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The Minor Planet Observer
and
Palmer Divide Observatory

162900 2001 HG31 (2008)

MPC Designation: 2001 HG31
Lightcurves Period (h): 59.58 ± 0.03
Amplitude (mag): 0.56 ± 0.02
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: SBIG STL-1001E
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2008-10-27 07:00  16.05   13.6   48.0    0.9
2008-10-28 07:00  15.99   13.0   48.3    1.0
2008-10-29 07:00  15.93   12.4   48.6    1.2
2008-10-30 07:00  15.86   11.8   48.9    1.3
2008-10-31 07:00  15.80   11.3   49.2    1.4
2008-11-02 07:00  15.67   10.1   49.8    1.7
2008-11-07 07:00  15.35    7.1   51.4    2.5
2008-11-08 07:00  15.28    6.5   51.7    2.7
2008-11-15 06:00  14.92    4.4   53.8    3.9

Data Points: 664
Discovered: 2001-04-24  Haleakala  NEAT
Family/Group: NEA
Taxonomic Class: S (Assumed)
Published: MPB 36, 56-57
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Collaboration with Q. Ye, L. Hung-Chin, R.D. Stephens. Another solution at 60.57 h also gives a fit to the data. It's very likely this is a tumbler.

 

Contents © 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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