Exposure
ID
GRAVI.2025-08-24T04:16:51.506_1
Header ID
GRAVI.2025-08-24T04:16:51.506
Date updated
2025-08-24 04:30:55 UTC+0000
Release date
2025-08-24 04:16:51 UTC+0000
UTC Start
2025-08-24 04:16:51.506
UTC End
2025-08-24 04:19:31.506
MJD Start
60911.17837391
MJD End
60911.180225761855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003567
Ambient temperature (°C)
4.42
Seeing (arcsec)
0.8049999999999999
Observation
ID
70097
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
52010
Name
HD_168000
RA
274.599344
DEC
-17.53439
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 45.8920 45.8910 179.4000 179.9000
A0-J2 86.3080 85.2330 115.0000 115.5000
A0-J6 158.8700 158.4210 37.2130 37.2230
B5-J2 78.3460 77.3620 83.1000 83.2000
B5-J6 197.1530 196.8900 29.0110 29.0960
J2-J6 163.9440 163.9940 6.2430 6.6220
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 60911.17837391
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.599344
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 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 45.892
HIERARCH ESO ISS PBL12 END 45.891
HIERARCH ESO ISS PBLA12 START 179.4
HIERARCH ESO ISS PBLA12 END 179.9
HIERARCH ESO ISS PBL13 START 86.308
HIERARCH ESO ISS PBL13 END 85.233
HIERARCH ESO ISS PBLA13 START 115.0
HIERARCH ESO ISS PBLA13 END 115.5
HIERARCH ESO ISS PBL14 START 158.87
HIERARCH ESO ISS PBL14 END 158.421
HIERARCH ESO ISS PBLA14 START 37.213
HIERARCH ESO ISS PBLA14 END 37.223
HIERARCH ESO ISS PBL23 START 78.346
HIERARCH ESO ISS PBL23 END 77.362
HIERARCH ESO ISS PBLA23 START 83.1
HIERARCH ESO ISS PBLA23 END 83.2
HIERARCH ESO ISS PBL24 START 197.153
HIERARCH ESO ISS PBL24 END 196.89
HIERARCH ESO ISS PBLA24 START 29.011
HIERARCH ESO ISS PBLA24 END 29.096
HIERARCH ESO ISS PBL34 START 163.944
HIERARCH ESO ISS PBL34 END 163.994
HIERARCH ESO ISS PBLA34 START 6.243
HIERARCH ESO ISS PBLA34 END 6.622
HIERARCH ESO ISS AMBI TAU0 START 0.004027
HIERARCH ESO ISS AMBI TAU0 END 0.003107
HIERARCH ESO ISS AMBI TEMP 4.42
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.87