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Re: new satellite

  • From: "Richard P. Mroczynski" <rmro@xxxxxxxxxxxxx>
  • Subject: Re: new satellite
  • Date: Sat, 17 Apr 1999 11:34:47 -0400



Phil wrote
> Yesterday NASA launched a new mapping satellite. 
> Landsat 7. It has 7 spectral band imaging. One is
> pancromatic, others are narrow band IR.
> ******************************************************

If Landsat 7 successfully made orbit that is good news. It
will replace Landsat 5 which was luanched in March 1984.

Unfortunately, it is the same technology as Landsat 5, and
that dates back to the mid-1970s. The only difference is the
15 meter ground resolution panchromatic band, while the other
7 bands are either 30 meter or 120 meter (as is the case with
the true infrared band.)

Altitude is 704 km and the repeat frequency-the time it takes
to acquire the the globe and return to where it started is
16 days.

Cheers!

--
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Richard P. Mroczynski
16960 Teagues Point Road
Hughesville, MD 20637-2848
ph 301-932-5709, fax 301-274-4024, cell 301-641-0050
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