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The Minor Planet Observer
and
Palmer Divide Observatory

2261 Keeler (2010)

MPC Designation: 1977 HC
Lightcurves Period (h): 23.10 ± 0.05
Amplitude (mag): 0.09 ± 0.01
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 300

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2010-04-03 07:00  15.14   23.4  195.0   34.4
2010-04-05 07:00  15.13   23.4  195.3   34.4
2010-04-09 07:00  15.13   23.5  196.0   34.4
2010-04-10 07:00  15.13   23.6  196.2   34.4
2010-04-11 07:00  15.14   23.6  196.3   34.3
2010-04-25 07:00  15.20   24.8  198.9   33.4

Data Points: 1009
Discovered: 1977-04-20  Mount Hamilton  A. R. Klemola
Family/Group: Phocaea
Taxonomic Class: S (Assumed)
Published: MPB 38, 3
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 P. Pravec, P. Kusnirak, D.P. Pray, R. Durkee, A. Galad.

 

Contents © 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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