MPEC 2020-D149 : 2020 DR4
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M.P.E.C. 2020-D149 Issued 2020 February 29, 19:12 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
2020 DR4
Observations:
K20D04R* C2020 02 27.12578 08 10 38.41 +06 20 15.8 19.5 GVED149G96
K20D04R C2020 02 27.13132 08 10 27.99 +06 19 48.9 19.6 GVED149G96
K20D04R C2020 02 27.14244 08 10 07.05 +06 18 53.6 19.3 GVED149G96
K20D04R C2020 02 27.28754 08 05 57.16 +06 07 09.2 19.6 GVED149I52
K20D04R C2020 02 27.28778 08 05 56.77 +06 07 08.7 19.9 GVED149I52
K20D04R C2020 02 27.28803 08 05 56.41 +06 07 06.7 20.1 GVED149I52
K20D04R C2020 02 27.28827 08 05 56.01 +06 07 05.8 19.5 GVED149I52
K20D04R KC2020 02 28.85588307 53 54.239+05 12 36.72 21.2 GVED149J04
K20D04R KC2020 02 28.86604307 53 49.243+05 12 28.13 21.8 GVED149J04
K20D04R KC2020 02 28.87619407 53 44.320+05 12 19.28 21.4 GVED149J04
K20D04R |C2020 02 29.01933 07 53 13.18 +05 21 10.6 21.6 GVED149807
K20D04R |C2020 02 29.02765 07 53 09.43 +05 21 02.1 21.7 GVED149807
K20D04R |C2020 02 29.03616 07 53 05.59 +05 20 52.7 21.7 GVED149807
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 T. A. Pruyne. 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 G. J. Leonard.
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.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers M.
Micheli, D. Koschny, L. Conversi, M. Busch, A. Knofel, E. Schwab. 1.0-m
f/4.4 reflector + CCD.
Orbital elements:
2020 DR4 Earth MOID = 0.0004 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 253.13920 (2000.0) P Q
n 1.33828682 Peri. 32.18258 +0.98767075 -0.15359298
a 0.8155237 Node 336.59598 +0.12257912 +0.87901603
e 0.2926216 Incl. 4.36911 +0.09736962 +0.45137568
P 0.74 H 29.7 G 0.15 U 7
Residuals in seconds of arc
200227 G96 0.2- 0.3- 200227 I52 0.1+ 0.2- 200229 807 0.1- 0.1+
200227 G96 0.4+ 0.2+ 200227 I52 0.5- 0.0 200229 807 0.2- 0.1+
200227 G96 0.1- 0.2- 200228 J04 0.6+ 0.2- 200229 807 0.0 0.5-
200227 I52 0.3+ 0.1- 200228 J04 0.5- 0.1+
200227 I52 0.1- 0.6+ 200228 J04 0.1+ 0.3+
Ephemeris:
2020 DR4 a,e,i = 0.82, 0.29, 4 q = 0.5769
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 30 20 25 21.3 -07 50 38 0.1128 0.8747 11.4 167.2
...
2020 02 14 20 16 58.2 -07 00 45 0.04731 0.9440 23.0 155.8 32.7
...
2020 02 22 20 08 30.2 -06 26 40 0.01537 0.9760 32.3 147.2 28.5
...
2020 02 28 07 58 18.4 +05 40 03 0.0086170.9969 139.6 40.1 21.0
2020 02 29 07 53 01.0 +05 14 54 0.01258 0.9999 137.3 42.2 21.8
2020 03 01 07 50 21.7 +05 01 49 0.01654 1.0027 135.7 43.6 22.5
...
2020 03 07 07 46 44.6 +04 37 58 0.04030 1.0183 129.2 49.0 24.6
...
2020 03 15 07 48 46.9 +04 31 52 0.07202 1.0347 122.2 54.4 26.0
...
2020 03 30 07 59 00.4 +04 25 59 0.1310 1.0520 110.6 62.7 27.6
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-D149
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