Asteroid 52722 1998 GK


52722 1998 GK is a Mars-crossing asteroid with an estimated diameter of 5 km. It was discovered on April 2, 1998, by LINEAR at Socorro. The semi-major axis is 1.78 AU, the eccentricity is 0.159 and the inclination is 11.79 degrees.

This asteroid was observed on 4 nights during June 2009 when it was in the field of another asteroid that I was studying. Only a portion of the lightcurve was observed, and this indicated a rotation period of 11.587 hours. This conclusion was supported by a single-peak lightcurve of 5.789 hours whcih was derived and is shown below. With a period close to half a day, international colaboration is likely to be needed to get the full lightcurve.



Lightcurve results for 52722 1998 GK.
Period 11.587 +/- 0.011 hours. Amplitude 0.40 +/- 0.1 magnitude.

This asteroid was observed on 4 nights during June 2009 when it was in the field of another asteroid that I was studying. Only a portion of the lightcurve was observed, and this indicated a rotation period of 11.587 hours. With a period close to half a day, international colaboration is likely to be needed to get the full lightcurve.



Lightcurve results for 52722 1998 GK.
Period 5.789 +/- 0.006 hours. Amplitude 0.40 +/- 0.1 magnitude.