MPEC 2023-D38 : 2020 DQ
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M.P.E.C. 2023-D38 Issued 2023 February 21, 14:06 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 DQ
Revision to MPEC 2020-D38
Additional Observations:
K20D00Q C2016 10 12.57125903 00 35.057+08 44 02.17 23.00GVED038F51
K20D00Q C2016 10 12.58289103 00 34.744+08 43 54.90 22.95GVED038F51
K20D00Q C2016 10 12.59448403 00 34.434+08 43 47.28 22.66GVED038F51
K20D00Q C2016 10 12.60607003 00 34.121+08 43 40.08 23.74GVED038F51
K20D00Q C2016 10 29.41630602 48 34.721+05 16 54.73 22.02GVED038F51
K20D00Q C2020 03 11.36126908 33 22.057+13 20 33.58 21.00GVED038F52
K20D00Q C2020 03 11.37185308 33 23.802+13 20 40.95 21.19GVED038F52
K20D00Q C2020 03 11.38243208 33 25.475+13 20 48.50 21.65GVED038F52
K20D00Q 2C2023 02 20.21087013 44 55.588-12 20 46.62 21.2 GVED038J04
K20D00Q 2C2023 02 20.23179213 44 56.821-12 20 36.68 21.5 GVED038J04
K20D00Q 2C2023 02 20.25276613 44 58.045-12 20 26.97 21.5 GVED038J04
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, 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, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers M. Micheli, R. Kresken, F. Ocana, A.
Knofel, M. Busch, E. Schwab. 1.0-m f/4.4 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
161012 F51 0.24+ 0.05+ 230220 J04 0.34+ 0.06+ MPO546169 -0.26 days
Orbital elements:
2020 DQ Earth MOID = 0.2359 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 18.57774 (2000.0) P Q
n 0.33847816 Peri. 313.31887 -0.60106855 -0.79910908
a 2.0391489 Node 173.59448 +0.76062478 -0.57655971
e 0.4080076 Incl. 6.11577 +0.24528869 -0.17030439
P 2.91 H 21.44 G 0.15 U 1
Residuals in seconds of arc
161012 F51 0.1- 0.2- 200218 I52 0.3- 0.1- 200303 807 0.1- 0.4+
161012 F51 0.0 0.0 200218 204 0.1+ 0.3- 200303 807 0.2+ 0.1+
161012 F51 0.1+ 0.2- 200218 204 0.3- 0.1+ 200304 654 0.3- 0.1-
161012 F51 0.1+ 0.1+ 200220 I52 0.1- 0.1+ 200304 654 0.0 0.2+
161029 F51 0.1+ 0.1- 200220 I52 0.5+ 0.1- 200304 654 0.0 0.1-
200216 G96 0.0 0.1+ 200220 I52 0.0 0.1- 200311 F52 0.5- 0.0
200216 G96 0.5+ 1.1+ 200220 I52 0.2+ 0.0 200311 F52 0.1+ 0.1-
200216 G96 (2.0- 2.6-) 200221 807 0.0 0.0 200311 F52 0.4- 0.1+
200216 I52 0.2- 0.1+ 200221 807 0.1+ 0.2+ 200315 I52 0.1- 0.3-
200216 I52 0.3+ 0.0 200221 807 0.2- 0.0 200315 I52 1.0+ 0.1+
200216 I52 0.3- 0.2- 200221 654 0.0 0.3- 200315 I52 1.5+ 0.2-
200216 I52 0.1- 0.1+ 200221 654 0.0 0.0 200317 691 0.7- 0.5-
200216 L01 0.5+ 0.1+ 200221 654 0.1+ 0.1- 200317 691 0.5- 0.1+
200216 L01 0.5- 0.6+ 200221 654 0.1- 0.1- 200317 691 0.8- 1.1+
200216 L01 0.6- 0.5- 200225 G96 0.0 0.1+ 200322 F51 0.0 0.0
200217 H21 1.0- 0.2+ 200225 G96 0.1- 0.1- 200322 F51 0.1+ 0.1-
200217 H21 0.7- 0.2+ 200225 G96 0.2+ 0.3- 200322 F51 0.1- 0.0
200217 H21 0.9- 0.6+ 200225 G96 0.4- 0.3+ 200322 F51 0.0 0.0
200217 691 0.1- 0.1- 200225 I52 0.1- 0.3- 200322 658 0.2+ 1.5-
200217 I52 0.4+ 0.4- 200225 I52 0.0 0.1+ 200322 658 0.3+ 1.4-
200217 691 0.2- 0.1+ 200225 654 0.1- 0.2+ 200322 658 0.3+ 1.3-
200217 I52 0.7+ 0.1- 200225 654 0.1- 0.2- 200322 658 0.0 1.3-
200217 I52 0.1- 0.0 200229 I52 0.2+ 0.4- 200322 658 0.1+ 1.1-
200217 I52 0.1- 0.1- 200229 I52 0.3+ 0.1+ 200416 H21 0.0 1.1-
200217 474 0.2+ 0.5- 200229 I52 0.4+ 0.3- 200416 H21 0.0 1.0-
200217 474 0.4+ 0.2- 200229 I52 0.2- 0.1- 230220 J04 0.2+ 0.0
200218 I52 0.2- 0.1+ 200302 807 0.2+ 0.2+ 230220 J04 0.2+ 0.4+
200218 I52 0.1- 0.3- 200302 807 0.1+ 0.0 230220 J04 0.1- 0.5+
200218 I52 0.0 0.2- 200302 807 0.2- 0.0
Ephemeris:
2020 DQ a,e,i = 2.04, 0.41, 6 q = 1.2072
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 01 22 12 48 58.4 -12 44 16 0.5177 1.2250 105.0 50.9 22.3
...
2023 02 06 13 23 12.1 -13 21 37 0.4926 1.2585 112.3 46.4 22.2
...
2023 02 14 13 36 53.0 -12 58 46 0.4811 1.2825 117.5 43.1 22.1
...
2023 02 20 13 44 41.5 -12 22 10 0.4735 1.3031 122.0 40.0 22.0
2023 02 21 13 45 46.6 -12 14 29 0.4724 1.3067 122.8 39.5 22.0
2023 02 22 13 46 47.9 -12 06 20 0.4713 1.3103 123.6 38.9 21.9
...
2023 02 28 13 51 35.4 -11 08 35 0.4659 1.3334 128.9 35.3 21.9
...
2023 03 08 13 54 26.8 -09 30 11 0.4623 1.3666 136.8 29.8 21.7
...
2023 03 23 13 49 55.4 -05 41 05 0.4722 1.4352 153.7 17.9 21.5
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-D38
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