MPEC 2011-U41 : COMET P/2010 TO20 (LINEAR-GRAUER)
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M.P.E.C. 2011-U41 Issued 2011 Oct. 21, 13:46 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2010 TO20 (LINEAR-GRAUER)
Observations:
PK10T20O C2010 10 01.30866 23 59 35.07 -02 29 22.4 19.4 TcEU041704
PK10T20O C2010 10 01.32185 23 59 34.71 -02 29 25.6 19.1 TcEU041704
PK10T20O C2010 10 01.33500 23 59 34.39 -02 29 28.7 20.0 TcEU041704
PK10T20O C2010 10 01.34812 23 59 34.05 -02 29 29.5 19.6 TcEU041704
PK10T20O C2010 10 07.21946 23 56 55.61 -02 44 39.6 18.8 TcEU041704
PK10T20O C2010 10 07.23318 23 56 55.24 -02 44 41.2 19.3 TcEU041704
PK10T20O C2010 10 07.24647 23 56 54.81 -02 44 43.1 19.9 TcEU041704
PK10T20O C2010 10 07.25979 23 56 54.49 -02 44 45.6 19.1 TcEU041704
PK10T20O C2010 10 07.27323 23 56 54.12 -02 44 47.1 19.5 TcEU041704
PK10T20O KC2010 10 09.93349 23 55 45.21 -02 51 14.8 uEU041595
PK10T20O KC2010 10 09.94886 23 55 44.83 -02 51 16.7 19.5 TuEU041595
PK10T20O KC2010 10 10.87262 23 55 21.50 -02 53 26.3 19.3 TuEU041595
PK10T20O KC2010 10 10.88878 23 55 21.10 -02 53 28.8 uEU041595
PK10T20O C2010 10 11.22952 23 55 12.55 -02 54 15.4 19.0 TcEU041704
PK10T20O C2010 10 11.24342 23 55 12.13 -02 54 18.6 19.6 TcEU041704
PK10T20O C2010 10 11.25718 23 55 11.84 -02 54 19.1 19.7 TcEU041704
PK10T20O C2010 10 11.28464 23 55 10.99 -02 54 24.2 19.6 TcEU041704
PK10T20O C2011 10 19.33795 01 58 19.45 +11 16 39.2 19.1 TrEU041G96
PK10T20O C2011 10 19.34406 01 58 19.30 +11 16 38.4 19.0 TrEU041G96
PK10T20O C2011 10 19.35030 01 58 19.16 +11 16 38.2 20.0 TrEU041G96
PK10T20O C2011 10 19.35649 01 58 18.94 +11 16 37.3 19.2 TrEU041G96
PK10T20O C2011 10 19.39053 01 58 17.94 +11 16 32.1 19.2 TrEU041G96
PK10T20O C2011 10 19.39830 01 58 17.63 +11 16 30.9 19.1 TrEU041G96
PK10T20O C2011 10 19.40612 01 58 17.51 +11 16 30.4 19.6 TrEU041G96
PK10T20O C2011 10 19.41404 01 58 17.18 +11 16 28.8 19.2 TrEU041G96
PK10T20O C2011 10 19.42711 01 58 16.73 +11 16 27.0 19.0 TrEU041G96
PK10T20O C2011 10 19.43450 01 58 16.59 +11 16 25.8 19.6 TrEU041G96
PK10T20O C2011 10 19.44198 01 58 16.46 +11 16 25.1 19.9 TrEU041G96
PK10T20O C2011 10 19.44946 01 58 16.20 +11 16 24.3 19.2 TrEU041G96
PK10T20O KC2011 10 19.57954 01 58 12.61 +11 16 07.4 20.2 TrEU041E10
PK10T20O KC2011 10 19.59046 01 58 12.31 +11 16 05.6 20.1 TrEU041E10
PK10T20O KC2011 10 19.60138 01 58 11.99 +11 16 04.2 20.1 TrEU041E10
PK10T20O C2011 10 20.30750 01 57 51.48 +11 14 21.8 19.4 TrEU041G96
PK10T20O C2011 10 20.31207 01 57 51.37 +11 14 21.5 18.8 TrEU041G96
PK10T20O C2011 10 20.31667 01 57 51.22 +11 14 21.1 19.0 TrEU041G96
PK10T20O C2011 10 20.32132 01 57 51.12 +11 14 20.3 19.7 TrEU041G96
PK10T20O $C2011 10 20.39796 01 57 49.03 +11 14 10.1 20.2 ToEU041F65
PK10T20O $C2011 10 20.39995 01 57 48.94 +11 14 09.8 20.1 ToEU041F65
PK10T20O $C2011 10 20.40192 01 57 48.90 +11 14 10.1 20.0 ToEU041F65
Observer details:
595 Farra d'Isonzo. Observers F. Piani, M. Ceschia, E. Pettarin. 0.40-m f/4.5
reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Bezpalko, D. Torres, R.
