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The Minor Planet Observer
and
Palmer Divide Observatory

217807 2000 XK44 (2009)

MPC Designation: 2000 XK44
Lightcurves Equipment:

 

Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 60

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2009-11-05 08:00  13.34   13.8   48.5   -7.0
2009-11-05 09:30  13.33   13.7   48.6   -6.9
2009-11-05 10:15  13.33   13.7   48.6   -6.8
2009-11-06 06:00  13.29   12.4   49.6   -5.5
2009-11-06 08:00  13.29   12.3   49.8   -5.4
2009-11-07 05:00  13.26   11.4   50.8   -4.0
2009-11-08 03:30  13.24   10.9   51.9   -2.5
2009-11-08 06:00  13.24   10.9   52.0   -2.3
2009-11-10 02:15  13.30   11.5   54.0    0.5
2009-11-10 05:45  13.31   11.6   54.2    0.8
2009-11-10 07:30  13.31   11.7   54.2    0.9
2009-11-11 02:45  13.37   12.4   55.1    2.0
2009-11-11 04:45  13.38   12.5   55.2    2.1
2009-11-11 07:00  13.39   12.6   55.3    2.3
2009-11-17 02:15  14.01   19.9   60.8    9.3
2009-11-17 04:30  14.02   20.0   60.8    9.4
2009-11-17 07:00  14.03   20.1   60.9    9.6
2009-11-17 09:45  14.04   20.2   61.0    9.7
2009-11-17 12:00  14.05   20.3   61.1    9.8
2009-11-18 03:00  14.12   21.0   61.6   10.4
2009-11-18 06:00  14.14   21.2   61.7   10.5
2009-11-18 08:45  14.15   21.3   61.8   10.6
2009-11-18 11:00  14.16   21.4   61.9   10.7
2009-11-19 02:30  14.23   22.0   62.5   11.3
2009-11-19 05:15  14.24   22.2   62.5   11.4
2009-11-19 09:00  14.25   22.3   62.7   11.5
2009-11-19 11:00  14.27   22.4   62.7   11.6
2009-11-20 02:15  14.34   23.0   63.3   12.1
2009-11-20 04:45  14.35   23.1   63.4   12.2
2009-11-20 07:45  14.36   23.2   63.5   12.3
2009-11-20 09:00  14.37   23.3   63.5   12.3
2009-11-21 02:30  14.44   23.9   64.1   12.9
2009-11-21 05:30  14.45   24.0   64.2   13.0
2009-11-21 07:15  14.46   24.0   64.2   13.1
2009-11-21 09:15  14.47   24.1   64.3   13.1
2009-11-22 08:15  14.57   24.9   65.0   13.8
2009-11-22 10:30  14.58   24.9   65.1   13.9
2009-11-23 05:00  14.65   25.5   65.7   14.4
2009-11-23 07:30  14.66   25.6   65.8   14.5
2009-11-23 10:00  14.67   25.6   65.9   14.6
2009-11-24 02:30  14.74   26.1   66.4   15.0
2009-11-24 06:00  14.75   26.2   66.5   15.1
2009-11-24 07:00  14.76   26.2   66.5   15.1
2009-11-25 03:00  14.84   26.7   67.1   15.6
2009-11-25 07:00  14.85   26.8   67.3   15.7
2009-11-25 09:00  14.86   26.8   67.3   15.8

Data Points: 2826
Discovered: 2000-12-05  Socorro  LINEAR
Family/Group: NEA
Taxonomic Class: C
Published: MPB 37, 86
NOTES: Unless otherwise stated, the "Reduced Magnitudes" in the plots are Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)

Collaboration with P. Pravec, A.W. Harris, R.D. Stephens, D.P. Pray.

This is an unusually good example of a tumbler lightcurve. The data are phased to the two periods found in the analysis. Which is the primary rotation and which is the preces"100%">

 

 

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