1 8.4 21.3
...
2021 02 16 08 31 06.1 +26 36 15 0.5009 1.4579 155.2 16.5 22.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B27
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