[Iaude] MPEC H41: 2021 GD3 [a=1.31,e=0.21,i=4.0,H=26.95]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Fri Apr 19 10:11:17 EDT 2024
M.P.E.C. 2024-H41 Issued 2024 April 19, 14:09 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 GD3
Revision to MPEC 2021-G81
Additional Observations:
K21G03D KC2024 04 16.21194611 19 24.650+21 23 29.33 20.65GVEH041I52
K21G03D KC2024 04 16.21736211 19 25.129+21 22 55.56 21.03GVEH041I52
K21G03D KC2024 04 16.22276711 19 25.615+21 22 21.94 20.95GVEH041I52
K21G03D KC2024 04 16.22817811 19 26.130+21 21 47.74 21.44GVEH041I52
K21G03D 0C2024 04 17.39268311 22 56.220+19 15 41.59 21.46GVEH041T12
K21G03D 0C2024 04 17.39871511 22 56.851+19 14 59.29 21.65GVEH041T12
K21G03D 0C2024 04 17.40522311 22 57.544+19 14 13.46 21.57GVEH041T12
Observer details:
I52 Steward Observatory, Mt. Lemmon Station. Observers T. Beuden, J. B.
Fazekas. Measurers T. Beuden, V. F. Carvajal, 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, F. C.
Shelly, K. W. Wierzchos. 1.0-m prime focus + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240416 I52 0.77- 0.20- 240417 T12 0.81- 0.24- MPO622436 +0.00 days
Orbital elements:
2021 GD3 Earth MOID = 0.0251 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 345.03957 (2000.0) P Q
n 0.65583394 Peri. 177.94505 -0.85103679 +0.52370103
a 1.3120190 Node 33.72514 -0.48275621 -0.75154487
e 0.2142938 Incl. 3.96463 -0.20659821 -0.40114529
P 1.50 H 26.95 G 0.15 U 0
Residuals in seconds of arc
210405 G96 0.3- 0.0 210408 F51 0.1+ 0.1- 210420 I52 0.1- 0.2-
210405 G96 0.1- 0.0 210408 F51 0.2+ 0.2- 210420 I52 0.2- 0.2+
210405 G96 0.5- 0.3+ 210408 F51 0.1+ 0.0 210420 I52 0.1+ 0.1+
210405 H01 0.1+ 0.0 210412 033 0.4- 0.1- 210420 I52 0.0 0.1-
210405 H01 0.0 0.1- 210412 033 0.1- 0.2+ 210423 291 0.2+ 0.3-
210405 H01 0.1+ 0.1- 210412 033 0.0 0.2+ 210423 291 0.2+ 0.3-
210405 H01 0.1+ 0.1- 210412 033 0.2+ 0.2+ 210423 291 0.2+ 0.1-
210405 V06 0.1- 0.0 210413 I52 0.3+ 0.1- 210425 I52 0.6- 0.3-
210405 V06 0.1- 0.2- 210413 I52 0.0 0.1- 210425 I52 (1.2- 0.5+)
210405 V06 0.1- 0.2- 210413 I52 0.2- 0.2- 210425 I52 0.4+ 0.1+
210406 I52 0.4+ 0.1+ 210413 I52 0.0 0.2+ 240416 I52 0.5+ 0.2+
210406 I52 0.2- 0.3- 210417 I52 0.0 0.4+ 240416 I52 0.2+ 0.2+
210406 H21 0.7- 0.3+ 210417 I52 0.3- 0.3- 240416 I52 0.1- 0.3+
210406 H21 0.6- 0.1+ 210417 I52 0.1+ 0.1- 240416 I52 0.0 0.0
210407 H21 0.2+ 0.1- 210419 734 1.0+ 0.6- 240417 T12 0.1- 0.1+
210407 H21 0.5+ 0.0 210419 734 0.7+ 0.5- 240417 T12 0.1- 0.1+
210407 I52 0.5- 0.3+ 210419 734 0.6+ 0.8+ 240417 T12 0.1- 0.1+
210407 I52 0.7+ 0.7+ 210419 734 (1.8- 2.5-)
210407 I52 0.1+ 0.4+ 210419 734 (3.8- 0.4+)
Ephemeris:
2021 GD3 a,e,i = 1.31, 0.21, 4 q = 1.0309
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 03 20 10 53 00.7 +39 15 21 0.08873 1.0636 138.2 38.6 23.4
...
2024 04 04 10 57 21.1 +34 36 54 0.06076 1.0413 131.4 46.1 22.7
...
2024 04 12 11 08 56.5 +27 32 41 0.04723 1.0343 131.5 46.5 22.2
...
2024 04 18 11 25 00.6 +18 04 57 0.03828 1.0315 135.1 43.4 21.6
2024 04 19 11 28 28.8 +16 00 23 0.03696 1.0313 136.0 42.5 21.5
2024 04 20 11 32 12.4 +13 45 43 0.03570 1.0311 137.1 41.5 21.4
...
2024 04 26 12 00 42.1 -03 29 09 0.03002 1.0311 145.5 33.6 20.8
...
2024 05 04 12 58 29.6 -32 00 25 0.02976 1.0344 151.0 28.2 20.6
...
2024 05 19 15 29 21.1 -58 33 47 0.04933 1.0505 141.1 37.2 22.0
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-H41
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