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Post Info TOPIC: Asteroid 2009 UG89


L

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RE: Asteroid 2009 UG89
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Comet C/2009 UG89 (Lemmon) is at Perihelion (3.931 AU) on the 16th December, 2010.


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Comet C/2009 UG89 (Lemmon) makes its closest approach to the Earth (3.253 AU) on the 23rd July, 2010.

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2010 07 23 19 24 38.5 +12 32 25 3.2529 4.1310 145.6 8.0 17.7
2010 07 24 19 22 44.6 +12 35 28 3.2530 4.1283 145.2 8.1 17.7
2010 07 25 19 20 51.0 +12 38 17 3.2535 4.1257 144.9 8.1 17.7
2010 07 26 19 18 57.7 +12 40 55 3.2545 4.1231 144.4 8.2 17.7
2010 07 27 19 17 04.7 +12 43 19 3.2559 4.1205 143.9 8.3 17.7
2010 07 28 19 15 12.2 +12 45 31 3.2577 4.1180 143.4 8.4 17.7
2010 07 29 19 13 20.1 +12 47 31 3.2600 4.1154 142.9 8.6 17.7
2010 07 30 19 11 28.5 +12 49 19 3.2626 4.1129 142.3 8.7 17.7
2010 07 31 19 09 37.5 +12 50 55 3.2657 4.1104 141.7 8.8 17.7


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L

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Comet C/2009 UG89 (LEMMON)
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Asteroid UG89 2009 was discovered by the Mt. Lemmon Survey on the 22ud October 2009. Later Observations by H. Sato (RAS Observatory) and other observers revealed the that the object had a cometary appearance.
The orbital elements of the comet indicate a perihelion passage on the 16th December, 2010, at a distance of approximately 3.9 AU from the Sun.

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Orbital elements:
C/2009 UG89 (Lemmon)
Epoch 2010 Dec. 30.0 TT = JDT 2455560.5
T 2010 Dec. 16.26592 TT MPC
q 3.9313590 (2000.0) P Q
z -0.0020510 Peri. 60.65043 +0.02768606 -0.87612283
+/-0.0000137 Node 321.00843 -0.94853295 +0.12892214
e 1.0080631 Incl. 130.10013 +0.31546590 +0.46452972
From 64 observations 2009 Oct. 22-2010 Apr. 27

MPEC 2010 - H68


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RE: Asteroid 2009 UG89
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Asteroid 2009 UG89 has a retrograde orbit.

IAUC 9091 (Subscription)

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Orbital elements:
2009 UG89
Epoch 2009 Oct. 16.0 TT = JDT 2455120.5 MPC
M 359.38157 (2000.0) P Q
n 0.00154198 Peri. 51.58611 +0.15697828 -0.86637829
a 74.2022020 Node 320.93041 -0.96151084 -0.02446229
e 0.9414279 Incl. 131.22009 +0.22550992 +0.49878878
P 639 H 12.6 G 0.15
From 37 observations 2009 Oct. 22-25.

MPEC 2009 - U123


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