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217807 2000 XK44 (2009)
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MPC Designation: |
2000 XK44 |
| Lightcurves |
Period (h): |
51.9 ± 0.5 |
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Amplitude (mag): |
1.2 ± 0.03 |
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Equipment: |
Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 60 |
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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
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Data Points: |
2826 |
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Discovered: |
2000-12-05 Socorro LINEAR |
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Family/Group: |
NEA |
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Taxonomic Class: |
C |
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Published: |
MPB 37, 86 |
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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 precession period is not certain. Also, it's possible that the true periods are a linear combination of (X/P1 + Y/P2). As good as this data set is, it is not sufficient to resolve the system fully. |
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Contents © 2011 Brian D. Warner / Palmer Divide Observatory |
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