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Glossary of VULCAN attributes
This Glossary alphabetically lists all attributes used in the VULCANv20260525 database(s) held in the ASNIR. If you would like to have more information about the schema tables please use the VULCANv20260525 Schema Browser (other Browser versions).

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

F
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
fg_flg	twomass_xsc	TWOMASS	flux-growth convergence flag.	varchar	6			meta.code
fileName	Multiframe	VULCANiDR	the filename for the multiframe, eg. server:/path/filename.fit	varchar	256		'NONE'	meta.id;meta.file
filterID	Detection	PS1DR2	Filter identifier. Details in the Filter table.	tinyint	1
filterID	Filter, RequiredFilters	VULCANiDR	UID of combined filter (assigned in VSA: 1=Z,2=Y,3=J,4=H,5=Ks)	tinyint	1			meta.code;instr.filter
filterID	Multiframe	VULCANiDR	UID of combined filter (assigned in VSA: 1=Z,2=Y,3=J,4=H,5=Ks)	tinyint	1		0	meta.code;instr.filter
filterType	Filter	VULCANiDR	The type of filter BROAD, NARROW, BROADLIST	varchar	16		NONE
focus	twomass_scn	TWOMASS	Focus setting of telescope at beginning of scan.	smallint	2			instr.tel.focalLength
focus	twomass_sixx2_scn	TWOMASS	telescope focus setting	smallint	2
frameSetExtent	allSkyNIRFrameSetInfo	VULCANiDR	The maximum angular extent from the central position	real	4	Arcminutes	-0.9999995e9	pos.angDistance
frameSetID	allSkyNIRFrameSetInfo	VULCANiDR	UID of frame set, unique over the whole VSA/WSA via programme ID prefix, assigned by merging procedure	bigint	8			meta.id;meta.main;obs.field
			Each merged source in the merged source tables come from a set of individual passband frames (with different filters and/or different epochs of observation). In the WSA, a frame is generally the image provided by one detector (dither-stacked and interlaced as appropriate); hence a frame set comprises a set of individual detector frames in different passbands and/or at different observation epochs. Each frame set is uniquely identified by the attribute frameSetID, and this references a row in the corresponding merge log for the source table (for example, lasSource.frameSetID references lasMergeLog.frameSetID. The merge log in turn references the full set of image descriptive data held in the tables MultiframeDetector and ultimately Multiframe (these two tables map directly onto the multi-extension FITS file hierarchy of extension FITS headers beneath a single primary HDU FITS header - primary HDU FITS keys will be found in Multiframe, while the corresponding extension FITS keys for each primary set will be found in table MultiframeDetector). In this way, you can trace the provenance of a merged source record right back to the individual image frames from which it is derived.
frameSetID	allSkyNIRSource	VULCANiDR	UID of the set of frames that this merged source comes from	bigint	8			meta.id
			Each merged source in the merged source tables come from a set of individual passband frames (with different filters and/or different epochs of observation). In the WSA, a frame is generally the image provided by one detector (dither-stacked and interlaced as appropriate); hence a frame set comprises a set of individual detector frames in different passbands and/or at different observation epochs. Each frame set is uniquely identified by the attribute frameSetID, and this references a row in the corresponding merge log for the source table (for example, lasSource.frameSetID references lasMergeLog.frameSetID. The merge log in turn references the full set of image descriptive data held in the tables MultiframeDetector and ultimately Multiframe (these two tables map directly onto the multi-extension FITS file hierarchy of extension FITS headers beneath a single primary HDU FITS header - primary HDU FITS keys will be found in Multiframe, while the corresponding extension FITS keys for each primary set will be found in table MultiframeDetector). In this way, you can trace the provenance of a merged source record right back to the individual image frames from which it is derived.
frameSetTolerance	Programme	VULCANiDR	The match tolerance for different passband frames	real	4	Degrees		??
frameType	Multiframe	VULCANiDR	The type of multiframe (e.g. stack|tile|mosaic etc.) A multiframe can have a combination of different types.	varchar	64		normal	meta.code.class
			The frame types and their abbreviations are: confidence = "conf" dark = "dark" deep = "deep" difference = "diff" filtered = "filt" flat = "flat" interleaved = "leav" mosaic = "mosaic" sky = "sky" stack = "stack" default value = "normal"