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The Minor Planet Observer
and
Palmer Divide Observatory

549 Jessonda (2006)

MPC Designation: 1904 PK
Lightcurves Period (h): 2.971 0.001
Amplitude (mag): 0.10 0.01
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 150

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2006-01-13 04:00  14.65   28.0   53.2    3.4
2006-01-14 04:00  14.66   28.1   53.5    3.3
2006-01-21 04:00  14.78   28.9   55.8    3.1
2006-01-22 04:00  14.79   29.0   56.1    3.0
2006-01-23 04:00  14.80   29.1   56.5    3.0

Data Points: 219
Discovered: 1904-11-15  Heidelberg  M. F. Wolf
Family/Group: MB-Middle
Taxonomic Class: S
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)

Originally reported as 5.938 h (MPB 33, 58-62), which would produce a bimodal curve and cannot be formally excluded. However, the fit is not as good and the low amplitude allows for a monomodal solution.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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