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The Minor Planet Observer
and
Palmer Divide Observatory

1994 XD (2012)

MPC Designation: 1994 XD
Lightcurves Period (h): 2.7365 ± 0.0006
Amplitude (mag): 0.08 ± 0.01
Equipment:

 

Filter: C
MagBand: V
Telescope: 0.35m f/9.1 SCT
Camera: STL-1001E
Exposure: 90

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2012-12-04 07:30  15.34   27.2   84.9  -10.3
2012-12-04 09:20  15.35   26.9   84.8  -10.2
2012-12-04 11:00  15.35   26.6   84.7  -10.1
2012-12-07 07:00  15.69   16.5   82.9   -7.1
2012-12-10 06:00  16.01    9.7   82.1   -5.2
2012-12-10 09:30  16.03    9.4   82.1   -5.1
2012-12-12 05:30  16.22    6.6   81.9   -4.3
2012-12-12 09:00  16.23    6.5   81.9   -4.2
2012-12-13 07:00  16.34    5.6   81.9   -3.9
2012-12-14 07:00  16.46    5.0   82.0   -3.5
2012-12-17 07:00  16.92    5.8   82.2   -2.7
2012-12-18 07:00  17.09    6.5   82.3   -2.4
2012-12-21 07:00  17.56    8.9   82.8   -1.8

Data Points: 488
Discovered:     
Family/Group: NEA
Taxonomic Class: S&
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)

Known binary (radar; Benner et al.) P_Orb = 17.976 h. The results here are somewhat longer than those found by Pravec et al. who used a subset of the 2012 PDO data. Attempts to force the full PDO data set to their results were not convincing.

 

Contents © 2013 Brian D. Warner / Palmer Divide Observatory

 

 

 

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