Kracke, G. Spitz, J. Kistler. Measurers J. Stuart, S. Scruggs. 1.0-m
f/2.15 reflector + CCD.
E10 Siding Spring-Faulkes Telescope South. Observers G. Sostero, I. Melville,
A. Kasprzyk, N. Howes, E. Guido. 2.0-m f/10.0 Ritchey-Chretien + CCD.
F65 Haleakala-Faulkes Telescope North. Observers G. Sostero, N. Howes,
E. Guido. 2.0-m f/10.0 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer A. D. Grauer. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer,
R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector
+ CCD.
Orbital elements:
P/2010 TO20 (LINEAR-Grauer)
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5
T 2008 Aug. 27.90514 TT MPC
q 5.0655649 (2000.0) P Q
n 0.07450287 Peri. 250.17537 +0.40720181 +0.91277530
a 5.5935482 Node 43.89758 -0.81971740 +0.38071821
e 0.0943915 Incl. 2.65029 -0.40280277 +0.14796923
P 13.23
From 39 observations 2010 Oct. 1-2011 Oct. 20, mean residual 0".63.
Residuals in seconds of arc
101001 704 0.7- 0.6+ 101011 704 0.3+ 0.3+ 111019 G96 0.8- 0.2-
101001 704 0.6- 0.4- 101011 704 0.6- 0.9- 111019 G96 0.5+ 0.2+
101001 704 0.2+ 1.4- 101011 704 0.4+ 0.5+ 111019 G96 0.1- 0.4+
101001 704 0.7+ 0.1- 101011 704 1.8- 0.9- 111019 E10 0.9+ 0.1-
101007 704 0.8+ 0.2+ 111019 G96 0.5- 0.6- 111019 E10 1.2+ 0.4-
101007 704 0.8+ 0.6+ 111019 G96 0.0 0.5- 111019 E10 1.3+ 0.2-
101007 704 0.2- 0.7+ 111019 G96 0.6+ 0.2+ 111020 G96 0.9- 0.4-
101007 704 0.4+ 0.2+ 111019 G96 0.1+ 0.2+ 111020 G96 0.5- 0.1-
101007 704 0.2+ 0.7+ 111019 G96 0.1+ 0.2- 111020 G96 0.7- 0.2+
101009 595 0.3- 0.2- 111019 G96 1.1- 0.3- 111020 G96 0.2- 0.0
101009 595 0.0 0.0 111019 G96 0.5+ 0.3+ 111020 F65 1.1+ 0.3+
101010 595 0.1+ 0.2+ 111019 G96 0.9- 0.1- 111020 F65 0.6+ 0.3+
101010 595 0.3+ 0.0 111019 G96 1.9- 0.1- 111020 F65 0.9+ 0.9+
Ephemeris:
P/2010 TO20 (LINEAR-Grauer)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2011 09 21 02 10 07.0 +12 13 57 4.7474 5.5821 143.0 6.2 19.9
...
2011 10 06 02 04 27.3 +11 46 40 4.6463 5.5922 159.2 3.6 19.8
...
2011 10 14 02 00 51.3 +11 29 06 4.6178 5.5975 168.0 2.1 19.8
...
2011 10 20 01 58 00.4 +11 15 07 4.6091 5.6014 174.6 1.0 19.8
2011 10 21 01 57 31.5 +11 12 45 4.6087 5.6021 175.8 0.8 19.8
2011 10 22 01 57 02.6 +11 10 22 4.6086 5.6027 176.8 0.6 19.8
...
2011 10 28 01 54 08.6 +10 56 05 4.6146 5.6067 176.3 0.7 19.8
...
2011 11 05 01 50 22.2 +10 37 30 4.6401 5.6119 167.3 2.2 19.8
...
2011 11 20 01 44 06.3 +10 07 01 4.7393 5.6216 150.6 4.9 19.9
The osculation epoch for the orbit is the current standard epoch, rather
than the 40-day epoch closest to perihelion, which is normal for comets.
Like the recent case of P/2011 P1 (McNaught), P/2010 TO20 (LINEAR-Grauer)
has made a recent close approach to Jupiter (0.077 AU on 2009 Nov. 2). For
current epochs, the perihelion date lies in 2008. For epochs in 2008, the
perihelion date lies in 2012-2013.
Gareth V. Williams (C) Copyright 2011 MPC M.P.E.C. 2011-U41
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