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21056 1991 CA1 (2011)
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MPC Designation: |
1991 CA1 |
| Lightcurves |
Period (h): |
5.58 ± 0.02 |
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Amplitude (mag): |
0.13 ± 0.02 |
|
Equipment: |
Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: SBIG STL-1001E
Exposure: 240 |
|
Obs. Details |
Date E Mag Phase PABL PABB
2011-01-02 07:00 15.80 12.9 108.1 -14.6
2011-01-03 07:00 15.78 12.4 108.1 -14.3
2011-01-04 07:00 15.76 11.9 108.2 -13.9
2011-01-05 07:00 15.74 11.4 108.2 -13.6
2011-01-06 07:00 15.72 11.0 108.2 -13.3
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Data Points: |
110 |
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Discovered: |
1991-02-14 Palomar E. F. Helin |
|
Family/Group: |
Hungaria |
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Taxonomic Class: |
ES (Assumed) |
|
Published: |
MPB 38, pending |
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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)The asteroid was in crowded fields. StarBGone in Canopus helped a little but, for the most part, only images where there were no interferring stars were used. |
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Contents © 2011 Brian D. Warner / Palmer Divide Observatory |
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