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Comet P/2001 MD7 (LINEAR) | Comet 2001 TU80 (LINEAR-NEAT) | Comet 2002C1 (IKEYA-ZHANG) | Comet 2001 K5 (LINEAR) | Comet 2001 A2 (LINEAR) | Comet 2000WM1 (LINEAR) | Comet 19P Borrelly
Comets
Comet 2001 TU80 (LINEAR-NEAT)

Discovered October 13, 2001

2001tu80.jpg

Image of Comet 2001 TU80 (LINEAR-NEAT) taken on February 22, 2002 with 30cm F7 SCT + CCD (ST9E) 14x60sec stacked.

This comet was discovered by LINEAR on images obtained on 2001 October 13.44 and 17.41. It was then described as asteroidal in appearance with a magnitude ranging from 19.0 to 19.8. It was even given an asteroid designation of 2001 TU80. An independent discovery was made by NEAT at Haleakala on October 19.59. The object was still stellar in appearance and magnitude estimates three NEAT images revealed a range of 19.3 to 20.4. A routine minor planet orbit was calculated and no further observations were made.

The NEAT program based at Palomar Observatory discovered a comet with a coma 3 arcsec across on November 16.53. The comet was almost immediately identified to the asteroidal object found by LINEAR and NEAT during October. An observation by P. Kusnirak (Ondrejov Observatory) on November 17, using a 0.65-m reflector, revealed the comet was moderately condensed, with a coma 0.3 arcmin across.

The first announcement of this comet was made on International Astronomical Union Circular 7753 (2001 Nov. 17). It included details of the discovery observations, as well as the first orbit. The orbit was calculated by B. G. Marsden, using 27 positions reported during the period of October 13 to November 17. The resulting perihelion date was 2001 December 9.24, while the orbital period was 7.19 years.

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