Exposure
ID
GRAVI.2025-05-27T05:04:59.869_1
Header ID
GRAVI.2025-05-27T05:04:59.869
Date updated
2025-05-27 05:15:55 UTC+0000
Release date
2026-05-27 05:15:54 UTC+0000
UTC Start
2025-05-27 05:04:59.869
UTC End
2025-05-27 05:07:39.869
MJD Start
60822.21180404
MJD End
60822.21365589186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0047834999999999996
Ambient temperature (°C)
10.89
Seeing (arcsec)
0.565
Observation
ID
67606
Category
science
Program ID
115.27VK.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
Target
ID
50278
Name
BD-194849
RA
271.882413
DEC
-19.294
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.8760 87.1620 109.7000 109.9000
A0-J2 121.5080 122.0370 85.6000 85.9000
A0-K0 120.0310 120.5060 62.3900 62.7530
G1-J2 55.1670 55.3280 45.6000 46.0000
G1-K0 88.4620 88.5270 16.1400 16.5300
J2-K0 48.6480 48.6460 342.3000 342.5520
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60822.21180404
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-19 4849
HIERARCH ESO INS SOBJ NAME BD-194849
RA 271.882413
DEC -19.294
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 86.876
HIERARCH ESO ISS PBL12 END 87.162
HIERARCH ESO ISS PBLA12 START 109.7
HIERARCH ESO ISS PBLA12 END 109.9
HIERARCH ESO ISS PBL13 START 121.508
HIERARCH ESO ISS PBL13 END 122.037
HIERARCH ESO ISS PBLA13 START 85.6
HIERARCH ESO ISS PBLA13 END 85.9
HIERARCH ESO ISS PBL14 START 120.031
HIERARCH ESO ISS PBL14 END 120.506
HIERARCH ESO ISS PBLA14 START 62.39
HIERARCH ESO ISS PBLA14 END 62.753
HIERARCH ESO ISS PBL23 START 55.167
HIERARCH ESO ISS PBL23 END 55.328
HIERARCH ESO ISS PBLA23 START 45.6
HIERARCH ESO ISS PBLA23 END 46.0
HIERARCH ESO ISS PBL24 START 88.462
HIERARCH ESO ISS PBL24 END 88.527
HIERARCH ESO ISS PBLA24 START 16.14
HIERARCH ESO ISS PBLA24 END 16.53
HIERARCH ESO ISS PBL34 START 48.648
HIERARCH ESO ISS PBL34 END 48.646
HIERARCH ESO ISS PBLA34 START 342.3
HIERARCH ESO ISS PBLA34 END 342.552
HIERARCH ESO ISS AMBI TAU0 START 0.005294
HIERARCH ESO ISS AMBI TAU0 END 0.004273
HIERARCH ESO ISS AMBI TEMP 10.89
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.57