Table information for 'applause.main'


Table Description: A redux of the calibrated subset of APPLAUSE to the obscore schema, with constant columns removed.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: APPLAUSE DR3 contains images and metadata from 24 plate collections in Hamburg, Bamberg, Potsdam, Tautenburg and Tartu, a total of 101138 scans of 70276 photographic plates. The present table contains metadata records for singly exposed plates with astrometric solutions in APPLAUSE (about 44000). It is mainly intended as a basis for publishing suitable APPLAUSE plates in the Obscore schema through the TAP service in GAVO's Heidelberg Data Center. A TAP service with more complete metadata and, in particular, extracted sources, is available at

For a list of all services and tables belonging to this table's resource, see Information on resource 'APPLAUSE DR3 Plate Scans'

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

  title={{APPLAUSE} DR3 Plate Scans},
  author={The {APPLAUSE} Project},
  howpublished={{VO} resource provided by the {GAVO} Data Center}


Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
obs_collection Collection Name of a data collection (e.g., project name) this data belongs to N/A
obs_id Obs. Id Unique identifier for an observation N/A
obs_title Title Free-from title of the data set N/A meta.title;obs
obs_publisher_did Pub. DID Dataset identifier assigned by the publisher. N/A meta.ref.ivoid
obs_creator_did Creator DID Dataset identifier assigned by the creator. N/A
access_url Access URL The URL at which to obtain the data set. N/A meta.ref.url
access_format Media Type MIME type of the resource at access_url N/A meta.code.mime
access_estsize Size Estimated size of data product kbyte phys.size;meta.file
target_name Target Name Object a targeted observation targeted N/A;src
target_class Target Class Class of the target object (star, QSO, ...) N/A src.class
s_ra RA RA of (center of) observation, ICRS deg pos.eq.ra
s_dec Dec Dec of (center of) observation, ICRS deg pos.eq.dec
s_fov FoV Approximate spatial extent for the region covered by the observation deg phys.angSize;instr.fov
s_region coverage Region covered by the observation, as a polygon N/A pos.outline;obs.field
s_resolution Space Res. Best spatial resolution within the data set arcsec pos.angResolution
t_min Min. t Lower bound of times represented in the data set d time.start;obs.exposure
t_max T_max Upper bound of times represented in the data set d time.end;obs.exposure
t_exptime Exp. Time Total exposure time s time.duration;obs.exposure
em_min λ_min Minimal wavelength represented within the data set m em.wl;stat.min
em_max λ_max Maximal wavelength represented within the data set m em.wl;stat.max
o_ucd Obs. UCD UCD for the product's observable N/A meta.ucd
facility_name Facility Name of the facility at which data was taken N/A;
instrument_name Instrument Name of the instrument that produced the data N/A;instr
s_xel1 |X| Number of elements (typically pixels) along the first spatial axis. N/A meta.number
s_xel2 |Y| Number of elements (typically pixels) along the second spatial axis. N/A meta.number
s_pixel_scale Pix. Scale Sampling period in world coordinate units along the spatial axis arcsec phys.angSize;instr.pixel
preview Preview URL for a preview of the image N/A meta.ref.url;meta.preview
emulsion Emulsion Emulsion of the original plate (from observatory log). N/A instr.plate.emulsion
filter Filter Filter used (from observatory log). N/A;instr.filter;meta.main

Columns that are parts of indices are marked like this.


VO nerds may sometimes need VOResource XML for this table.


Note calib

The calib_level flag takes the following values:

0 Raw Instrumental data requiring instrument-specific tools
1 Instrumental data processable with standard tools
2 Calibrated, science-ready data without instrument signature
3 Enhanced data products (e.g., mosaics)