MPEC 2023-F111 : 2020 DN1
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M.P.E.C. 2023-F111 Issued 2023 March 22, 20:46 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 DN1
Revision to MPEC 2020-D60
This MPEC is being reissued, as its first publication (MPEC 2023-F50)
was overwritten by another MPEC using that same identifier.
Additional Observations:
K20D01N C2017 01 21.24043404 26 05.178+03 22 32.77 21.86GVEF111F51
K20D01N C2017 01 21.27567204 26 07.167+03 22 43.83 22.14GVEF111F51
K20D01N C2017 01 24.26488404 29 42.724+03 40 31.12 22.34GVEF111F51
K20D01N C2017 01 24.27637004 29 43.503+03 40 35.28 22.04GVEF111F51
K20D01N C2023 03 19.39038811 56 13.018-08 31 18.94 20.78wUEF111F52
K20D01N C2023 03 19.40181311 56 13.164-08 31 04.62 21.44wUEF111F52
K20D01N C2023 03 19.41325511 56 13.310-08 30 50.50 21.17wUEF111F52
K20D01N C2023 03 19.42469811 56 13.444-08 30 36.17 21.18wUEF111F52
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, T. Lowe, A. Schultz, I.
Smith. Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170121 F51 1.63+ 0.28+ 230319 F52 2.80+ 0.83+ E2020-HL1 -0.92 days
Orbital elements:
2020 DN1 Earth MOID = 0.2244 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 9.48321 (2000.0) P Q
n 0.33272353 Peri. 296.46671 -0.71409416 -0.69931876
a 2.0625938 Node 199.21653 +0.67190541 -0.67184635
e 0.4225360 Incl. 5.57601 +0.19650102 -0.24408145
P 2.96 H 22.61 G 0.15 U 1
Residuals in seconds of arc
170121 F51 0.1+ 0.3+ 200218 I52 0.1+ 0.3+ 200225 I52 0.6- 0.2+
170121 F51 0.2- 0.1+ 200218 I52 0.1+ 0.1- 200227 G96 0.2- 0.2+
170124 F51 0.2+ 0.1+ 200218 033 0.7- 1.0- 200227 G96 0.0 0.0
170124 F51 0.1- 0.2- 200218 033 0.3- 0.3- 200227 G96 0.8+ 0.5+
200217 G96 0.1+ 0.4- 200219 H21 0.0 0.1+ 200227 G96 0.2- 0.2+
200217 G96 0.1+ 0.1- 200219 H21 0.0 0.4+ 200313 807 0.2- 0.4-
200217 G96 0.0 0.1- 200219 I52 0.1- 0.1- 200313 807 0.1- 0.9-
200217 G96 0.2- 0.0 200219 I52 0.3+ 0.2- 200313 807 0.0 0.9-
200217 I52 0.2- 0.4- 200222 807 0.1+ 0.0 200316 807 0.2- 0.1+
200217 I52 0.1+ 0.2- 200222 807 0.2+ 0.0 200316 807 0.3- 0.1-
200217 I52 0.3+ 0.1+ 200225 807 0.1+ 0.1- 200316 807 0.1+ 0.3+
200218 807 0.1- 0.0 200225 807 0.2+ 0.1- 230319 F52 0.0 0.1+
200218 807 0.0 0.0 200225 807 0.2+ 0.0 230319 F52 0.0 0.2+
200218 807 0.0 0.0 200225 I52 0.3- 0.4+ 230319 F52 0.1+ 0.0
200218 I52 0.0 0.6+ 200225 I52 0.3- 0.1- 230319 F52 0.0 0.0
200218 I52 0.3- 0.2- 200225 I52 0.3+ 0.4+
Ephemeris:
2020 DN1 a,e,i = 2.06, 0.42, 6 q = 1.1911
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 20 11 35 31.6 -16 34 28 0.2640 1.2150 145.3 27.6 21.4
...
2023 03 07 11 49 54.4 -12 46 35 0.2759 1.2534 158.9 16.6 21.2
...
2023 03 15 11 54 21.1 -10 03 29 0.2919 1.2802 166.8 10.2 21.1
...
2023 03 21 11 56 49.6 -07 57 36 0.3092 1.3028 171.9 6.2 21.1
2023 03 22 11 57 12.0 -07 37 01 0.3125 1.3067 172.6 5.7 21.1
2023 03 23 11 57 34.2 -07 16 38 0.3160 1.3107 173.1 5.3 21.1
...
2023 03 29 11 59 45.9 -05 20 34 0.3398 1.3357 172.5 5.6 21.3
...
2023 04 06 12 03 01.2 -03 08 56 0.3793 1.3716 166.1 10.1 21.8
...
2023 04 21 12 11 23.1 -00 29 12 0.4772 1.4448 152.5 18.7 22.8
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-F111
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