Exposure
ID
GRAVI.2025-11-28T04:57:22.845_1
Header ID
GRAVI.2025-11-28T04:57:22.845
Date updated
2025-11-28 05:10:59 UTC+0000
Release date
2026-11-28 05:10:59 UTC+0000
UTC Start
2025-11-28 04:57:22.845
UTC End
2025-11-28 05:00:02.845
MJD Start
61007.20651441
MJD End
61007.20836626185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0035645
Ambient temperature (°C)
14.98
Seeing (arcsec)
0.7
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 48.5030 48.4710 143.1000 143.1000
A0-J2 110.6890 111.5380 94.1000 94.1000
A0-J6 138.5780 138.8450 12.0020 12.4870
B5-J2 86.9430 87.7890 69.2000 69.4000
B5-J6 174.3330 174.3350 359.8990 0.3070
J2-J6 165.0420 164.8390 330.3770 330.4780
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 61007.20651441
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 48.503
HIERARCH ESO ISS PBL12 END 48.471
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 110.689
HIERARCH ESO ISS PBL13 END 111.538
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 138.578
HIERARCH ESO ISS PBL14 END 138.845
HIERARCH ESO ISS PBLA14 START 12.002
HIERARCH ESO ISS PBLA14 END 12.487
HIERARCH ESO ISS PBL23 START 86.943
HIERARCH ESO ISS PBL23 END 87.789
HIERARCH ESO ISS PBLA23 START 69.2
HIERARCH ESO ISS PBLA23 END 69.4
HIERARCH ESO ISS PBL24 START 174.333
HIERARCH ESO ISS PBL24 END 174.335
HIERARCH ESO ISS PBLA24 START 359.899
HIERARCH ESO ISS PBLA24 END 0.307
HIERARCH ESO ISS PBL34 START 165.042
HIERARCH ESO ISS PBL34 END 164.839
HIERARCH ESO ISS PBLA34 START 330.377
HIERARCH ESO ISS PBLA34 END 330.478
HIERARCH ESO ISS AMBI TAU0 START 0.003419
HIERARCH ESO ISS AMBI TAU0 END 0.00371
HIERARCH ESO ISS AMBI TEMP 14.98
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.77