Search Parameters

Primary survey/waveband: UKST Blue: -90 < Dec < +3.0 UKST Red: -90 < Dec < +3.0 UKST Infrared: -90 < Dec < +3.0 ESO Red: -90 < Dec < -17.5 POSS I Red: -21.0 < Dec < +3.0 POSS I Red: +2.5 < Dec < +90 POSS II Blue: +2.0 < Dec < +90 POSS II Red: +2.0 < Dec < +90 POSS II InfraRed: +2.0 < Dec < +90

Size of extracted box: x- y- arcmin.
(If y=0 then a circular extraction is performed with radius=x)

Extract objects fainter than mags and brighter than mags
(These default values will give you all objects.)

Output Parameters

Epoch of output coordinates:
(A value of 0.0 will output positions at the epoch of the plate.)

Format of output catalogue/table ASCII Tab separated ASCII FITS

"Expert" Parameters

Purge repeat/duplicate objects in overlap regions or keep all data:
purge keep

Output most useful subset of master IAM data or output all 32 master IAM parameters?:
subset all

Blended image option - choose one of: Discard parent images of deblends Discard child images of deblends Include parent and child images of deblends Keep only unblended images (ie. discard parents & children)

Image quality threshold (images having quality flag > threshold will be discarded; input 99999999 to keep all images regardless of quality flag, or use a threshold of 127 for the "best" catalogue)

Pairing radius: 3 6 arcsec

Colour correct magnitudes: yes no