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The Minor Planet Observer
and
Palmer Divide Observatory

11304 1993 DJ (2012)

MPC Designation: 1993 DJ
Lightcurves Period (h): 94.5 ± 0.2
Amplitude (mag): 1.0 ± 0.1
Equipment:

 

Filter: C
MagBand: V
Telescope: 0.35m f/9.1 SCT
Camera: SBIG STL-1001E
Exposure: 300

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2012-03-23 07:00  16.21   21.0  197.1   27.9
2012-03-24 07:00  16.20   20.9  197.2   28.1
2012-03-24 09:00  16.20   20.9  197.2   28.1
2012-03-25 07:00  16.19   20.8  197.3   28.3
2012-03-28 07:00  16.18   20.6  197.5   28.8
2012-03-29 07:00  16.17   20.6  197.6   29.0
2012-03-30 07:00  16.17   20.6  197.7   29.2
2012-03-31 07:00  16.17   20.6  197.8   29.3
2012-04-01 07:00  16.16   20.6  197.8   29.5
2012-04-09 07:00  16.18   21.0  198.4   30.6

Data Points: 443
Discovered: 1993-02-19  Geisei  T. Seki
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)

Follow-up to 2009 observations (Minor Planet Bul. 36, 109-116). There is a possibility that this is "tumbling" - in non-principal axis rotation.

 

Contents © 2012 Brian D. Warner / Palmer Divide Observatory

 

 

 

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