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Guide Star Catalogue Codes

GSC Classification Codes
Class/Qual Code Description Notes
0x Star Quality code x (0=guess,1=poss,2=prob,3=sure)
1x Galaxy -
22 Blend N.B. 20 used for reclassified bright star defects
3x Non-Star galaxies/blends/defects/etc
4 Unclassified -
5 Artifact -

GSC Bandpass Codes
Code Bandpass Emulsion/Filter Notes
0 J IIIaJ+GG395 SERC-J/EJ
1 V IIaD+W12 Pal Quick-V
3 B - Johnson
4 V - Johnson
5 R IIIaF+RG630 -
6 V495 IIaD+GG495 Pal QV/AAO XV
7 O 103aO+no filter POSS-I Blue
8 E 103aE+red plexi POSS-I Red
9 R IIIaF+RG630
10 - IIaD+GG495+yellow objective GPO Astrograph
11 - 103aO+blue objective Black Birch Astrograph
12 - 103aO+blue objective Black Birch Astrograph (GSC cal)
13 - 103aG+GG495+yellow objective Black Birch Astrograph
14 - 103aG+GG495+yellow objective Black Birch Astrograph (GSC cal)
16 J IIIaJ+GG495 -
18 V IIIaJ+GG385 POSS-II Blue
19 U - Johnson
20 R - Johnson
21 I - Johnson
22 U - Cape
23 R - Kron
24 I - Kron

GSC Flags (IIPDGBFN)
Flag Name Description Notes
IIPDGBFN Cross Index HST ops ast/phot db object
IIPDGBFN Cross Index HST ops non-ast/phot db object
IIPDGBFN Published Object Record is frozen and cannot be deleted
IIPDGBFN Deleted Object deleted from GSC
IIPDGBFN Good Successful Guide Star (NOT implemented)
IIPDGBFN Bad Unsuccessful Guide Star (NOT implemented)
IIPDGBFN Further records Multiple object records (eg. multiple plates)
IIPDGBFN Not Plate Measure Object entered from catalog instead of a plate

 

Last Updated Jan 2001
Copyright 2001 The Association of Universities for Research in Astronomy, Inc. All Rights Reserved.

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Last Modified: 2006-04-06 21:04