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The Minor Planet Observer
and
Palmer Divide Observatory

971 Alsatia (2011)

MPC Designation: 1921 LF
Lightcurves Period (h): 9.614 0.003
Amplitude (mag): 0.29 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
2011-12-09 07:00  13.84   20.2   33.8  -11.1
2011-12-10 07:00  13.86   20.4   33.9  -11.0
2011-12-11 07:00  13.88   20.7   34.1  -10.9
2011-12-12 07:00  13.90   20.9   34.3  -10.8

Data Points: 228
Discovered: 1921-11-23  Nice  A. Schaumasse
Family/Group: Eunomia
Taxonomic Class: C
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)

Solution supports one found by Behrend (2005). Stephens (2000) reported 6.81 h.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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