[Iaude] MPEC E42: 2018 EC1 [a=1.14,e=0.23,i=11.4,H=26.3]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Fri Mar 9 16:39:16 EST 2018
M.P.E.C. 2018-E42 Issued 2018 Mar. 9, 21:35 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 EC1
Observations:
K18E01C* C2018 03 07.33938 11 21 05.686+22 04 49.16 21.9 wUEE042F51
K18E01C C2018 03 07.35103 11 21 00.517+22 03 55.95 21.2 wUEE042F51
K18E01C C2018 03 07.36266 11 20 55.342+22 03 02.94 21.2 wUEE042F51
K18E01C C2018 03 07.37431 11 20 50.114+22 02 09.29 21.2 wUEE042F51
K18E01C C2018 03 07.48846 11 19 53.14 +21 52 18.9 21.4 GUEE042I52
K18E01C C2018 03 07.49096 11 19 52.02 +21 52 06.8 20.7 GUEE042I52
K18E01C C2018 03 07.49347 11 19 50.89 +21 51 54.3 21.3 GUEE042I52
K18E01C KC2018 03 07.50366 11 19 46.60 +21 51 03.5 21.3 RoEE042291
K18E01C KC2018 03 07.50622 11 19 45.53 +21 50 50.7 21.2 RoEE042291
K18E01C KC2018 03 07.50880 11 19 44.41 +21 50 37.9 20.8 RoEE042291
K18E01C _C2018 03 08.34452911 13 57.979+20 38 58.73 20.9 GUEE042568
K18E01C _C2018 03 08.34547711 13 57.505+20 38 53.63 21.5 GUEE042568
K18E01C _C2018 03 08.34642711 13 57.034+20 38 48.51 21.2 GUEE042568
K18E01C C2018 03 09.30003 11 06 14.52 +19 02 39.0 21.0 GUEE042I52
K18E01C C2018 03 09.30560 11 06 11.38 +19 02 02.7 20.1 GUEE042I52
K18E01C C2018 03 09.31118 11 06 08.18 +19 01 26.7 20.8 GUEE042I52
K18E01C C2018 03 09.31675 11 06 05.05 +19 00 50.3 19.8 GUEE042I52
Observer details:
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observers R. J. Wainscoat, C. Wipper. Measurers M. Micheli,
R. Weryk. 3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers B. M. Africano,
D. C. Fuls, J. A. Johnson. Measurers B. M. Africano, E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector
+ CCD.
Orbital elements:
2018 EC1 Earth MOID = 0.0275 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 313.56090 (2000.0) P Q
n 0.80936598 Peri. 259.58185 -0.32390542 +0.94562247
a 1.1403533 Node 351.34227 -0.77229185 -0.28241994
e 0.2309720 Incl. 11.38783 -0.54648932 -0.16136020
P 1.22 H 26.3 G 0.15 U 7
Residuals in seconds of arc
180307 F51 0.1- 0.0 180307 I52 1.1- 0.1+ 180308 568 0.0 0.1+
180307 F51 0.2- 0.1- 180307 291 0.1+ 0.4- 180309 I52 0.1+ 0.2-
180307 F51 0.1+ 0.2+ 180307 291 0.5+ 0.2- 180309 I52 0.2+ 0.2-
180307 F51 0.2+ 0.2+ 180307 291 0.3+ 0.2+ 180309 I52 0.3- 0.2+
180307 I52 0.1+ 0.7- 180308 568 0.1- 0.1+ 180309 I52 0.0 0.2+
180307 I52 0.4- 0.1- 180308 568 0.1- 0.1+
Ephemeris:
2018 EC1 a,e,i = 1.14, 0.23, 11 q = 0.8770
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 02 07 12 13 06.0 +30 53 19 0.2262 1.1641 137.9 34.6 24.8
...
2018 02 22 12 06 36.4 +29 45 29 0.1370 1.1083 148.5 27.8 23.4
...
2018 03 02 11 47 28.7 +26 52 32 0.09418 1.0778 156.3 21.7 22.4
...
2018 03 08 11 16 25.5 +21 10 10 0.06488 1.0550 163.9 15.1 21.3
2018 03 09 11 08 44.5 +19 35 04 0.06037 1.0512 165.0 14.1 21.1
2018 03 10 11 00 01.6 +17 42 41 0.05601 1.0474 165.7 13.5 20.9
...
2018 03 16 09 34 46.3 -03 27 16 0.03552 1.0249 147.8 31.2 20.4
...
2018 03 24 05 51 38.1 -42 14 49 0.04101 0.9957 87.2 90.4 22.6
...
2018 04 08 02 34 42.0 -44 40 19 0.1042 0.9459 55.4 119.4 26.1
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-E42
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