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Comet P/2015 CD60 (LINEAR)

Af(rho) data acoording the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

Discovery: CBET 5489:  COMET P/2015 CD_60

An apparently asteroidal object with a comet-like orbit was discovered in 2015  with the 3.5-m f/1 Mercenne- Schmidt "Space Surveillance Telescope" (SST), which was then located at the White Sands Missile Range in New Mexico.  The 2015 Feb. 13-14 SST observations were not officially entered into the MPC archive until 2015 Mar. 28, and the object was designated 2015 CD_60 when it was announced on MPS 595423 (dated 2015 Apr. 4).  Earlier SST observations from 2015 Jan. 24 and 25 (which were linked together apparently already on 2022 Feb. 22) were later identified with 2015 CD_60 on MPS 612673 (dated 2015 June 28).  On 2015 Jan. 24.1 UT, the r-band magnitude was given as 19.5-20.5, and on 2015 Jan. 25.1, the SST images yielded r = 19.9-20.9.  The SST was a continuation to the LINEAR survey, which lends its name to this comet.

This object was apparently accidentally re-discovered in images obtained with the Mt. Lemmon Survey's 1.5-m reflector on 2024 Oct. 27 (discovery observations tabulated below) and reported then as an apparently asteroidal near-earth candidate.  At some point after Oct. 27, this object was linked with 2015 CD_60.

     There were 14 reports of cometary activity. The first report was by R. Haver. There were 13 reports of a coma and there were 12 reports of a tail. Details are provided in the table below.  MPEC 2025-A142 : COMET P/2015 CD60 (LINEAR)