Exposure
ID
GRAVI.2025-05-27T08:49:53.158_1
Header ID
GRAVI.2025-05-27T08:49:53.158
Date updated
2025-05-27 09:00:57 UTC+0000
Release date
2025-05-27 08:49:53 UTC+0000
UTC Start
2025-05-27 08:49:53.158
UTC End
2025-05-27 08:52:33.158
MJD Start
60822.36797637
MJD End
60822.369828221854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003475
Ambient temperature (°C)
11.41
Seeing (arcsec)
0.715
Observation
ID
67033
Category
calibrator
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
49841
Name
HD_168000
RA
274.598179
DEC
-17.53439
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 79.1610 78.7480 130.8000 131.3000
A0-J2 111.0520 110.2510 104.0000 104.4000
A0-K0 113.5620 112.8360 79.3280 79.4830
G1-J2 53.8210 53.5740 62.6000 62.7000
G1-K0 89.2090 89.0980 35.3800 35.5040
J2-K0 48.1310 48.1380 4.6020 4.9300
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60822.36797637
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.598179
DEC -17.53439
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 79.161
HIERARCH ESO ISS PBL12 END 78.748
HIERARCH ESO ISS PBLA12 START 130.8
HIERARCH ESO ISS PBLA12 END 131.3
HIERARCH ESO ISS PBL13 START 111.052
HIERARCH ESO ISS PBL13 END 110.251
HIERARCH ESO ISS PBLA13 START 104.0
HIERARCH ESO ISS PBLA13 END 104.4
HIERARCH ESO ISS PBL14 START 113.562
HIERARCH ESO ISS PBL14 END 112.836
HIERARCH ESO ISS PBLA14 START 79.328
HIERARCH ESO ISS PBLA14 END 79.483
HIERARCH ESO ISS PBL23 START 53.821
HIERARCH ESO ISS PBL23 END 53.574
HIERARCH ESO ISS PBLA23 START 62.6
HIERARCH ESO ISS PBLA23 END 62.7
HIERARCH ESO ISS PBL24 START 89.209
HIERARCH ESO ISS PBL24 END 89.098
HIERARCH ESO ISS PBLA24 START 35.38
HIERARCH ESO ISS PBLA24 END 35.504
HIERARCH ESO ISS PBL34 START 48.131
HIERARCH ESO ISS PBL34 END 48.138
HIERARCH ESO ISS PBLA34 START 4.602
HIERARCH ESO ISS PBLA34 END 4.93
HIERARCH ESO ISS AMBI TAU0 START 0.003526
HIERARCH ESO ISS AMBI TAU0 END 0.003424
HIERARCH ESO ISS AMBI TEMP 11.41
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.72