Exposure
ID
GRAVI.2025-11-28T07:01:32.161_1
Header ID
GRAVI.2025-11-28T07:01:32.161
Date updated
2025-11-28 07:16:47 UTC+0000
Release date
2025-11-28 07:01:32 UTC+0000
UTC Start
2025-11-28 07:01:32.161
UTC End
2025-11-28 07:04:12.161
MJD Start
61007.29273335
MJD End
61007.29458520185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0076125
Ambient temperature (°C)
14.49
Seeing (arcsec)
0.59
Observation
ID
71884
Category
calibrator
Program ID
116.28P0.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: THE VARIABILITY ACROSS THE MOLECULAR LAYERS AND THE PHOTOSPHERE
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / GONZÁLEZ-TORÀ / KRTICKA / PALADINI / HÖFNER / FREYTAG / ERCOLINO / JANIK
Target
ID
53365
Name
HD_39685
RA
88.564905
DEC
3.22534
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 41.8010 41.6610 153.9000 154.3000
A0-J2 124.9490 124.5140 91.8000 91.8000
A0-J6 161.4930 161.8530 32.7030 32.8600
B5-J2 111.6950 111.5870 72.5000 72.4000
B5-J6 186.6200 186.9860 21.6600 21.8990
J2-J6 144.8050 144.5230 344.9340 345.3130
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 61007.29273335
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 39685
HIERARCH ESO INS SOBJ NAME HD_39685
RA 88.564905
DEC 3.22534
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 41.801
HIERARCH ESO ISS PBL12 END 41.661
HIERARCH ESO ISS PBLA12 START 153.9
HIERARCH ESO ISS PBLA12 END 154.3
HIERARCH ESO ISS PBL13 START 124.949
HIERARCH ESO ISS PBL13 END 124.514
HIERARCH ESO ISS PBLA13 START 91.8
HIERARCH ESO ISS PBLA13 END 91.8
HIERARCH ESO ISS PBL14 START 161.493
HIERARCH ESO ISS PBL14 END 161.853
HIERARCH ESO ISS PBLA14 START 32.703
HIERARCH ESO ISS PBLA14 END 32.86
HIERARCH ESO ISS PBL23 START 111.695
HIERARCH ESO ISS PBL23 END 111.587
HIERARCH ESO ISS PBLA23 START 72.5
HIERARCH ESO ISS PBLA23 END 72.4
HIERARCH ESO ISS PBL24 START 186.62
HIERARCH ESO ISS PBL24 END 186.986
HIERARCH ESO ISS PBLA24 START 21.66
HIERARCH ESO ISS PBLA24 END 21.899
HIERARCH ESO ISS PBL34 START 144.805
HIERARCH ESO ISS PBL34 END 144.523
HIERARCH ESO ISS PBLA34 START 344.934
HIERARCH ESO ISS PBLA34 END 345.313
HIERARCH ESO ISS AMBI TAU0 START 0.00759
HIERARCH ESO ISS AMBI TAU0 END 0.007635
HIERARCH ESO ISS AMBI TEMP 14.49
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59