MPEC 2009-M05 : COMET P/2009 L2 (YANG-GAO)
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M.P.E.C. 2009-M05 Issued 2009 June 16, 19:16 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.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2009 L2 (YANG-GAO)
Observations:
PK09L020 C2009 06 15.80840 18 16 19.40 -14 15 30.7 14.2 T EM005C42
PK09L020 C2009 06 15.82775 18 16 19.67 -14 14 25.1 14.1 T EM005C42
PK09L020 C2009 06 15.84707 18 16 20.19 -14 13 25.8 14.0 T EM005C42
PK09L020 C2009 06 16.45432 18 16 39.24 -13 41 23.1 15.0 T EM005H06
PK09L020 C2009 06 16.45451 18 16 39.24 -13 41 22.8 14.7 T EM005H10
PK09L020 C2009 06 16.45536 18 16 39.26 -13 41 20.2 14.5 T EM005H10
PK09L020 C2009 06 16.45620 18 16 39.30 -13 41 17.2 14.8 T EM005H10
PK09L020 C2009 06 16.45705 18 16 39.30 -13 41 14.7 14.4 T EM005H10
PK09L020 C2009 06 16.45716 18 16 39.31 -13 41 14.3 15.0 T EM005H06
PK09L020 C2009 06 16.45999 18 16 39.37 -13 41 05.6 14.8 T EM005H06
PK09L020 C2009 06 16.46469 18 16 41.99 -13 40 21.8 15.8 T EM005E16
PK09L020 C2009 06 16.47769 18 16 42.33 -13 39 41.6 15.7 T EM005E16
PK09L020 C2009 06 16.48650 18 16 42.55 -13 39 13.8 14.5 T EM005E16
PK09L020 C2009 06 16.49035 18 16 42.65 -13 39 01.8 EM005E16
PK09L020 C2009 06 16.49429 18 16 42.76 -13 38 49.5 EM005E16
PK09L020 C2009 06 16.51701 18 16 43.48 -13 37 38.0 14.2 T EM005D90
PK09L020 C2009 06 16.52541 18 16 43.68 -13 37 11.9 14.2 T EM005D90
PK09L020 C2009 06 16.55691 18 16 44.84 -13 36 02.2 16.0 T EM005D32
PK09L020 C2009 06 16.56656 18 16 45.12 -13 35 31.0 15.8 T EM005D32
PK09L020 C2009 06 16.57484 18 16 45.36 -13 35 05.1 16.0 T EM005D32
PK09L020 C2009 06 16.57753 18 16 44.96 -13 34 59.5 15.3 T EM005300
PK09L020 C2009 06 16.57833 18 16 44.98 -13 34 58.1 15.9 T EM005300
PK09L020 C2009 06 16.57913 18 16 45.06 -13 34 54.8 16.1 T EM005300
PK09L020 C2009 06 16.57994 18 16 45.13 -13 34 52.9 16.6 T EM005300
PK09L020 C2009 06 16.58075 18 16 45.16 -13 34 48.2 15.9 T EM005300
PK09L020 C2009 06 16.58948 18 16 45.36 -13 34 20.6 15.9 T EM005300
PK09L020 C2009 06 16.59190 18 16 45.42 -13 34 14.2 15.5 T EM005300
PK09L020 C2009 06 16.61073 18 16 45.75 -13 33 15.9 EM005900
PK09L020 C2009 06 16.61424 18 16 45.83 -13 33 05.2 EM005900
PK09L020 C2009 06 16.61960 18 16 45.93 -13 32 48.4 13.9 T EM005900
PK09L020 C2009 06 16.62532 18 16 46.06 -13 32 30.5 EM005900
PK09L020 C2009 06 16.64019 18 16 46.29 -13 31 14.2 14.8 T EM005D90
PK09L020 C2009 06 16.64601 18 16 46.41 -13 30 55.9 14.8 T EM005D90
PK09L020 C2009 06 16.64727 18 16 46.45 -13 30 51.7 14.0 T EM005D90
PK09L020 C2009 06 16.65164 18 16 46.53 -13 30 38.2 14.0 T EM005D90
PK09L020 C2009 06 16.65709 18 16 46.66 -13 30 21.0 14.0 T EM005D90
PK09L020 C2009 06 16.67142 18 16 46.97 -13 29 36.5 14.7 T EM005D90
PK09L020 C2009 06 16.67251 18 16 46.99 -13 29 33.1 14.7 T EM005D90
