MPEC 2023-M174 : 2020 DS2
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M.P.E.C. 2023-M174 Issued 2023 June 30, 14:08 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 DS2
Revision to MPEC 2020-D94
Additional Observations:
K20D02S C2023 06 18.33921318 02 22.771+19 19 49.36 21.06GVEM174F52
K20D02S C2023 06 18.35194918 02 20.343+19 20 38.03 21.58GVEM174F52
K20D02S C2023 06 18.36477218 02 17.851+19 21 27.37 21.52GVEM174F52
K20D02S KC2023 06 25.38361417 33 24.498+28 00 13.82 21.67GVEM174F52
K20D02S 1C2023 06 29.36745617 07 41.826+34 06 01.87 20.78GVEM174G96
K20D02S 1C2023 06 29.37175517 07 39.799+34 06 26.42 20.34GVEM174G96
K20D02S 1C2023 06 29.37605417 07 37.758+34 06 51.95 21.47GVEM174G96
K20D02S 1C2023 06 29.38035317 07 35.742+34 07 16.50 20.97GVEM174G96
K20D02S 1C2023 06 29.40859417 07 23.722+34 10 13.44 21.23GVEM174T12
K20D02S 1C2023 06 29.41060417 07 22.759+34 10 25.33 21.64GVEM174T12
K20D02S 1C2023 06 29.41233417 07 21.938+34 10 35.55 21.82GVEM174T12
K20D02S KC2023 06 29.43820317 07 08.684+34 12 53.78 21.96GVEM174I52
K20D02S KC2023 06 29.43970117 07 07.957+34 13 03.00 21.77GVEM174I52
K20D02S KC2023 06 29.44119417 07 07.208+34 13 11.03 21.34GVEM174I52
K20D02S KC2023 06 29.44268417 07 06.560+34 13 19.67 21.07GVEM174I52
K20D02S KC2023 06 29.47876817 06 50.313+34 17 04.88 21.65GVEM174F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, P. Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J.
Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. Measurers E. J.
Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 1.5-m
reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer J. K. Hogan. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer J. Fairlamb.
Measurers R. Weryk, J. Fairlamb, Y. Ramanjooloo, R. Wainscoat. 2.24-m
University of Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230618 F52 3.72+ 2.20+ 230629 F51 3.19+ 5.38+ E2020-E15 +0.06 days
Orbital elements:
2020 DS2 Earth MOID = 0.1309 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 311.50430 (2000.0) P Q
n 0.26928311 Peri. 212.30733 +0.85833345 -0.51306445
a 2.3749983 Node 178.52911 +0.50381088 +0.84078911
e 0.8315555 Incl. 12.01641 +0.09715085 +0.17273839
P 3.66 H 21.78 G 0.15 U 1
Residuals in seconds of arc
200219 G96 0.1- 0.0 200220 587 0.0 0.4- 200224 474 0.1+ 0.0
200219 G96 0.5- 0.2+ 200220 587 0.0 0.7- 200224 474 0.0 0.1-
200219 G96 0.1- 0.3- 200220 033 0.2+ 0.0 200224 474 0.6- 0.1-
200219 I52 0.0 0.1+ 200220 033 0.4+ 0.1+ 200224 474 0.2+ 0.2-
200219 I52 0.7- 0.3- 200220 033 0.5+ 0.1+ 200229 I52 0.2+ 0.1+
200219 474 0.3+ 0.1- 200220 204 0.1- 0.3+ 200229 I52 0.1+ 0.7+
200219 474 1.0+ 0.1- 200220 104 0.0 0.4- 200229 I52 0.1+ 0.4+
200219 474 0.8- 0.3+ 200220 104 0.1+ 0.0 200305 V06 0.1+ 0.1+
200219 474 0.9- 0.1+ 200220 204 0.3+ 0.3- 200305 V06 0.1- 0.0
200219 I93 0.6+ 0.7+ 200220 J95 0.1+ 0.2- 200305 V06 0.5- 0.1-
200219 Z84 0.1+ 0.2- 200220 J95 0.0 0.8- 200305 V06 0.4- 0.0
200219 I93 0.4+ 0.9+ 200221 I52 0.8- 0.8- 230618 F52 0.2- 0.3-
200219 Z84 0.1+ 0.3- 200221 734 0.1+ 0.7+ 230618 F52 0.1+ 0.3-
200219 I93 0.1+ 0.6+ 200221 I52 0.5- 0.5+ 230618 F52 0.2- 0.1-
200219 Z84 0.1+ 0.2- 200221 I52 0.4- 0.4- 230625 F52 0.1- 0.1-
200219 L01 1.3- 0.0 200221 I52 0.8- 0.6+ 230629 G96 0.3+ 0.4+
200219 L01 1.3+ 1.4- 200221 734 0.5+ 1.0+ 230629 G96 0.2+ 0.1-
200219 L01 0.3- 0.9- 200221 H36 0.2- 0.0 230629 G96 0.1- 0.3+
200219 X31 0.3- 0.1+ 200221 H36 0.5- 0.8+ 230629 G96 0.1- 0.2-
200220 X31 0.7+ 0.6+ 200221 734 0.7+ 0.4+ 230629 T12 0.1- 0.1-
200220 I52 0.5- 0.3- 200221 H36 0.4+ 0.3+ 230629 T12 0.2- 0.1-
200220 I52 0.1+ 0.3- 200221 734 0.6+ 0.4+ 230629 T12 0.2- 0.0
200220 I52 0.1+ 0.1+ 200221 H21 0.3+ 0.1- 230629 I52 0.7+ 0.3+
200220 I52 0.1- 0.2+ 200221 H21 0.2+ 0.6- 230629 I52 0.4+ 0.8+
200220 K51 0.2+ 0.1- 200221 H21 0.3+ 0.5- 230629 I52 0.2- 0.1+
200220 K51 0.2+ 0.0 200222 W34 1.0+ 0.3+ 230629 I52 0.4+ 0.1+
200220 K51 0.0 0.0 200222 W34 0.5+ 0.0 230629 F51 0.5- 0.2+
200220 587 0.4+ 0.2+ 200222 W34 0.5- 0.7+
Ephemeris:
2020 DS2 a,e,i = 2.37, 0.83, 12 q = 0.4001
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 05 31 18 32 56.6 +05 37 10 0.6813 1.5926 139.1 24.6 23.1
...
2023 06 15 18 11 28.8 +16 02 33 0.4564 1.3945 139.5 28.3 22.0
...
2023 06 23 17 45 04.4 +24 46 31 0.3583 1.2824 131.6 36.4 21.6
...
2023 06 29 17 10 29.7 +33 30 07 0.2986 1.1950 120.2 47.3 21.3
2023 06 30 17 02 43.9 +35 08 38 0.2901 1.1802 117.8 49.6 21.3
2023 07 01 16 54 12.7 +36 49 48 0.2821 1.1653 115.3 52.1 21.3
...
2023 07 07 15 41 33.1 +47 10 56 0.2460 1.0741 96.8 70.0 21.3
...
2023 07 15 12 53 50.8 +54 14 57 0.2369 0.9480 66.7 100.1 22.2
...
2023 07 30 09 15 30.4 +36 56 04 0.3469 0.7004 20.3 149.8 27.1
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-M174
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