Exposure
ID
GRAVI.2025-05-27T08:43:08.141_1
Header ID
GRAVI.2025-05-27T08:43:08.141
Date updated
2025-05-27 08:56:09 UTC+0000
Release date
2025-05-27 08:43:08 UTC+0000
UTC Start
2025-05-27 08:43:08.141
UTC End
2025-05-27 08:45:48.141
MJD Start
60822.36328867
MJD End
60822.365140521855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003137
Ambient temperature (°C)
11.36
Seeing (arcsec)
0.73
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 80.0900 79.6890 129.7000 130.2000
A0-J2 112.8260 112.0640 103.3000 103.6000
A0-K0 115.1580 114.4750 78.9690 79.1260
G1-J2 54.3620 54.1310 62.4000 62.5000
G1-K0 89.4440 89.3450 35.0820 35.2140
J2-K0 48.1160 48.1220 3.8510 4.1780
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 60822.36328867
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 80.09
HIERARCH ESO ISS PBL12 END 79.689
HIERARCH ESO ISS PBLA12 START 129.7
HIERARCH ESO ISS PBLA12 END 130.2
HIERARCH ESO ISS PBL13 START 112.826
HIERARCH ESO ISS PBL13 END 112.064
HIERARCH ESO ISS PBLA13 START 103.3
HIERARCH ESO ISS PBLA13 END 103.6
HIERARCH ESO ISS PBL14 START 115.158
HIERARCH ESO ISS PBL14 END 114.475
HIERARCH ESO ISS PBLA14 START 78.969
HIERARCH ESO ISS PBLA14 END 79.126
HIERARCH ESO ISS PBL23 START 54.362
HIERARCH ESO ISS PBL23 END 54.131
HIERARCH ESO ISS PBLA23 START 62.4
HIERARCH ESO ISS PBLA23 END 62.5
HIERARCH ESO ISS PBL24 START 89.444
HIERARCH ESO ISS PBL24 END 89.345
HIERARCH ESO ISS PBLA24 START 35.082
HIERARCH ESO ISS PBLA24 END 35.214
HIERARCH ESO ISS PBL34 START 48.116
HIERARCH ESO ISS PBL34 END 48.122
HIERARCH ESO ISS PBLA34 START 3.851
HIERARCH ESO ISS PBLA34 END 4.178
HIERARCH ESO ISS AMBI TAU0 START 0.003091
HIERARCH ESO ISS AMBI TAU0 END 0.003183
HIERARCH ESO ISS AMBI TEMP 11.36
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.74