Exposure
ID
GRAVI.2025-11-28T04:47:25.820_1
Header ID
GRAVI.2025-11-28T04:47:25.820
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 04:47:25.820
UTC End
2025-11-28 04:50:05.820
MJD Start
61007.1996044
MJD End
61007.20145625185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0045225000000000005
Ambient temperature (°C)
15.04
Seeing (arcsec)
0.5800000000000001
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 48.5870 48.5660 143.0000 143.1000
A0-J2 107.6970 108.6060 94.3000 94.2000
A0-J6 137.7490 137.9830 10.3400 10.8380
B5-J2 84.0140 84.8970 68.5000 68.7000
B5-J6 174.3930 174.3640 358.5270 358.9340
J2-J6 165.6770 165.4960 330.0730 330.1580
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 61007.1996044
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 48.587
HIERARCH ESO ISS PBL12 END 48.566
HIERARCH ESO ISS PBLA12 START 143.0
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 107.697
HIERARCH ESO ISS PBL13 END 108.606
HIERARCH ESO ISS PBLA13 START 94.3
HIERARCH ESO ISS PBLA13 END 94.2
HIERARCH ESO ISS PBL14 START 137.749
HIERARCH ESO ISS PBL14 END 137.983
HIERARCH ESO ISS PBLA14 START 10.34
HIERARCH ESO ISS PBLA14 END 10.838
HIERARCH ESO ISS PBL23 START 84.014
HIERARCH ESO ISS PBL23 END 84.897
HIERARCH ESO ISS PBLA23 START 68.5
HIERARCH ESO ISS PBLA23 END 68.7
HIERARCH ESO ISS PBL24 START 174.393
HIERARCH ESO ISS PBL24 END 174.364
HIERARCH ESO ISS PBLA24 START 358.527
HIERARCH ESO ISS PBLA24 END 358.934
HIERARCH ESO ISS PBL34 START 165.677
HIERARCH ESO ISS PBL34 END 165.496
HIERARCH ESO ISS PBLA34 START 330.073
HIERARCH ESO ISS PBLA34 END 330.158
HIERARCH ESO ISS AMBI TAU0 START 0.004634
HIERARCH ESO ISS AMBI TAU0 END 0.004411
HIERARCH ESO ISS AMBI TEMP 15.04
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.62