MPEC 2021-D76 : 2021 DY1
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M.P.E.C. 2021-D76 Issued 2021 February 22, 08:54 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 DY1
Observations:
K21D01Y* C2021 02 19.31962110 24 40.21 +19 50 04.2 20.87GVED076G96
K21D01Y C2021 02 19.32526610 24 43.38 +19 49 55.3 21.18GVED076G96
K21D01Y C2021 02 19.33091610 24 46.49 +19 49 47.2 21.63GVED076G96
K21D01Y C2021 02 19.33656510 24 49.67 +19 49 37.9 21.64GVED076G96
K21D01Y KC2021 02 19.42013410 25 36.02 +19 47 22.4 20.94GVED076V06
K21D01Y KC2021 02 19.42546610 25 38.96 +19 47 13.1 20.50GVED076V06
K21D01Y KC2021 02 20.24087910 33 17.54 +19 27 15.2 21.63GVED076I52
K21D01Y KC2021 02 20.24591010 33 19.98 +19 27 08.4 21.25GVED076I52
K21D01Y KC2021 02 20.25093710 33 22.29 +19 27 02.0 20.73GVED076I52
K21D01Y KC2021 02 21.21225310 40 49.77 +19 05 30.0 21.44GVED076I52
K21D01Y KC2021 02 21.21814110 40 52.02 +19 05 23.0 20.82GVED076I52
K21D01Y KC2021 02 21.22401410 40 54.35 +19 05 17.1 21.38GVED076I52
K21D01Y KC2021 02 22.29725610 47 45.67 +18 43 53.3 21.54GVED076I52
K21D01Y KC2021 02 22.30313210 47 47.48 +18 43 47.6 21.38GVED076I52
K21D01Y KC2021 02 22.30901310 47 49.31 +18 43 41.1 21.54GVED076I52
Observer details:
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.
V06 Catalina Sky Survey-Kuiper. Observer D. Rankin. 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. 1.55-m reflector +
1K CCD.
Orbital elements:
2021 DY1 Earth MOID = 0.0072 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 352.65289 (2000.0) P Q
n 0.25868747 Peri. 321.04530 -0.24665480 -0.96810267
a 2.4394156 Node 143.17416 +0.90649557 -0.24654706
e 0.6205625 Incl. 4.21265 +0.34267652 -0.04462912
P 3.81 H 26.56 G 0.15 U 8
Residuals in seconds of arc
210219 G96 0.1- 0.1+ 210219 V06 0.1- 0.5- 210221 I52 0.5- 0.2-
210219 G96 0.2+ 0.1- 210220 I52 0.6- 0.1+ 210221 I52 0.0+ 0.6+
210219 G96 0.3- 0.6+ 210220 I52 0.7+ 0.2- 210222 I52 0.2+ 0.6-
210219 G96 0.1+ 0.1+ 210220 I52 0.3+ 0.1- 210222 I52 0.0- 0.2+
210219 V06 0.1+ 0.1- 210221 I52 0.2+ 0.1+ 210222 I52 0.1- 0.2+
Ephemeris:
2021 DY1 a,e,i = 2.44, 0.62, 4 q = 0.9256
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 23 00 40 08.7 -11 16 48 0.1253 0.9335 62.7 110.4 26.1
...
2021 02 07 02 51 42.0 +01 16 02 0.03507 0.9826 83.0 95.0 22.6
...
2021 02 15 09 09 06.1 +21 52 17 0.03768 1.0243 166.0 13.5 20.3
...
2021 02 21 10 39 12.7 +19 10 40 0.07334 1.0612 169.9 9.4 21.6
2021 02 22 10 45 56.7 +18 50 04 0.07986 1.0678 169.5 9.7 21.8
2021 02 23 10 51 37.1 +18 31 30 0.08647 1.0744 169.2 9.9 22.0
...
2021 03 01 11 12 27.9 +17 09 48 0.1278 1.1164 168.7 10.0 23.0
...
2021 03 09 11 24 27.5 +15 59 54 0.1872 1.1768 168.5 9.7 23.9
...
2021 03 24 11 33 36.8 +14 13 49 0.3146 1.2994 161.8 13.9 25.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-D76
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