TABLE  FieldSystem

Contains information about the systems of field centres used in the SSA.

The Schmidt photographic surveys were based around predefined systems of
field centres. This table lists the ones employed in the photographic
surveys used to generate the SSA.

NameTypeLengthUnitDescriptionDefault ValueUnified Content Descriptor
systemIDtinyint1 The system of survey fields used for the survey ID_MAIN
namevarchar32 The name of the system, eg. "ESO/SRC", "POSS-I" etc. NOTE
centrePitchreal4degreesThe pitch of the field centres OBS_DIFF
Total length37