Exposure
ID
GRAVI.2025-11-28T07:04:47.170_1
Header ID
GRAVI.2025-11-28T07:04:47.170
Date updated
2025-11-28 07:16:47 UTC+0000
Release date
2025-11-28 07:04:47 UTC+0000
UTC Start
2025-11-28 07:04:47.170
UTC End
2025-11-28 07:07:27.170
MJD Start
61007.29499039
MJD End
61007.296842241856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006258
Ambient temperature (°C)
14.45
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 41.6450 41.5050 154.3000 154.7000
A0-J2 124.4660 124.0070 91.8000 91.7000
A0-J6 161.8910 162.2430 32.8760 33.0270
B5-J2 111.5740 111.4480 72.4000 72.4000
B5-J6 187.0250 187.3910 21.9240 22.1590
J2-J6 144.4930 144.2160 345.3540 345.7380
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 61007.29499039
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 41.645
HIERARCH ESO ISS PBL12 END 41.505
HIERARCH ESO ISS PBLA12 START 154.3
HIERARCH ESO ISS PBLA12 END 154.7
HIERARCH ESO ISS PBL13 START 124.466
HIERARCH ESO ISS PBL13 END 124.007
HIERARCH ESO ISS PBLA13 START 91.8
HIERARCH ESO ISS PBLA13 END 91.7
HIERARCH ESO ISS PBL14 START 161.891
HIERARCH ESO ISS PBL14 END 162.243
HIERARCH ESO ISS PBLA14 START 32.876
HIERARCH ESO ISS PBLA14 END 33.027
HIERARCH ESO ISS PBL23 START 111.574
HIERARCH ESO ISS PBL23 END 111.448
HIERARCH ESO ISS PBLA23 START 72.4
HIERARCH ESO ISS PBLA23 END 72.4
HIERARCH ESO ISS PBL24 START 187.025
HIERARCH ESO ISS PBL24 END 187.391
HIERARCH ESO ISS PBLA24 START 21.924
HIERARCH ESO ISS PBLA24 END 22.159
HIERARCH ESO ISS PBL34 START 144.493
HIERARCH ESO ISS PBL34 END 144.216
HIERARCH ESO ISS PBLA34 START 345.354
HIERARCH ESO ISS PBLA34 END 345.738
HIERARCH ESO ISS AMBI TAU0 START 0.00633
HIERARCH ESO ISS AMBI TAU0 END 0.006186
HIERARCH ESO ISS AMBI TEMP 14.45
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59