The video to show a magnified view of the sky, this is why the velocity appears fast. The person who recorded the video stated that he could only see the object through the camera lens, not by eye. Using the moon as a reference I calculated a velocity of 7,775 m/sec (I assumed that the object was in stable orbit). This is a reasonable velocity for a LEO's object but I am new to this activity so I defer to others who are more experienced. Best regards, Chris Zietkiewicz kc0ver@greenspeedisp.net Kevin Z Grey wrote: > I think they may have sped up the frame rate on the video to make it easier to see. > > -----Original Message----- > From: Chris Zietkiewicz [mailto:magritte7919@greenspeedisp.net] > Sent: Tuesday, June 10, 2008 1:51 PM > To: k4hsm@knology.net > Cc: seesat-l@satobs.org > Subject: Re: Interesting video from San Jose > > I did some calculations using the moon as a reference and calculated an > altitude of 220 km for the San Jose object (apparent observer velocity > of 2 deg of arc per second). I do not have access to daytime satellite > positions to advance this analysis any further. Maybe someone else can > do the balance of the work, Oakland, CA is at 37.77 by -122.22, sea > level. Observation was just after 3:00 PM local time. > > Chris Zietkiewicz > kc0ver@greenspeedisp.net > > k4hsm@knology.net wrote: > >> http://www.ktvu.com/news/16548130/detail.html >> >> They were wondering if this was a daytime satellite or some kind of UFO passing near the moon, but its speed is way too fast for a satellite I would think. >> >> The only satellite that it could be would be the ISS or an Iridium, but they don't move that quick across the sky. >> >> Greg Williams >> k4hsm@knology.net >> >> ------------------------------------------------------------------------- >> Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: >> http://www.satobs.org/seesat/seesatindex.html >> >> >> >> >> > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: > http://www.satobs.org/seesat/seesatindex.html > > > > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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