PK09L020 C2009 06 16.67360 18 16 47.02 -13 29 29.7 14.7 T EM005D90
PK09L020 C2009 06 16.67470 18 16 47.04 -13 29 26.2 14.6 T EM005D90
PK09L020 C2009 06 16.67580 18 16 47.07 -13 29 22.6 14.6 T EM005D90
PK09L020 C2009 06 16.67690 18 16 47.10 -13 29 19.3 14.8 T EM005D90
PK09L020 C2009 06 16.67919 18 16 48.24 -13 29 42.3 14.4 T EM005C42
PK09L020 C2009 06 16.68456 18 16 48.45 -13 29 28.6 14.1 T EM005C42
PK09L020 C2009 06 16.69331 18 16 47.56 -13 28 58.0 EM005900
PK09L020 C2009 06 16.69699 18 16 47.38 -13 28 48.2 14.5 N EM005900
PK09L020 C2009 06 16.70968 18 16 49.04 -13 28 08.9 14.1 T EM005C42
PK09L020 C2009 06 16.71473 18 16 49.25 -13 27 55.5 14.1 T EM005C42
PK09L020 C2009 06 16.71979 18 16 49.20 -13 27 39.4 14.2 T EM005C42
PK09L020 C2009 06 16.72161 18 16 49.50 -13 27 32.7 14.3 T EM005C42
Observer details:
300 Bisei Spaceguard Center--BATTeRS. Observers T. Sakamoto, S. Urakawa.
0.50-m f/2.0 reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
C42 Xingming Observatory, Mt. Nanshan. Observers R. Yang, X. Gao.
0.107-m f/2.8 camera lens + CCD.
D32 JiangNanTianChi Observatory, Mt. Getianling. Observers T. Chen, G.-T. Gao.
Measurer T. Chen. 0.25-m f/7.6 Ritchey-Chretien + CCD.
D90 RAS Observatory, Moorook. Observers M. Suzuki, R. Ligustri, E. Bryssinck,
C. Jacques, E. Pimentel. 0.25-m f/6 Ritchey-Chretien + CCD,
0.35-m f/8 reflector + CCD.
E16 Grove Creek Observatory, Trunkey. Observers P. Camilleri, E. Prosperi.
0.35-m f/6 reflector + CCD, 0.36-m f/7 Schmidt-Cassegrain + CCD.
H06 RAS Observatory, Mayhill. Observers E. Guido, G. Sostero. 0.25-m f/3.4
reflector + CCD.
H10 Tzec Maun Observatory, Mayhill. Observer L. Elenin. 0.2-m f/7.7
refractor + CCD.
Orbital elements:
P/2009 L2 (Yang-Gao)
T 2009 May 19.898 TT MPC
q 1.28936 (2000.0) P Q
n 0.148535 Peri. 345.164 -0.420388 +0.864808
a 3.53115 Node 259.343 -0.801425 -0.495784
e 0.63486 Incl. 16.223 -0.425431 +0.079400
P 6.64
From 48 observations 2009 June 15-16.
Ephemeris:
P/2009 L2 (Yang-Gao)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 06 08 18 10.79 -21 41.5 0.303 1.310 164.6 11.9 13.6
2009 06 13 18 14.63 -16 48.8 0.312 1.322 166.8 10.1 13.7
2009 06 18 18 17.45 -12 21.9 0.327 1.336 166.7 10.1 13.8
2009 06 23 18 19.56 -08 28.2 0.345 1.353 164.7 11.4 14.0
2009 06 28 18 21.26 -05 11.3 0.369 1.372 161.8 13.4 14.2
2009 07 03 18 22.81 -02 30.8 0.396 1.393 158.6 15.4 14.4
2009 07 08 18 24.40 -00 24.5 0.427 1.416 155.4 17.4 14.7
2009 07 13 18 26.16 +01 11.4 0.461 1.441 152.3 19.2 14.9
2009 07 18 18 28.19 +02 21.0 0.499 1.467 149.3 20.7 15.2
2009 07 23 18 30.57 +03 08.3 0.539 1.495 146.4 22.1 15.4
2009 07 28 18 33.38 +03 37.4 0.583 1.525 143.6 23.3 15.7
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-M05
Read MPEC 2009-M04
Read MPEC 2009-M06
