| 1620 Geographos |
Result | Rotation Period : 0.217585 +/- 0.000003 day Amplitude : 1.385 +/- 0.002 mag, |
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| Observational date: 2008-Jan, 31 Feb, 05, 06, 08, 14, 16, 17,
18, 19 ( 9 nights) Zero time of the graph: 2008 Jan, 31.56000 day (UT) Observational site: Hamanowa Astronomical Observatory (fukushima-pref, Japan) Telescope : Pellow telescope (D=400mm fl=1800mm Newtonian F=4.5 CCD camera : SBIG ST-8 Filter system : Idas-R (UBVRI) Dark and Flat : Dark-frame and Flat-field were corrected. Light time : corrected. Remarks : NEO |
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