Exposure
ID
GRAVI.2025-11-11T05:00:13.037_1
Header ID
GRAVI.2025-11-11T05:00:13.037
Date updated
2025-11-11 05:11:13 UTC+0000
Release date
2025-11-11 05:00:13 UTC+0000
UTC Start
2025-11-11 05:00:13.037
UTC End
2025-11-11 05:02:53.037
MJD Start
60990.20848423
MJD End
60990.21033608186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0039935
Ambient temperature (°C)
13.91
Seeing (arcsec)
0.565
Observation
ID
71454
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
53068
Name
BSD_47-534
RA
52.960343
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 38.5230 38.8200 41.4000 41.6000
U1-U3 74.6500 75.2180 48.6000 48.6000
U1-U4 120.1850 120.6930 71.6080 71.3120
U2-U3 36.7410 36.9970 56.1000 56.0000
U2-U4 89.0060 89.0940 84.1700 83.7980
U3-U4 59.1690 58.9530 101.1600 100.8220
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 60990.20848423
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME BSD 47-534
HIERARCH ESO INS SOBJ NAME BSD_47-534
RA 52.960343
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 38.523
HIERARCH ESO ISS PBL12 END 38.82
HIERARCH ESO ISS PBLA12 START 41.4
HIERARCH ESO ISS PBLA12 END 41.6
HIERARCH ESO ISS PBL13 START 74.65
HIERARCH ESO ISS PBL13 END 75.218
HIERARCH ESO ISS PBLA13 START 48.6
HIERARCH ESO ISS PBLA13 END 48.6
HIERARCH ESO ISS PBL14 START 120.185
HIERARCH ESO ISS PBL14 END 120.693
HIERARCH ESO ISS PBLA14 START 71.608
HIERARCH ESO ISS PBLA14 END 71.312
HIERARCH ESO ISS PBL23 START 36.741
HIERARCH ESO ISS PBL23 END 36.997
HIERARCH ESO ISS PBLA23 START 56.1
HIERARCH ESO ISS PBLA23 END 56.0
HIERARCH ESO ISS PBL24 START 89.006
HIERARCH ESO ISS PBL24 END 89.094
HIERARCH ESO ISS PBLA24 START 84.17
HIERARCH ESO ISS PBLA24 END 83.798
HIERARCH ESO ISS PBL34 START 59.169
HIERARCH ESO ISS PBL34 END 58.953
HIERARCH ESO ISS PBLA34 START 101.16
HIERARCH ESO ISS PBLA34 END 100.822
HIERARCH ESO ISS AMBI TAU0 START 0.004088
HIERARCH ESO ISS AMBI TAU0 END 0.003899
HIERARCH ESO ISS AMBI TEMP 13.91
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.59