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The Minor Planet Observer
and
Palmer Divide Observatory

1506 Xosa (2001)

MPC Designation: 1939 JC
Lightcurves Period (h): 295 10
Amplitude (mag): 0.30 0.05
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.5m f/8.1 R/C
Camera: FLI 1001E
Exposure: 40

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2001-07-21 07:00  13.74   12.2  300.1   17.5
2001-07-25 07:00  13.76   12.3  300.6   17.6
2001-07-27 07:00  13.78   12.5  300.8   17.7
2001-07-29 06:00  13.80   12.8  301.1   17.8
2001-07-30 06:00  13.82   12.9  301.2   17.8
2001-08-01 06:00  13.85   13.3  301.4   17.9
2001-08-02 07:00  13.86   13.7  301.5   17.9
2001-08-03 06:00  13.88   13.7  301.7   17.9
2001-08-08 06:00  13.97   15.0  302.3   17.9

Data Points: 420
Discovered: 1939-05-15  Johannesburg  C. Jackson
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)

MPB 29, 6-7: P = 5.90, A = 0.28, U = 1. Remesured images using 2MASS conversions to calibrate sessions indicate this may be a very slow rotator. Other reports also indicate a period of 5.9 h but this could be caused by not calibrating the sessions and latching onto noise.

Period based on half-period solution and assumption the final curve is bimodal.

 

Contents 2011 Brian D. Warner / Palmer Divide Observatory

 

 

 

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