M.P.E.C. 2013-D23 Issued 2013 Feb. 18, 
00:23 UT

The Minor Planet Electronic Circulars contain information on 
unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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 http://www.minorplanetcenter.net/ ISSN 1523-6714

COMET P/2013 CE31 (MOSS)

Observations:
PK13C31E C2013 01 19.45987 10 32 33.03 +14 40 25.2 20.2 ToED023691
PK13C31E C2013 01 19.47753 10 32 32.72 +14 40 28.3 20.5 ToED023691
PK13C31E C2013 01 19.49521 10 32 32.35 +14 40 31.6 20.5 ToED023691
PK13C31E C2013 02 05.11210 10 25 19.50 +15 40 21.8 20.3 TuED023J43
PK13C31E C2013 02 05.12268 10 25 19.10 +15 40 23.7 20.2 TuED023J43
PK13C31E C2013 02 05.13316 10 25 18.81 +15 40 26.4 20.1 TuED023J43
PK13C31E C2013 02 05.14390 10 25 18.40 +15 40 29.0 19.5 TuED023J43
PK13C31E C2013 02 06.15171 10 24 46.84 +15 44 21.1 20.1 TuED023J43
PK13C31E C2013 02 06.16249 10 24 46.37 +15 44 23.2 20.4 TuED023J43
PK13C31E C2013 02 06.17299 10 24 46.05 +15 44 26.0 20.5 TuED023J43
PK13C31E C2013 02 06.18348 10 24 45.69 +15 44 28.3 20.0 TuED023J43
PK13C31E C2013 02 06.19400 10 24 45.34 +15 44 30.7 20.5 TuED023J43
PK13C31E C2013 02 09.38615 10 23 02.070+15 56 47.99 20.8 TLED023F51
PK13C31E C2013 02 09.40108 10 23 01.581+15 56 51.53 20.8 TLED023F51
PK13C31E C2013 02 09.43135 10 23 00.553+15 56 58.51 20.8 TLED023F51
PK13C31E C2013 02 09.67139 10 22 52.47 +15 57 53.0 20.5 TrED023D29
PK13C31E C2013 02 09.68828 10 22 51.88 +15 57 57.4 19.9 TrED023D29
PK13C31E C2013 02 09.70516 10 22 51.26 +15 58 01.1 20.1 TrED023D29
PK13C31E _C2013 02 10.35106810 22 30.056+16 00 30.30 19.5 TtED023568
PK13C31E _C2013 02 10.35301310 22 29.986+16 00 30.73 19.5 TtED023568
PK13C31E _C2013 02 10.35496110 22 29.918+16 00 31.18 19.5 TtED023568
PK13C31E _C2013 02 12.35671510 21 22.425+16 08 10.87 19.4 TtED023568
PK13C31E _C2013 02 12.35796710 21 22.389+16 08 11.17 19.3 TtED023568
PK13C31E _C2013 02 12.35922010 21 22.349+16 08 11.50 19.2 TtED023568
PK13C31E _C2013 02 14.30933810 20 15.625+16 15 35.66 19.7 TtED023568
PK13C31E _C2013 02 14.31058810 20 15.585+16 15 35.93 19.4 TtED023568
PK13C31E _C2013 02 14.31183810 20 15.537+16 15 36.23 19.5 TtED023568
PK13C31E C2013 02 17.21013 10 18 34.83 +16 26 26.3 20.1 ToED023691
PK13C31E C2013 02 17.22784 10 18 34.23 +16 26 30.5 20.0 ToED023691
PK13C31E C2013 02 17.24556 10 18 33.53 +16 26 34.3 19.9 ToED023691

Observer details:
568 Mauna Kea. Observers R. J. Wainscoat, M. Micheli, A. Draginda. 
Measurers
M. Micheli, R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope 
+ CCD.
691 Steward Observatory, Kitt Peak. Observers T. H. Bressi, J. V. 
Scotti.
0.9-m f/3 reflector + CCD.
D29 Purple Mountain Observatory, XuYi Station. Observers H. B. Zhao, 
B. Li,
H. Lu, Y. Xia, R. Q. Hong, L. F. Hu. Measurers H. B. Zhao, H. Lu,
G. Zhaori. 1.04-m f/1.8 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, S. 
Watters,
T. Goggia. Measurer PS1 Science Consortium. 1.8-m 
Ritchey-Chretien
+ CCD.
J43 Oukaimeden Observatory, Marrakech. Observer C. Rinner. 0.5-m f/3
reflector + CCD.

Orbital elements:
P/2013 CE31 (MOSS)
T 2012 May 21.68047 TT MPC
q 4.0228047 (2000.0) P Q
n 0.09239154 Peri. 27.76370 -0.41968870 -0.90393472
a 4.8459758 Node 87.15101 +0.81676778 -0.41562637
e 0.1698669 Incl. 4.72318 +0.39591891 -0.10078064
P 10.7
From 30 observations 2013 Jan. 19-Feb. 17.