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The Minor Planet Observer
and
Palmer Divide Observatory

4713 Steel (2011)

MPC Designation: 1989 QL
Lightcurves Period (h): 5.193 0.002
Amplitude (mag): 0.28 0.02
Equipment:

 

Filter: R
MagBand: R
Telescope: 0.30m f/6.25 SC
Camera: ST-9XE
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2011-12-12 07:00  15.15    7.8   80.0  -12.6
2011-12-14 07:00  15.14    7.7   79.9  -12.3
2011-12-15 07:00  15.14    7.7   79.9  -12.1
2011-12-16 07:00  15.15    7.7   79.9  -11.9
2011-12-17 07:00  15.15    7.9   79.8  -11.8

Data Points: 135
Discovered: 1989-08-26  Siding Spring  R. H. McNaught
Family/Group: Hungaria
Taxonomic Class: A
Published: MPB pending
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Behrend (2002) and Warner (MPB 37, 161-165) reported similar periods.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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