MPEC 2019-H24 : 2018 CW1
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M.P.E.C. 2019-H24 Issued 2019 Apr. 19, 01:19 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
2018 CW1
Revision to MPEC 2018-C57
Additional Observations:
K18C01W C2014 10 02.40440102 13 55.388+14 35 54.88 22.7 GVEH024F51
K18C01W C2014 10 02.41661502 13 54.810+14 36 06.10 22.6 GVEH024F51
K18C01W C2014 10 02.42884802 13 54.253+14 36 17.75 22.6 GVEH024F51
K18C01W C2014 10 30.20585 01 36 13.67 +22 24 04.3 21.1 VqEH024G96
K18C01W C2014 10 30.21043 01 36 13.17 +22 24 09.1 20.3 VqEH024G96
K18C01W C2014 10 30.21501 01 36 12.65 +22 24 13.5 20.7 VqEH024G96
K18C01W C2014 10 30.21958 01 36 12.06 +22 24 19.1 21.3 VqEH024G96
K18C01W C2014 12 26.28367901 07 32.315+35 15 49.08 22.6 GVEH024F51
K18C01W C2014 12 26.29584801 07 33.335+35 15 58.03 22.7 GVEH024F51
K18C01W C2017 11 03.55083506 34 58.994+45 38 15.89 21.5 GVEH024F51
K18C01W C2017 11 10.58110806 58 02.674+48 52 12.80 21.7 GVEH024F51
K18C01W C2017 11 10.59467106 58 05.268+48 52 35.04 21.6 GVEH024F51
K18C01W C2017 11 10.62184906 58 10.411+48 53 19.02 22.5 GVEH024F51
K18C01W C2017 11 25.59061707 48 58.332+55 17 41.44 21.9 GVEH024F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. Measurers E. J. Christensen,
A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski,
S. M. Larson, F. C. Shelly. 1.5-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
141002 F51 0.34- 0.22- 171125 F51 6.1- 7.8- MPO435637 -0.010 day
Orbital elements:
2018 CW1 Earth MOID = 0.3928 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 167.41656 (2000.0) P Q
n 0.33859705 Peri. 76.07148 -0.05694941 -0.99601306
a 2.0386716 Node 17.63256 +0.80595714 -0.08645495
e 0.3653579 Incl. 13.10169 +0.58922819 +0.02198915
P 2.91 H 21.6 G 0.15 U 1
Residuals in seconds of arc
141002 F51 0.2+ 0.0 171231 F51 0.3+ 0.1- 180207 V06 0.7- 0.1+
141002 F51 0.1- 0.1- 171231 F51 0.2+ 0.0 180207 V06 0.2+ 1.1+
141002 F51 0.0 0.2+ 171231 F51 0.1- 0.0 180208 H01 0.1+ 0.0
141030 G96 0.2- 0.1- 180129 F51 0.2- 0.2- 180208 H01 0.1+ 0.1+
141030 G96 0.2+ 0.1- 180129 F51 0.4- 0.2- 180208 H01 0.2+ 0.0
141030 G96 0.3+ 0.4- 180129 F51 0.1- 0.1+ 180208 H01 0.1+ 0.1+
141030 G96 0.5- 0.5+ 180130 F51 0.3+ 0.1- 180208 V06 0.3+ 0.8-
141226 F51 0.3- 0.1+ 180130 F51 0.2+ 0.0 180208 711 0.6- 0.4+
141226 F51 0.2- 0.0 180130 F51 0.3+ 0.2- 180208 711 0.5- 0.2+
171103 F51 0.7- 0.3- 180130 F51 0.1+ 0.2+ 180208 V06 0.4- 0.2-
171110 F51 0.2+ 0.1+ 180206 G96 0.4+ 0.1- 180208 711 0.4- 0.8+
171110 F51 0.3+ 0.1+ 180206 G96 0.0 0.2- 180208 V06 0.4- 0.0
171110 F51 0.1+ 0.1- 180206 G96 0.4+ 0.2- 180209 711 0.2+ 0.1-
171125 F51 0.0 0.1- 180206 G96 0.0 0.3- 180209 711 0.1- 0.2-
171231 F51 0.0 0.0 180207 V06 1.2- 0.8+ 180209 711 0.1+ 0.0
Ephemeris:
2018 CW1 a,e,i = 2.04, 0.37, 13 q = 1.2938
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 03 20 18 54 34.5 -34 25 34 2.7791 2.7441 77.6 20.8 27.0
...
2019 04 04 19 10 20.0 -35 17 18 2.5871 2.7582 89.1 21.3 26.9
...
2019 04 12 19 16 58.8 -35 50 04 2.4831 2.7645 95.4 21.2 26.8
...
2019 04 18 19 21 01.8 -36 17 36 2.4056 2.7686 100.4 20.9 26.7
2019 04 19 19 21 37.2 -36 22 27 2.3928 2.7693 101.2 20.8 26.7
2019 04 20 19 22 11.2 -36 27 23 2.3800 2.7699 102.1 20.8 26.7
...
2019 04 26 19 25 02.5 -36 58 40 2.3043 2.7733 107.2 20.3 26.6
...
2019 05 04 19 27 16.2 -37 44 55 2.2068 2.7772 114.2 19.3 26.5
...
2019 05 19 19 25 56.2 -39 23 36 2.0413 2.7819 128.1 16.6 26.3
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-H24
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