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The Minor Planet Observer
and
Palmer Divide Observatory

31831 1999 YL (2012)

MPC Designation: 1999 YL
Lightcurves Period (h): 3.63 ± 0.02
Amplitude (mag): 0.10 ± 0.01
Equipment:

 

Filter: C
MagBand: V
Telescope: 0.30m f/9.6 SCT
Camera: ST-9XE
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2012-10-09 07:00  17.57   14.1    6.8   21.3
2012-10-11 07:00  17.58   14.4    6.8   21.0
2012-10-22 07:00  17.74   17.0    7.1   19.1
2012-10-23 07:00  17.76   17.3    7.2   18.9

Data Points: 265
Discovered: 1999-12-16  Socorro  LINEAR
Family/Group: H
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)

At the edge of useful photometry for the telescope used. If only the amplitude had been doubled.

 

Contents © 2012 Brian D. Warner / Palmer Divide Observatory

 

 

 

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