APPLAUSE

The table has 68576 rows, 38 columns.

Description

Exposure time and observation time for plates. Observing time is given (if possible and available) in various formats. Unique Identifier exposure_id

Attribution

If you have made substantial use of the data provided by APPLAUSE DR2, 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 Nuernberg/Erlangen), the Hamburger Sternwarte (University of Hamburg) and Tartu Observatory.

Columns

Name	Type	UCD	Unit	Description
exposure_id	int	meta.id		Exposure identification number
plate_id	int	meta.id		Plate identification number
archive_id	int	meta.id		Archive identification number
exposure_num	short	meta.record		Exposure sequence number. For single exposures, the number is always 1.
object_name	char	meta.id		Name of the observed object or field
object_type	char	meta.code		Object type, as listed in the WFPDB
ra_orig	char	pos.eq.ra		Original recorded right ascension of the telescope pointing (plate center)
dec_orig	char	pos.eq.dec		Original recorded declination of the telescope pointing (plate center)
flag_coord	char	meta.code.qual		Quality flag of the recorded coordinates (right ascension and declination)
raj2000	double	pos.eq.ra	deg	Right ascension of the source (equinox J2000)
dej2000	double	pos.eq.dec	deg	Declination of the source (equinox J2000)
raj2000_hms	char	pos.eq.ra		Right ascension of the plate center (equinox J2000) in sexagesimal format
dej2000_dms	char	pos.eq.dec		Declination of the image center (equinox J2000) in sexagesimal format
date_orig_start	char	time.start obs.exposure		Original recorded date of the exposure start (evening date)
date_orig_end	char	time.end obs.exposure		Original recorded date of the exposure end (evening date)
time_orig_start	char	time.start obs.exposure		Original recorded time of the exposure start
time_orig_end	char	time.end obs.exposure		Original recorded time of the exposure end
flag_time	char	meta.code.qual		Quality flag of the recorded observation time
ut_start	char	time.start obs.exposure	Time[yyyy-mm-dd hh:mm:ss]	UT date and time of the exposure start
ut_mid	char	time.epoch obs.exposure	Time[yyyy-mm-dd hh:mm:ss]	UT date and time of the mid-point of exposure
ut_weighted	char	time.epoch obs.exposure	Time[yyyy-mm-dd hh:mm:ss]	UT date and time of the weighted mid-point of exposure
ut_end	char	time.end obs.exposure	Time[yyyy-mm-dd hh:mm:ss]	UT date and time of the exposure end
year_start	double	time.start obs.exposure		Decimal Julian year of the start of exposure
year_mid	double	time.epoch obs.exposure		Decimal Julian year of the mid-point of exposure
year_weighted	double	time.epoch obs.exposure		Decimal Julian year of the weighted mid-point of exposure
year_end	double	time.end obs.exposure		Decimal Julian year of the end of exposure
jd_start	double	time.start obs.exposure		Julian date at the start of exposure
jd_mid	double	time.epoch obs.exposure		Julian date at the mid-point of exposure
jd_weighted	double	time.epoch obs.exposure		Julian date at the weighted mid-point of exposure
jd_end	double	time.end obs.exposure		Julian date at the end of exposure
hjd_mid	double	time.epoch obs.exposure		Heliocentric Julian date at the mid-point of exposure
hjd_weighted	double	time.epoch obs.exposure		Heliocentric Julian date at the weighted mid-point of exposure
exptime	float	time.interval obs.exposure	s	Exposure time
num_sub	short	meta.number		Number of sub-exposures
method	short	meta.code		Observation method. A list of possible values is given in the WFPDB.
focus	float	stat.value		Focus value (from logbook)
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

Access

You can access this table using the query interface and download the results afterwards.

Digital object identifier

You can use the following DOI to cite this table in a publication:

https://doi.org/10.17876/plate/dr.2/002

License

This dataset is published under the CC0 1.0 Universal (CC0 1.0).