Today’s Three Named Storms – Color Image – 9-14-2010

Cropping and yellow insertions by T. Ansel Toney. Left click twice for full enlargement.

Dear Tropical Weather Watchers,

I cropped the image above from a full disk image.  It was taken from the 4:45 pm (EDT) transmission of the GOES-13 weather satellite which is positioned at an altitude of 22,300 miles above the Equator at longitude 75 West.  At that altitude it orbits earth with the same period of revolution as the earth’s spin on its axis.  Therefore it stays over the same point (though it can be moved either east or west if desired).  By contrast, the International Space Station orbits at only 236 miles above the surface and the U.S. Shuttle crafts fly lower than that sometimes but have also gone higher – up to 365 miles or so above the surface to the Hubble Telescope.  It should be noted that neither the Space Station, the Shuttles, nor the Hubble are on equatorial orbits like the GOES Weather Satellites but instead they are at an inclination of 51.6 degrees to the equator.

In this image provided the sun had gone well past zenith and therefore you can see the bright eastern side of Igor’s eye wall.  It’s a very impressive storm.

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