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The Minor Planet Observer
and
Palmer Divide Observatory

22357 1992 YJ (2004)

MPC Designation: 1992 YJ
Lightcurves Period (h): 103. ± 5.
Amplitude (mag): 0.54 ± 0.03
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/10 SCT
Camera: FLI KAF-1001E
Exposure: 60

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2004-08-21 06:00  15.42   22.7  331.7   30.7
2004-08-22 06:00  15.42   22.8  331.9   30.9
2004-08-23 06:00  15.41   22.9  332.1   31.0
2004-08-24 06:00  15.41   23.0  332.3   31.1
2004-08-25 06:00  15.41   23.1  332.4   31.3
2004-08-26 06:00  15.41   23.2  332.6   31.4
2004-08-28 07:00  15.41   23.5  333.0   31.7

Data Points: 685
Discovered: 1992-12-22  Yakiimo  A. Natori, T. Urata
Family/Group: MB-Inner
Taxonomic Class: S (Assumed)
Published: MPB 38, 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)

Tumbling guidelines indicate this could be a tumbler but there were no signs of such in the limited data set.

 

Contents © 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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