MPEC 2021-E43 : 2021 EC1
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M.P.E.C. 2021-E43 Issued 2021 March 7, 01:15 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 EC1
Observations:
K21E01C* C2021 03 06.43013913 16 25.45 +13 28 47.4 19.99GVEE043G96
K21E01C C2021 03 06.44039713 16 10.66 +13 27 12.3 VEE043G96
K21E01C C2021 03 06.44558013 16 03.19 +13 26 23.9 20.10GVEE043G96
K21E01C C2021 03 06.45072613 15 55.79 +13 25 35.7 19.97GVEE043G96
K21E01C KC2021 03 06.50764 13 14 34.58 +13 16 43.9 19.7 RoEE043691
K21E01C KC2021 03 06.51710813 14 20.98 +13 15 11.1 19.53GVEE043I52
K21E01C KC2021 03 06.51713 13 14 21.16 +13 15 13.9 19.4 RoEE043691
K21E01C KC2021 03 06.51825113 14 19.34 +13 15 00.4 19.27GVEE043I52
K21E01C KC2021 03 06.52054113 14 16.13 +13 14 38.5 19.38GVEE043I52
K21E01C KC2021 03 06.52629 13 14 08.19 +13 13 47.0 20.0 RoEE043691
K21E01C C2021 03 06.53104913 14 01.28 +13 12 58.9 19.69GVEE043G96
K21E01C C2021 03 06.53133913 14 00.93 +13 12 56.6 19.77GVEE043G96
K21E01C C2021 03 06.53162813 14 00.47 +13 12 53.4 19.98GVEE043G96
K21E01C C2021 03 06.53191913 14 00.05 +13 12 50.2 19.62GVEE043G96
K21E01C 1C2021 03 06.92664913 05 36.92 +12 10 29.0 VEE043246
K21E01C 1C2021 03 06.92688313 05 36.59 +12 10 25.7 VEE043246
K21E01C 1C2021 03 06.92730413 05 35.96 +12 10 22.7 VEE043246
K21E01C 1C2021 03 06.92750513 05 35.72 +12 10 20.7 VEE043246
K21E01C 1C2021 03 06.92794613 05 35.13 +12 10 16.5 VEE043246
K21E01C KC2021 03 06.94944713 05 06.88 +12 07 17.2 20.2 GVEE043K63
K21E01C KC2021 03 06.96128713 04 50.42 +12 05 27.6 19.2 GVEE043K63
K21E01C KC2021 03 06.96821913 04 40.77 +12 04 23.2 18.7 GVEE043K63
K21E01C 1C2021 03 06.99315 13 04 05.18 +12 00 06.4 20.3 VVEE043033
K21E01C 1C2021 03 06.99395 13 04 04.05 +11 59 58.9 20.2 VVEE043033
K21E01C 1C2021 03 06.99476 13 04 02.93 +11 59 51.3 20.4 VVEE043033
K21E01C KC2021 03 06.99493713 04 02.74 +12 00 10.2 19.9 GVEE043595
K21E01C KC2021 03 07.00404413 03 50.03 +11 58 45.6 19.8 GVEE043595
K21E01C KC2021 03 07.01314513 03 37.32 +11 57 20.6 19.8 GVEE043595
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + CCD.
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha, M. Honkova.
Measurer M. Tichy. 1.06-m f/2.7 reflector + 2048x2048 CCD.
595 Farra d'Isonzo. Observers S. Aschi, E. Pettarin. Measurer S. Aschi.
0.40-m f/5.15 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer T. H. Bressi. 0.9-m
f/3 reflector + CCD.
G96 Mt. Lemmon Survey. 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. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.41-m
f/3.2 Newtonian reflector + CCD.
Orbital elements:
2021 EC1 Earth MOID = 0.0259 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 29.40485 (2000.0) P Q
n 1.10767130 Peri. 42.48435 +0.83547021 -0.54906056
a 0.9251144 Node 350.73589 +0.45833154 +0.71914636
e 0.1737491 Incl. 8.15919 +0.30318596 +0.42586502
P 0.89 H 26.2 G 0.15 U 7
Residuals in seconds of arc
210306 G96 0.2- 0.1- 210306 G96 0.5- 0.0 210306 K63 0.2- 0.3+
210306 G96 0.2- 0.2+ 210306 G96 0.3+ 0.5+ 210306 K63 0.5- 0.2-
210306 G96 0.2- 0.0 210306 G96 0.4- 0.0 210306 033 0.4+ 0.1+
210306 G96 0.1- 0.2- 210306 G96 0.6- 0.4- 210306 033 0.1+ 0.1+
210306 691 0.6+ 0.3+ 210306 246 0.3+ 0.0 210306 033 0.1+ 0.0
210306 I52 0.1- 0.1- 210306 246 0.2+ 1.2- 210306 595 0.1- 0.4+
210306 691 1.2+ 0.2+ 210306 246 0.6- 0.3- 210307 595 0.1- 0.4+
210306 I52 0.5- 0.0 210306 246 0.0 0.5- 210307 595 0.1- 0.1+
210306 I52 0.1- 0.2- 210306 246 0.2+ 0.6-
210306 691 0.9+ 0.2+ 210306 K63 0.4+ 1.0+
Ephemeris:
2021 EC1 a,e,i = 0.93, 0.17, 8 q = 0.7644
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 02 05 18 39 04.7 +27 10 55 0.09424 0.9383 57.3 117.9 25.6
...
2021 02 20 17 18 40.1 +28 41 57 0.05408 0.9820 81.3 95.5 23.2
...
2021 02 28 15 34 23.1 +25 26 00 0.03658 1.0030 109.0 69.0 21.4
...
2021 03 06 13 26 08.4 +14 35 54 0.03112 1.0175 144.5 34.5 20.1
2021 03 07 13 03 52.7 +12 02 08 0.03132 1.0198 151.0 28.1 20.0
2021 03 08 12 42 27.4 +09 25 32 0.03186 1.0221 157.5 21.8 19.8
...
2021 03 14 11 02 53.9 -03 38 02 0.04131 1.0348 169.7 9.9 20.0
...
2021 03 22 09 58 05.9 -11 47 27 0.06330 1.0498 146.6 31.5 21.7
...
2021 04 06 09 21 55.8 -16 21 42 0.1131 1.0709 125.9 49.2 23.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-E43
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