MPEC 2021-B95 : 2021 BK2
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M.P.E.C. 2021-B95 Issued 2021 January 20, 16:58 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 BK2
Observations:
K21B02K* C2021 01 18.29602108 34 04.09 +11 29 58.3 21.05GVEB095G96
K21B02K C2021 01 18.30111408 34 01.80 +11 29 15.0 21.57GVEB095G96
K21B02K C2021 01 18.30619408 33 59.51 +11 28 31.0 21.33GVEB095G96
K21B02K C2021 01 18.31126708 33 57.26 +11 27 48.3 20.95GVEB095G96
K21B02K KC2021 01 18.41428308 33 11.15 +11 13 07.9 20.61GVEB095I52
K21B02K KC2021 01 18.41764208 33 09.67 +11 12 39.1 20.97GVEB095I52
K21B02K KC2021 01 18.42100008 33 08.15 +11 12 10.3 20.57GVEB095I52
K21B02K KC2021 01 19.16864208 27 43.09 +09 24 32.4 21.51GVEB095V06
K21B02K KC2021 01 19.17026508 27 42.32 +09 24 18.4 20.85GVEB095V06
K21B02K KC2021 01 19.17188608 27 41.66 +09 24 03.9 21.77GVEB095V06
K21B02K |C2021 01 19.27037 08 26 56.19 +09 10 19.7 20.8 VuEB095807
K21B02K |C2021 01 19.27532 08 26 53.97 +09 09 37.2 20.9 VuEB095807
K21B02K |C2021 01 20.11906 08 20 43.32 +07 05 48.2 21.2 GVEB095807
K21B02K |C2021 01 20.12284 08 20 41.62 +07 05 14.7 21.1 GVEB095807
K21B02K |C2021 01 20.12645 08 20 39.99 +07 04 42.8 21.1 GVEB095807
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD, 1.00-m f/10.0 astrograph + CCD.
G96 Mt. Lemmon Survey. Observer D. C. Fuls. 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.
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.
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 BK2 Earth MOID = 0.2693 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Pike
M 324.36559 (2000.0) P Q
n 0.42124664 Peri. 227.26119 -0.75496094 -0.03980894
a 1.7624295 Node 298.88950 +0.54736216 -0.58796373
e 0.3409229 Incl. 48.38260 -0.36114907 -0.80790711
P 2.34 H 23.02 G 0.15 U 9
Residuals in seconds of arc
210118 G96 0.3+ 0.2+ 210118 I52 0.1+ 0.1- 210119 807 0.2+ 0.1+
210118 G96 0.1+ 0.3+ 210118 I52 0.2- 0.1- 210119 807 (0.4+ 0.9+)
210118 G96 0.2- 0.5- 210119 V06 0.0+ 0.1+ 210120 807 0.1- 0.0-
210118 G96 0.1+ 0.1+ 210119 V06 0.7- 0.2+ 210120 807 0.0+ 0.0-
210118 I52 0.2- 0.1- 210119 V06 0.3+ 0.2- 210120 807 0.1+ 0.0+
Ephemeris:
2021 BK2 a,e,i = 1.76, 0.34, 48 q = 1.1616
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 21 10 42 14.0 +44 45 36 0.5809 1.3651 119.2 39.0 24.1
...
2021 01 05 09 55 46.8 +34 26 55 0.3848 1.3039 140.6 28.6 22.8
...
2021 01 13 09 10 47.0 +22 48 39 0.3069 1.2741 158.5 16.4 21.9
...
2021 01 19 08 28 56.0 +09 49 20 0.2745 1.2535 167.8 9.5 21.3
2021 01 20 08 21 35.3 +07 23 11 0.2719 1.2503 166.8 10.4 21.3
2021 01 21 08 14 12.3 +04 54 44 0.2703 1.2470 164.9 11.8 21.4
...
2021 01 27 07 30 36.7 -09 38 23 0.2788 1.2287 147.4 25.6 21.9
...
2021 02 04 06 40 19.2 -24 26 05 0.3305 1.2071 125.3 41.8 22.7
...
2021 02 19 05 41 23.4 -37 32 38 0.4831 1.1772 100.6 55.6 23.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B95
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