| stripe | Stripes are the sum of two strips, defined in survey coordinates (lambda, eta). A "stripe" is
defined by a line of constant eta, bounded on the north and south by
the edges of the two strips that make up the stripe, and bounded on
the east and west by lines of constant lambda. Because both strips and
stripes are defined in "observed" space, they are rectangular areas
which overlap as one approaches the poles. NOTE: You may see the term stripe used to mean an area
bounded by eta lines, which would be a unique part of the sky. That is
a common use of the term, as some of the target selection
documentation uses it that way. The proper (and relatively new) term
for the unique, eta-bound portion of a stripe is a stave.
|
