Archives of Photographic PLates for Astronomical USE

Scans of photographic plates (applause_dr3.scan)

The table has 101143 rows, 28 columns.

Description

The scan table registers all ingested scans of the photographic plates, giving sizes, etc. A scan is a high-resolution image of a photographic plate or film. There can be multiple scans of a single plate. Unique Identifier scan_id

Attribution

If you have made substantial use of the data provided by APPLAUSE DR3, kindly include this acknowledgement

Funding for APPLAUSE has been provided by DFG (German Research Foundation, Grant), Leibniz Institute for Astrophysics Potsdam (AIP), Dr. Remeis Sternwarte Bamberg (University Nürnberg/Erlangen), the Hamburger Sternwarte (University of Hamburg) and Tartu Observatory. Plate material also has been made available from Thüringer Landessternwarte Tautenburg.

Columns

Name Type UCD Unit Description
scan_id int meta.id

Scan identification number

plate_id int meta.id

Plate identification number

archive_id int meta.id

Archive identification number

filename_scan char meta.ref
meta.file
meta.fits

Name of the scan file

filename_wedge char meta.ref
meta.file
meta.fits

Name of the wedge scan file

naxis1 short meta.number

Length of data axis 1 (number of pixels in a row)

naxis2 short meta.number

Length of data axis 2 (number of rows)

minval int phot.count
stat.min

Minimum pixel value in the image

maxval int phot.count
stat.max

Maximum pixel value in the image

scanner char meta.id

Name of the device used for digitizing the plate

scan_res1 short meta.unit dpi

Scan resolution along axis 1

scan_res2 short meta.unit dpi

Scan resolution along axis 2

pixel_size1 float phys.size um

Pixel size along axis 1

pixel_size2 float phys.size um

Pixel size along axis 2

scan_software char meta.id
meta.software

Name of the scanning software

scan_gamma float meta.unit

Scan gamma value

scan_focus char meta.unit

Scan focus setting

wedge char meta.code
meta.cryptic

Type of photometric step-wedge

scan_date char time.epoch
time.creation

Scan date and time

scan_author char meta.id

Author of the scan

scan_notes char meta.note

Notes about the scan

origin char meta.curation
instr.obsty

Institute responsible for the scan

file_datetime char time.creation
meta.file
Time[yyyy-mm-dd hh:mm:ss]

Timestamp of the last change of file

file_size long meta.number
meta.file
byte

File size

fits_checksum char meta.note
meta.file
meta.fits

Checksum of the FITS file (from the CHECKSUM header keyword)

fits_datasum char meta.note
meta.file
meta.fits

Checksum of the image part of the FITS file (from the DATASUM header keyword)

timestamp_insert char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of insert

timestamp_update char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of last update