MPEC 2021-E105 : 2021 EH3
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M.P.E.C. 2021-E105 Issued 2021 March 10, 23:00 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 EH3
Observations:
K21E03H* C2021 03 10.29216111 08 05.00 +29 24 26.0 19.11GVEE105G96
K21E03H C2021 03 10.29733611 07 58.95 +29 19 58.9 20.43GVEE105G96
K21E03H C2021 03 10.30251311 07 53.00 +29 15 36.8 19.23GVEE105G96
K21E03H C2021 03 10.30777611 07 46.84 +29 11 04.8 20.12GVEE105G96
K21E03H KC2021 03 10.32698111 07 24.86 +28 54 45.8 18.94GVEE105I52
K21E03H KC2021 03 10.32777011 07 23.94 +28 54 05.7 19.09GVEE105I52
K21E03H KC2021 03 10.32855811 07 23.03 +28 53 25.2 18.79GVEE105I52
K21E03H KC2021 03 10.32934811 07 22.12 +28 52 44.5 18.79GVEE105I52
K21E03H KC2021 03 10.44031311 05 18.88 +27 17 03.2 18.83GVEE105I52
K21E03H KC2021 03 10.44122511 05 17.92 +27 16 15.6 18.99GVEE105I52
K21E03H KC2021 03 10.44213611 05 16.93 +27 15 27.9 18.72GVEE105I52
K21E03H KC2021 03 10.71830 11 01 24.70 +23 18 40.5 19.4 GVEE105N88
K21E03H KC2021 03 10.71896 11 01 24.04 +23 18 07.1 19.3 GVEE105N88
K21E03H KC2021 03 10.83593510 59 50.15 +21 37 40.2 18.9 GVEE105L01
K21E03H KC2021 03 10.83707910 59 49.08 +21 36 42.2 19.0 GVEE105L01
K21E03H KC2021 03 10.83822910 59 47.96 +21 35 43.9 18.8 GVEE105L01
K21E03H KC2021 03 10.83944810 59 46.76 +21 34 41.9 19.0 GVEE105L01
K21E03H KC2021 03 10.84052410 59 45.72 +21 33 47.5 19.2 GVEE105L01
K21E03H KC2021 03 10.85147010 59 35.04 +21 24 28.8 19.1 GVEE105595
K21E03H KC2021 03 10.85898310 59 27.73 +21 18 07.2 19.1 GVEE105595
K21E03H KC2021 03 10.86556610 59 21.31 +21 12 33.4 19.0 GVEE105595
Observer details:
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
G96 Mt. Lemmon Survey. Observer D. C. Fuls. 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 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. 1.0-m reflector +
CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
N88 Xingming Observatory #3, Nanshan. Observer X. Gao. Measurer Q.-Z. Ye.
0.6-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2021 EH3 Earth MOID = 0.0211 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 324.72083 (2000.0) P Q
n 0.68272724 Peri. 143.39635 -0.70298571 -0.70983110
a 1.2773343 Node 350.96689 +0.56738196 -0.52229692
e 0.2340201 Incl. 16.33911 +0.42882257 -0.47259469
P 1.44 H 26.6 G 0.15 U 7
Residuals in seconds of arc
210310 G96 0.1+ 0.1- 210310 I52 (0.7+ 1.7+) 210310 L01 0.2+ 0.3+
210310 G96 (0.6- 3.0-) 210310 I52 0.0 0.7+ 210310 L01 0.2+ 0.3+
210310 G96 0.0 0.7- 210310 I52 0.1+ 0.6+ 210310 L01 0.1- 0.0
210310 G96 (1.0- 3.5-) 210310 I52 0.3- 0.3+ 210310 L01 0.1- 0.2+
210310 I52 (1.0+ 1.5+) 210310 N88 0.0 1.1- 210310 595 0.1+ 0.3+
210310 I52 (0.8+ 1.9+) 210310 N88 0.2+ 0.7- 210310 595 0.0 0.3-
210310 I52 (0.7+ 1.9+) 210310 L01 0.3- 0.3+ 210310 595 0.2- 0.1-
Ephemeris:
2021 EH3 a,e,i = 1.28, 0.23, 16 q = 0.9784
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 02 08 20 34 51.5 +66 49 20 0.1640 0.9785 82.5 88.0 25.7
...
2021 02 23 19 42 31.7 +72 29 43 0.08856 0.9879 86.5 88.3 24.4
...
2021 03 03 16 24 33.7 +77 32 33 0.04744 0.9993 98.4 78.9 22.7
...
2021 03 09 11 33 29.8 +46 38 45 0.02355 1.0104 137.8 41.3 20.1
2021 03 10 11 13 05.3 +33 31 57 0.02214 1.0124 150.6 28.8 19.6
2021 03 11 10 57 17.3 +19 22 22 0.02213 1.0145 163.1 16.5 19.2
...
2021 03 17 10 09 49.6 -30 53 54 0.04280 1.0283 140.3 38.2 21.3
...
2021 03 25 09 50 43.7 -45 31 48 0.08501 1.0493 125.9 50.4 23.2
...
2021 04 09 09 49 07.4 -50 59 25 0.1680 1.0952 120.0 52.4 24.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-E105
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