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The Minor Planet Observer
and
Palmer Divide Observatory

5477 Holmes (2012)

MPC Designation: 1989 UH2
Lightcurves Period (h): 2.9932 0.0002
Amplitude (mag): 0.10 0.01
Equipment:

 

Filter: C
MagBand: V
Telescope: 0.5m f/8.1 R/C
Camera: FLI 1001E IMG
Exposure: 300

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2012-03-06 07:00  16.64   17.2  179.3   26.3
2012-03-09 07:00  16.59   16.6  179.4   26.1
2012-03-10 07:00  16.58   16.4  179.4   26.0
2012-03-12 07:00  16.56   16.0  179.4   25.9
2012-03-13 07:00  16.55   15.9  179.4   25.8
2012-03-14 07:00  16.54   15.8  179.4   25.7
2012-03-15 07:00  16.53   15.6  179.4   25.6
2012-03-16 07:00  16.52   15.5  179.4   25.5
2012-03-17 07:00  16.51   15.4  179.5   25.4
2012-04-09 07:00  16.71   17.7  179.8   22.4
2012-04-10 07:00  16.73   17.9  179.9   22.2
2012-04-17 07:00  16.84   19.9  180.3   20.9
2012-04-18 07:00  16.86   20.2  180.4   20.8

Data Points: 434
Discovered: 1989-10-27  Palomar  E. F. Helin
Family/Group: Hungaria
Taxonomic Class: ES (Assumed)
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)

Collaboration with Robert D. Stephens and Daniel Coley, Center for Solar System Studies. Follow-up to 2005 observations (Minor Planet Bul. 38, 107-109). This is a known binary. The top plot shows the rotation of the primary while the bottom one shows the "mutual events" associated with the satellite. The data table includes only PDO data but the plot and data points total includes the data from Stephens and Coley.

 

Contents 2012 Brian D. Warner / Palmer Divide Observatory

 

 

 

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