Segment



A Segment corresponds to a single camera column within a chunk. See chunk object description for more details.


Aliases: sxSegment, segment

Data Members of Segment:
Member Name/AliasesDatatypeDescription
segment_ID;
id;
segID
int64 Unique segment identifier
run int32 Run number of this segment
camCol int32 Camera column number (1-6)
rerun int32 Rerun number
field0 int32 Starting field number
nFields int32 Number of fields in segment
dscale int32 Scaling for bias
strip int16 Strip (N or S)
status int16 Status 'primary' 'secondary' or 'bad'
resolved int16 Resolved flag (yes/no)
exported int16 Exported flag (yes/no)
families int16 Families identified flag (yes/no)
loadMJD float64 Date / Time at loading of database
equinox float64 Great Circle Equinox
node float64 Great Circle Ascending Node
incl float64 Great Circle Inclination
cObs;
c_obs
float64 CCD Clock rate
tracking float64 Tracking Rate
raMin;
ramin
float64 Lowest J2000 RA
raMax;
ramax
float64 Highest J2000 RA
decMin;
decmin
float64 Lowest J2000 DEC
decMax;
decmax
float64 Highest J2000 DEC
lMin;
lmin
float64 Lowest Galactic Lambda
lMax;
lmax
float64 Highest Galactic Lambda
bMin;
bmin
float64 Lowest Galactic Beta
bMax;
bmax
float64 Highest Galactic Beta
lambdaMin;
lambdamin
float64 Lowest Survey Lambda
lambdaMax;
lambdamax
float64 Highest Survey Lambda
etaMin;
etamin
float64 Lowest Survey Eta
etaMax;
etamax
float64 Highest Survey Eta
photoId;
photo_id
char[32] Photo ID tag
photoVersion;
phot_ver
char[32] Photo Version
targetAstroId;
tast_id
char[32] Astrometric Pipeline used for Target
targetAstroVersion;
tast_ver
char[32] Astrometric Pipeline version used for target selection
exportAstroId;
eastr_id
char[32] Astrometric calibration used for export to Science Archive.
exportAstroVersion;
eastr_ver
char[32] Astrometric pipeline version used for export to Science Archive.
targetFCalibId;
tfcal_id
char[32] Photometric calibration used for target selection.
targetFCalibVersion;
tfcal_ver
char[32] FCALIB pipeline version used for target selection
exportFCalibId;
efcal_id
char[32] Photometric calibration used for export to Science Archive.
exportFCalibVersion;
efcal_ver
char[32] FCALIB pipeline version used for export to Science Archive.
LoaderVersion;
loaderVersion;
load_ver
char[32] Version of Science Archive Loader used to load this segment
objectSource;
obj_src
char[32] Object Source
targetSource;
targ_src
char[32] Target Source
targetVersion char[32] Target version
skyMask_;
skyMask
uint32[] BitMask encoded which HTM nodes are covered by this segment
skyMaskLength_;
skyMaskLength
uint32 Length of BitMask
field;
Field
ManyAssoc(Field) Link to Fields in this segment
chunk;
Chunk
OneAssoc(Chunk) Link to the chunk this segment belongs to

© Copyright 2000 Peter Z. Kunszt Alex S. Szalay , Ani R. Thakar
and The SDSS Collaboration