MPEC 2021-D66 : 2021 DP1
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M.P.E.C. 2021-D66 Issued 2021 February 20, 10:06 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 DP1
Observations:
K21D01P C2021 02 18.77483 08 36 36.50 +21 55 18.3 19.3 RoED066K88
K21D01P C2021 02 18.77629 08 36 37.32 +21 55 07.0 19.2 RoED066K88
K21D01P* C2021 02 19.24524008 41 32.46 +20 52 43.6 19.44GVED066G96
K21D01P C2021 02 19.25789708 41 39.90 +20 50 52.1 19.35GVED066G96
K21D01P C2021 02 19.26346008 41 43.18 +20 50 02.7 19.37GVED066G96
K21D01P C2021 02 19.26900908 41 46.42 +20 49 13.3 19.55GVED066G96
K21D01P KC2021 02 19.35199708 42 36.56 +20 36 31.2 18.94GVED066I52
K21D01P KC2021 02 19.35347608 42 37.49 +20 36 17.1 19.03GVED066I52
K21D01P KC2021 02 19.35495508 42 38.40 +20 36 03.2 18.91GVED066I52
K21D01P KC2021 02 19.75282808 48 02.95 +19 30 09.7 18.2 GVED066L34
K21D01P KC2021 02 19.78194208 48 24.55 +19 25 12.4 18.4 GVED066L34
K21D01P KC2021 02 19.79707908 48 35.73 +19 22 35.8 19.0 GVED066L34
K21D01P KC2021 02 19.82512508 48 56.34 +19 17 42.5 18.7 GVED066L34
K21D01P KC2021 02 19.89186808 49 45.01 +19 05 26.1 19.2 GVED066L74
K21D01P KC2021 02 19.90322208 49 53.43 +19 03 20.3 18.7 GVED066L74
K21D01P KC2021 02 19.91494608 50 02.09 +19 01 09.7 19.0 GVED066L74
K21D01P KC2021 02 20.03338 08 51 58.60 +18 38 31.4 18.8 GVED066W34
K21D01P KC2021 02 20.04154 08 52 05.30 +18 36 59.1 18.6 GVED066W34
K21D01P KC2021 02 20.04885 08 52 11.16 +18 35 36.6 18.7 GVED066W34
K21D01P KC2021 02 20.08295908 52 38.60 +18 29 05.6 18.9 GVED066W33
K21D01P KC2021 02 20.08354608 52 39.86 +18 28 31.6 19.0 VuED066H21
K21D01P KC2021 02 20.08645908 52 42.22 +18 27 57.8 19.0 VuED066H21
K21D01P KC2021 02 20.08946608 52 44.65 +18 27 23.1 18.9 VuED066H21
K21D01P KC2021 02 20.09742208 52 50.17 +18 26 16.5 19.1 GVED066W33
K21D01P KC2021 02 20.11200908 53 01.79 +18 23 25.6 18.8 GVED066W33
K21D01P KC2021 02 20.14180008 53 32.41 +18 17 14.2 19.1 VqED066858
K21D01P KC2021 02 20.14599908 53 35.86 +18 16 24.1 19.0 VqED066858
K21D01P KC2021 02 20.15019108 53 39.31 +18 15 34.2 19.0 VqED066858
K21D01P C2021 02 20.15991608 53 48.78 +18 13 48.0 18.48GVED066I52
K21D01P C2021 02 20.16010708 53 48.97 +18 13 45.8 18.71GVED066I52
K21D01P C2021 02 20.16029708 53 49.11 +18 13 43.4 18.95GVED066I52
K21D01P C2021 02 20.16048508 53 49.26 +18 13 41.2 18.68GVED066I52
K21D01P KC2021 02 20.26814 08 55 12.83 +17 50 50.7 19.0 GVED066H36
K21D01P KC2021 02 20.27180 08 55 15.89 +17 50 03.2 19.0 GVED066H36
K21D01P KC2021 02 20.27643 08 55 19.79 +17 49 03.5 18.9 GVED066H36
K21D01P KC2021 02 20.27935 08 55 22.29 +17 48 25.1 18.9 GVED066H36
Observer details:
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers D. Rankin, 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.
