Exposure
ID
GRAVI.2025-11-11T04:50:40.014_1
Header ID
GRAVI.2025-11-11T04:50:40.014
Date updated
2025-11-11 05:00:51 UTC+0000
Release date
2025-11-11 04:50:40 UTC+0000
UTC Start
2025-11-11 04:50:40.014
UTC End
2025-11-11 04:53:20.014
MJD Start
60990.20185201
MJD End
60990.20370386186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005121
Ambient temperature (°C)
14.08
Seeing (arcsec)
0.56
Observation
ID
71451
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
53065
Name
BSD_47-534
RA
52.960342
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 37.5410 37.8410 41.0000 41.1000
U1-U3 72.7510 73.3340 48.5000 48.6000
U1-U4 118.4190 118.9710 72.5770 72.2830
U2-U3 35.8740 36.1410 56.4000 56.3000
U2-U4 88.6420 88.7640 85.3900 85.0190
U3-U4 59.8320 59.6380 102.2700 101.9310
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 60990.20185201
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME BSD 47-534
HIERARCH ESO INS SOBJ NAME BSD_47-534
RA 52.960342
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 37.541
HIERARCH ESO ISS PBL12 END 37.841
HIERARCH ESO ISS PBLA12 START 41.0
HIERARCH ESO ISS PBLA12 END 41.1
HIERARCH ESO ISS PBL13 START 72.751
HIERARCH ESO ISS PBL13 END 73.334
HIERARCH ESO ISS PBLA13 START 48.5
HIERARCH ESO ISS PBLA13 END 48.6
HIERARCH ESO ISS PBL14 START 118.419
HIERARCH ESO ISS PBL14 END 118.971
HIERARCH ESO ISS PBLA14 START 72.577
HIERARCH ESO ISS PBLA14 END 72.283
HIERARCH ESO ISS PBL23 START 35.874
HIERARCH ESO ISS PBL23 END 36.141
HIERARCH ESO ISS PBLA23 START 56.4
HIERARCH ESO ISS PBLA23 END 56.3
HIERARCH ESO ISS PBL24 START 88.642
HIERARCH ESO ISS PBL24 END 88.764
HIERARCH ESO ISS PBLA24 START 85.39
HIERARCH ESO ISS PBLA24 END 85.019
HIERARCH ESO ISS PBL34 START 59.832
HIERARCH ESO ISS PBL34 END 59.638
HIERARCH ESO ISS PBLA34 START 102.27
HIERARCH ESO ISS PBLA34 END 101.931
HIERARCH ESO ISS AMBI TAU0 START 0.005409
HIERARCH ESO ISS AMBI TAU0 END 0.004833
HIERARCH ESO ISS AMBI TEMP 14.08
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.58