Exposure
ID
GRAVI.2025-11-11T04:53:52.022_1
Header ID
GRAVI.2025-11-11T04:53:52.022
Date updated
2025-11-11 05:05:53 UTC+0000
Release date
2025-11-11 04:53:52 UTC+0000
UTC Start
2025-11-11 04:53:52.022
UTC End
2025-11-11 04:56:32.022
MJD Start
60990.20407433
MJD End
60990.20592618186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003953
Ambient temperature (°C)
14.02
Seeing (arcsec)
0.5549999999999999
Observation
ID
71452
Category
calibrator
Program ID
116.28ZD.003
Program Title
DO SOME HOT SUBDWARF BINARIES DESCEND FROM HIERARCHICAL TRIPLES? NEW INSIGHTS FROM INTERFEROMETRY
Program Type
Normal
PI / COI
DESHMUKH / GEIER / SANA / DAWSON / DORSCH / HEBER / KUPFER
Target
ID
53066
Name
BSD_47-534
RA
52.96034
DEC
31.25875
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 37.8720 38.1710 41.2000 41.3000
U1-U3 73.3940 73.9720 48.6000 48.6000
U1-U4 119.0280 119.5660 72.2530 71.9580
U2-U3 36.1690 36.4330 56.3000 56.2000
U2-U4 88.7760 88.8880 84.9810 84.6090
U3-U4 59.6180 59.4170 101.8970 101.5590
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28ZD.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60990.20407433
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME BSD 47-534
HIERARCH ESO INS SOBJ NAME BSD_47-534
RA 52.96034
DEC 31.25875
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 37.872
HIERARCH ESO ISS PBL12 END 38.171
HIERARCH ESO ISS PBLA12 START 41.2
HIERARCH ESO ISS PBLA12 END 41.3
HIERARCH ESO ISS PBL13 START 73.394
HIERARCH ESO ISS PBL13 END 73.972
HIERARCH ESO ISS PBLA13 START 48.6
HIERARCH ESO ISS PBLA13 END 48.6
HIERARCH ESO ISS PBL14 START 119.028
HIERARCH ESO ISS PBL14 END 119.566
HIERARCH ESO ISS PBLA14 START 72.253
HIERARCH ESO ISS PBLA14 END 71.958
HIERARCH ESO ISS PBL23 START 36.169
HIERARCH ESO ISS PBL23 END 36.433
HIERARCH ESO ISS PBLA23 START 56.3
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 88.776
HIERARCH ESO ISS PBL24 END 88.888
HIERARCH ESO ISS PBLA24 START 84.981
HIERARCH ESO ISS PBLA24 END 84.609
HIERARCH ESO ISS PBL34 START 59.618
HIERARCH ESO ISS PBL34 END 59.417
HIERARCH ESO ISS PBLA34 START 101.897
HIERARCH ESO ISS PBLA34 END 101.559
HIERARCH ESO ISS AMBI TAU0 START 0.004267
HIERARCH ESO ISS AMBI TAU0 END 0.003639
HIERARCH ESO ISS AMBI TEMP 14.02
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.54