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The Minor Planet Observer
and
Palmer Divide Observatory

68950 2002 QF15 (2006)

MPC Designation: 2002 QF15
Lightcurves Period (h): 47.0 0.5
Amplitude (mag): >0.35 0.02
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 180

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2006-05-29 08:00  14.70   46.5  261.6   27.6
2006-06-02 06:00  14.96   44.7  259.6   29.5
2006-06-02 09:00  14.97   44.6  259.5   29.5
2006-06-03 06:00  15.03   44.4  259.2   29.9
2006-06-03 07:30  15.04   44.3  259.1   29.9
2006-06-03 09:00  15.04   44.3  259.1   29.9
2006-06-04 06:00  15.11   44.1  258.8   30.2
2006-06-04 07:30  15.11   44.1  258.8   30.2
2006-06-06 06:00  15.25   43.7  258.2   30.8
2006-06-06 07:30  15.25   43.7  258.2   30.8
2006-06-14 06:00  15.80   43.3  257.0   32.5

Data Points: 271
Discovered: 2002-08-27  Socorro  LINEAR
Family/Group: NEA
Taxonomic Class: S (Assumed)
Published: MPB 33, 85-88
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Radar observations indicate a much longer period, ~120 h. However, the PDO data just don't fit this. Originally, the period was reported as being ambiguous with a half-period of 23.5 h being possible (monomodal curve). Given the phase angle and estimated amplitude of 0.35 mag, that shorter period seems unlikely.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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