Exposure
ID
GRAVI.2025-05-27T08:53:11.167_1
Header ID
GRAVI.2025-05-27T08:53:11.167
Date updated
2025-05-27 09:00:57 UTC+0000
Release date
2025-05-27 08:53:11 UTC+0000
UTC Start
2025-05-27 08:53:11.167
UTC End
2025-05-27 08:55:51.167
MJD Start
60822.37026814
MJD End
60822.37211999186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003388
Ambient temperature (°C)
11.44
Seeing (arcsec)
0.77
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 78.7010 78.2860 131.3000 131.8000
A0-J2 110.1600 109.3470 104.4000 104.7000
A0-K0 112.7530 112.0120 79.5000 79.6530
G1-J2 53.5450 53.2920 62.7000 62.8000
G1-K0 89.0850 88.9690 35.5180 35.6360
J2-K0 48.1390 48.1460 4.9660 5.2910
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 60822.37026814
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 78.701
HIERARCH ESO ISS PBL12 END 78.286
HIERARCH ESO ISS PBLA12 START 131.3
HIERARCH ESO ISS PBLA12 END 131.8
HIERARCH ESO ISS PBL13 START 110.16
HIERARCH ESO ISS PBL13 END 109.347
HIERARCH ESO ISS PBLA13 START 104.4
HIERARCH ESO ISS PBLA13 END 104.7
HIERARCH ESO ISS PBL14 START 112.753
HIERARCH ESO ISS PBL14 END 112.012
HIERARCH ESO ISS PBLA14 START 79.5
HIERARCH ESO ISS PBLA14 END 79.653
HIERARCH ESO ISS PBL23 START 53.545
HIERARCH ESO ISS PBL23 END 53.292
HIERARCH ESO ISS PBLA23 START 62.7
HIERARCH ESO ISS PBLA23 END 62.8
HIERARCH ESO ISS PBL24 START 89.085
HIERARCH ESO ISS PBL24 END 88.969
HIERARCH ESO ISS PBLA24 START 35.518
HIERARCH ESO ISS PBLA24 END 35.636
HIERARCH ESO ISS PBL34 START 48.139
HIERARCH ESO ISS PBL34 END 48.146
HIERARCH ESO ISS PBLA34 START 4.966
HIERARCH ESO ISS PBLA34 END 5.291
HIERARCH ESO ISS AMBI TAU0 START 0.003424
HIERARCH ESO ISS AMBI TAU0 END 0.003352
HIERARCH ESO ISS AMBI TEMP 11.44
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.76