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The Minor Planet Observer
and
Palmer Divide Observatory

42811 1999 JN81 (2012)

MPC Designation: 1999 JN81
Lightcurves Period (h): 3.897 ± 0.002
Amplitude (mag): 0.15 ± 0.01
Equipment:

 

Filter: C
MagBand: V
Telescope: 0.35m f/9.1 SCT
Camera: STL-1001E
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2012-06-23 07:00  16.11   28.1  281.4   36.1
2012-06-24 07:00  16.11   28.1  281.6   36.2
2012-06-25 07:00  16.11   28.1  281.8   36.4
2012-06-26 07:00  16.10   28.2  281.9   36.5

Data Points: 142
Discovered: 1999-05-07  Socorro  LINEAR
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)

Followup to PDO observations in 2007.

 

Contents © 2012 Brian D. Warner / Palmer Divide Observatory

 

 

 

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