Archives of Photographic PLates for Astronomical USE

Sub exposures (applause_dr1.exposure_sub)

Description

This table contains data on sub-exposures. If an exposure of a photographic plate was interrupted, then it consists of two or more sub-exposures. Sub-exposures are related to exposures by exposure_id.

Attribution

If you have made substantial use of the data provided by APPLAUSE DR1, 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) and the Hamburger Sternwarte (University of Hamburg).

Columns

Name Type UCD Unit Description
exposure_id int meta.id Exposure identification number
plate_id int meta.id Plate identification number
exposure_num short meta.record Exposure sequence number
subexposure_num short meta.record Sub-exposure sequence number
date_orig_start char time.start
obs.exposure
Original recorded date of the sub-exposure (evening date)
time_orig_start char time.start
obs.exposure
Original recorded start time of the sub-exposure
time_orig_end char time.end
obs.exposure
Original recorded end time of the sub-exposure
ut_start timestamp time.start
obs.exposure
Time[yyyy-mm-dd hh:mm:ss] UT date and time of the start of exposure
ut_mid timestamp time.epoch
obs.exposure
Time[yyyy-mm-dd hh:mm:ss] UT date and time at the mid-point of sub-exposure
ut_end timestamp time.end
obs.exposure
Time[yyyy-mm-dd hh:mm:ss] UT date and time of the sub-exposure end
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_end double time.end
obs.exposure
Julian date at the end of sub-exposure
exptime float time.interval
obs.exposure
s Exposure time
timestamp_insert timestamp time.creation Time[yyyy-mm-dd hh:mm:ss] Timestamp of insert
timestamp_update timestamp time.creation Time[yyyy-mm-dd hh:mm:ss] Timestamp of last update