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Specifications for Selection of UIT for Scrapbook
MISSION: UIT (ASTRO)
General goal: show UIT images in two ultraviolet wavelength bands.
| Filter choice for all bands, in ranked order | ||
|---|---|---|
| Far-UV | Near-UV | |
| 1st choice | B5 | A1 |
| 2nd choice | B1 | A5 |
| 3rd choice | B6 | A2 |
| 4th choice | B4 | A4 |
| 5th choice | B3 | A3 |
| 6th choice | B2 | |
When more than one image with the same filter is available, pick the one with the longest exposure time. If there is more than one having the same exposure time, select the latest one.
Definition of individual pointing
The field of view is a 40' circle. A unique pointing is defined by a separation of 10' of any other exposure.
Wavelength Bands
Far-UV (B-filter) bands are centered in the range 1400--1600Å; near-UV (A-filter) bands are centered in the range 1900--2500Å. (described at http://archive.stsci.edu/uit/inst_ops.html
Problems
Scratches on some Astro-1 images.
Comments
Data are images digitized from photographic film.
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