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5646 1990 TR (2012)
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MPC Designation: |
1990 TR |
| Lightcurves |
Period (h): |
3.1999 ± 0.0002 |
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Amplitude (mag): |
0.12 ± 0.01 |
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Equipment: |
Filter: C
MagBand: V
Telescope: 0.30m f/9.6 SCT
Camera: ST-9XE
Exposure: 240 |
|
Obs. Details |
Date E Mag Phase PABL PABB
2012-11-22 07:00 15.36 10.5 61.2 11.0
2012-11-24 07:00 15.42 10.4 61.5 11.1
2012-11-25 07:00 15.46 10.5 61.6 11.1
2012-12-04 07:00 15.84 12.9 63.0 11.3
2012-12-07 07:00 15.99 14.2 63.5 11.3
2012-12-10 07:00 16.14 15.4 64.1 11.3
2012-12-12 07:00 16.24 16.3 64.5 11.3
2012-12-13 07:00 16.29 16.7 64.7 11.3
2012-12-14 07:00 16.34 17.1 64.8 11.3
2012-12-17 07:00 16.50 18.4 65.5 11.3
2012-12-18 07:00 16.54 18.8 65.7 11.2
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Data Points: |
551 |
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|
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Discovered: |
1990-10-11 Kushiro S. Ueda, H. Kaneda |
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Family/Group: |
NEA |
|
Taxonomic Class: |
S (Assumed) |
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Published: |
MPB 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)_Probable_ new binary discovery. The orbital period, P_orb = 19.47 h, is almost an exact 6:1 ratio of the short period, meaning the secondary period may be the result of the Fourier analysis latching onto noise. The same results were found using orders of 2,3,4,5,6,7, which somewhat favors the result being real and not a processing artifact. |
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Contents © 2013 Brian D. Warner / Palmer Divide Observatory |
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