MPEC 2021-B101 : 2021 BR2
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2021-B100
Read MPEC 2021-B102
M.P.E.C. 2021-B101 Issued 2021 January 20, 19:10 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 BR2
Observations:
K21B02R* C2021 01 18.29602108 34 16.12 +12 31 19.8 21.66GVEB101G96
K21B02R C2021 01 18.30111408 34 12.55 +12 31 19.4 21.01GVEB101G96
K21B02R C2021 01 18.30619408 34 09.02 +12 31 18.7 21.28GVEB101G96
K21B02R C2021 01 18.31126708 34 05.57 +12 31 18.2 VEB101G96
K21B02R KC2021 01 18.39360108 33 10.81 +12 30 43.6 21.34GVEB101V06
K21B02R KC2021 01 18.39576208 33 09.46 +12 30 42.1 21.54GVEB101V06
K21B02R KC2021 01 18.39792408 33 08.12 +12 30 40.9 21.00GVEB101V06
K21B02R KC2021 01 18.49828808 32 14.04 +12 29 08.5 21.03GVEB101V06
K21B02R KC2021 01 18.49990908 32 13.32 +12 29 06.5 21.47GVEB101V06
K21B02R KC2021 01 18.50153708 32 12.61 +12 29 04.7 21.26GVEB101V06
K21B02R |C2021 01 19.27246 08 29 47.81 +12 38 25.2 21.7 GVEB101807
K21B02R |C2021 01 19.27644 08 29 46.24 +12 38 22.7 21.7 GVEB101807
K21B02R |C2021 01 19.28041 08 29 44.68 +12 38 20.2 21.8 GVEB101807
K21B02R |C2021 01 20.13940 08 28 16.76 +12 34 20.2 22.2 GVEB101807
K21B02R |C2021 01 20.14851 08 28 14.21 +12 34 20.8 22.3 GVEB101807
K21B02R |C2021 01 20.15721 08 28 11.76 +12 34 21.2 22.5 GVEB101807
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
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.
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 BR2 Earth MOID = 0.0002 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 9.04843 (2000.0) P Q
n 0.67547046 Peri. 124.37752 +0.48487959 -0.87449690
a 1.2864665 Node 296.61345 +0.79789518 +0.44799729
e 0.3131275 Incl. 0.77690 +0.35812717 +0.18588598
P 1.46 H 30.8 G 0.15 U 6
Residuals in seconds of arc
210118 G96 0.5+ 0.1- 210118 V06 0.0 0.3+ 210119 807 0.1+ 0.1-
210118 G96 0.2- 0.1- 210118 V06 0.1- 0.3+ 210120 807 0.1+ 0.1-
210118 G96 0.4- 0.2- 210118 V06 0.2- 0.0 210120 807 0.1- 0.0
210118 G96 0.3+ 0.0 210118 V06 0.1- 0.0 210120 807 0.2- 0.2+
210118 V06 0.0 0.1+ 210119 807 0.1+ 0.1-
210118 V06 0.0 0.0 210119 807 0.2+ 0.1-
Ephemeris:
2021 BR2 a,e,i = 1.29, 0.31, 1 q = 0.8836
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 21 20 52 02.1 -14 13 15 0.1161 0.9012 42.3 132.7 31.9
...
2021 01 05 20 59 35.5 -13 18 17 0.04781 0.9418 29.1 149.5 32.4
...
2021 01 13 20 53 59.7 -13 02 15 0.01334 0.9710 20.0 159.8 32.2
...
2021 01 19 08 30 51.3 +12 32 24 0.01249 0.9962 169.8 10.0 21.9
2021 01 20 08 28 18.1 +12 29 08 0.01677 1.0005 170.9 8.9 22.5
2021 01 21 08 26 47.3 +12 27 27 0.02106 1.0049 171.7 8.1 23.0
...
2021 01 27 08 23 38.5 +12 27 53 0.04711 1.0314 173.1 6.6 24.7
...
2021 02 04 08 23 07.7 +12 37 03 0.08332 1.0674 168.0 11.1 26.2
...
2021 02 19 08 27 07.0 +12 56 58 0.1592 1.1348 155.0 21.6 28.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-B101
Read MPEC 2021-B100
Read MPEC 2021-B102
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)