07 March 2007

7 March 2007

The ISS is supposed to pass over the disk of the Sun late tomorrow afternoon. I have tried to observe this several times before but always without success. I don't know if the ISS is bigger since the recent construction events or if the gain in one place has been offset by losses in other places, but if the weather clears I may give this another try, this time with the telescope.

Right now they are calling for clouds and snow during the day with rapid clearing beginning right about 1600 EDT so this is a very iffy proposition.


NOAA graphic

16h36m12.54sISS Crosses the disk of SunSeparation=0.210° Position Angle=323.9°
Angular Velocity=21.5'/s. Transit duration=0.94s
Angular diameter=16.8" size=73.0m x 44.5m x 27.5m
Satellite at Azimuth=251.2° WSW Altitude= 13.9° Distance=1102.6 km
Satellite apparently moves to clock-face direction 9:20 o'clock
Centerline, Closest Point: Longitude= 73°52'52" W Latitude=+40°51'57" (New York Botanic Garden, Bronx, NY) Distance=14.05 km (from observing location: New York, Ny, United States, WGS84: Lon: -73d58m34.7s Lat: +40d45m42.8s Alt: -19m [5/6 Aves, 54/55 Sts) Azimuth= 34.7° NE Path direction: 124.8° SE ground speed: 8.516 km/s width: 13.4 km max. duration: 1.5 s

CalSky graphic

It looks like I might be able to see this briefly from TotL, but given the short duration I will have a better chance from the Bronx.

MapQuest graphic

posted by Charlie at 14:16

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