Exposure
ID
GRAVI.2025-11-28T04:50:40.828_1
Header ID
GRAVI.2025-11-28T04:50:40.828
Date updated
2025-11-28 05:01:00 UTC+0000
Release date
2026-11-28 05:01:00 UTC+0000
UTC Start
2025-11-28 04:50:40.828
UTC End
2025-11-28 04:53:20.828
MJD Start
61007.20186144
MJD End
61007.203713291856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004165
Ambient temperature (°C)
15.0
Seeing (arcsec)
0.6
Observation
ID
71885
Category
science
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
53366
Name
HD_289261
RA
103.362768
DEC
1.87316
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 48.5630 48.5380 143.1000 143.1000
A0-J2 108.6980 109.5930 94.2000 94.2000
A0-J6 138.0070 138.2540 10.8880 11.3850
B5-J2 84.9910 85.8620 68.8000 69.0000
B5-J6 174.3620 174.3430 358.9780 359.3850
J2-J6 165.4760 165.2880 330.1670 330.2580
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28P0.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 61007.20186144
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 289261
HIERARCH ESO INS SOBJ NAME HD_289261
RA 103.362768
DEC 1.87316
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 48.563
HIERARCH ESO ISS PBL12 END 48.538
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 108.698
HIERARCH ESO ISS PBL13 END 109.593
HIERARCH ESO ISS PBLA13 START 94.2
HIERARCH ESO ISS PBLA13 END 94.2
HIERARCH ESO ISS PBL14 START 138.007
HIERARCH ESO ISS PBL14 END 138.254
HIERARCH ESO ISS PBLA14 START 10.888
HIERARCH ESO ISS PBLA14 END 11.385
HIERARCH ESO ISS PBL23 START 84.991
HIERARCH ESO ISS PBL23 END 85.862
HIERARCH ESO ISS PBLA23 START 68.8
HIERARCH ESO ISS PBLA23 END 69.0
HIERARCH ESO ISS PBL24 START 174.362
HIERARCH ESO ISS PBL24 END 174.343
HIERARCH ESO ISS PBLA24 START 358.978
HIERARCH ESO ISS PBLA24 END 359.385
HIERARCH ESO ISS PBL34 START 165.476
HIERARCH ESO ISS PBL34 END 165.288
HIERARCH ESO ISS PBLA34 START 330.167
HIERARCH ESO ISS PBLA34 END 330.258
HIERARCH ESO ISS AMBI TAU0 START 0.004411
HIERARCH ESO ISS AMBI TAU0 END 0.003919
HIERARCH ESO ISS AMBI TEMP 15.0
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.58