K88 GINOP-KHK, Piszkesteto. Observer C. Kalup. Measurer K. Sarneczky.
0.60-m Schmidt + CCD.
L34 Galhassin Robotic Telescope, Isnello. Observer A. Nastasi. 0.40-m
reflector + CCD.
L74 AstroColauri, Naples. Observer G. Morra.
W33 Transit Dreams Observatory, Campobello. Observer D. Wilde. 0.36-m
Schmidt-Cassegrain + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. Measurers
R. L. Flynn, J. Gerlach. 0.36-m Schmidt-Cassegrain + CCD.
Orbital elements:
2021 DP1 Earth MOID = 0.0074 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 336.92365 (2000.0) P Q
n 0.26465787 Peri. 207.48992 -0.99942355 -0.02141561
a 2.4025891 Node 331.24627 +0.03084784 -0.89686482
e 0.5959906 Incl. 3.13917 -0.01417672 -0.44178601
P 3.72 H 25.81 G 0.15 U 7
Residuals in seconds of arc
210218 K88 0.2- 0.4+ 210219 L34 0.2- 0.3+ 210220 W33 0.2- 0.7+
210218 K88 0.1+ 0.3- 210219 L34 0.0- 0.8+ 210220 858 0.0- 0.2+
210219 G96 0.0+ 0.1- 210219 L74 0.1- 0.7- 210220 858 0.1+ 0.0-
210219 G96 0.1+ 0.0- 210219 L74 0.4+ 0.7- 210220 858 0.3+ 0.0+
210219 G96 0.3+ 0.0- 210219 L74 0.0+ 0.6- 210220 I52 0.3- 0.1+
210219 G96 0.1- 0.0+ 210220 W34 0.9- 0.8- 210220 I52 0.2+ 0.1+
210219 I52 0.1- 0.0- 210220 W34 0.4+ 0.9- 210220 I52 0.0- 0.0+
210219 I52 0.0- 0.2- 210220 W34 0.4- 0.2- 210220 I52 0.0- 0.1+
210219 I52 0.2- 0.1- 210220 W33 0.2- 0.2+ 210220 H36 0.1+ 0.4-
210219 L34 0.9+ 0.4+ 210220 H21 0.1+ 0.2- 210220 H36 0.1- 0.5-
210219 L34 0.9+ 0.4+ 210220 H21 0.0- 0.0- 210220 H36 0.1- 0.1-
210219 L34 0.2- 0.3+ 210220 H21 0.1- 0.2+ 210220 H36 0.4+ 0.5-
210219 L34 0.2- 0.3+ 210220 W33 0.0- 0.2-
Ephemeris:
2021 DP1 a,e,i = 2.40, 0.60, 3 q = 0.9707
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 21 07 51 30.2 +30 40 56 0.2053 1.1858 168.3 9.7 23.4
...
2021 02 05 07 53 30.2 +30 15 29 0.1108 1.0885 156.7 21.0 22.2
...
2021 02 13 08 05 12.2 +28 03 55 0.06548 1.0458 152.4 26.0 21.2
...
2021 02 19 08 38 47.8 +21 28 14 0.03334 1.0191 156.1 23.2 19.6
2021 02 20 08 51 14.4 +18 47 09 0.02828 1.0151 158.7 20.7 19.1
2021 02 21 09 08 23.4 +14 52 15 0.02343 1.0113 162.7 16.9 18.6
...
2021 02 27 15 38 14.0 -45 46 11 0.01745 0.9918 94.5 84.5 20.0
...
2021 03 07 18 31 00.8 -40 04 18 0.05727 0.9752 71.0 105.8 23.5
...
2021 03 22 19 09 45.3 -36 27 08 0.1350 0.9756 77.3 94.9 24.8
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-D66
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