Archives of Photographic PLates for Astronomical USE

Sub-exposures (applause_dr3.exposure_sub)

The table has 2334 rows, 17 columns.

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 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
subexposure_id int meta.id
meta.main

Sub-exposure identification number

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 char time.start
obs.exposure
Time[yyyy-mm-dd hh:mm:ss]

UT date and time of the start of exposure

ut_mid char time.epoch
obs.exposure
Time[yyyy-mm-dd hh:mm:ss]

UT date and time at the mid-point of sub-exposure

ut_end char 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 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