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The Minor Planet Observer
and
Palmer Divide Observatory

2007 Shoemaker Grant Recipient

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223 Rosa

MPO Home Period (h): 9.91 or 19.83 ±0.01  (monomodal or bimodal)
Lightcurves Amplitude (mag): 0.06 ± 0.01
Date Range (mm/dd): 2007  Mar 26 - Apr 08
Data Points: 178
Equipment: 0.5m Ritchey-Chretien, FLI 1001E
Discovered: Mar 03, 1882  J. Palisa at Vienna
Previous Designations: 1942 EL, A887 BA
Family/Group: Themis; Kozai: 56; Brouwer: 1
Taxonomic Class: Tholen: X
H (absolute mag): MPCORB: 9.68; Bdw: 9.72 ± 0.04
Diameter (km) / albedo: IRAS: 87.61 ± 4.4 / 0.0309 ± 0.003
SM Axis (AU): 3.0907
Inclination (deg): 1.9394
Eccentricity: 0.1231
Published: Minor Planet Bul. 34, 104-107 (lightcurve)
Minor Planet Bul. 34, 113-119 (H-G)
NOTES: The plot is for the shorter period. Given the low amplitude, a monomodal curve is not out of the question. If so, then the viewing aspect may have been pole on. The data were insufficient to get a "good" fit to the bimodal curve and longer period.

 

Contents © 2007 Brian D. Warner / Palmer Divide Observatory

 

 

 

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