Exposure
ID
GRAVI.2025-05-28T06:31:38.470_1
Header ID
GRAVI.2025-05-28T06:31:38.470
Date updated
2025-05-28 07:48:12 UTC+0000
Release date
2025-05-28 06:31:38 UTC+0000
UTC Start
2025-05-28 06:31:38.470
UTC End
2025-05-28 06:34:18.470
MJD Start
60823.27197303
MJD End
60823.27382488186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004135
Ambient temperature (°C)
12.84
Seeing (arcsec)
1.3599999999999999
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 90.4580 90.4200 115.4000 115.6000
A0-J2 129.2160 129.2340 92.4000 92.6000
A0-K0 127.7320 127.8160 70.7260 70.9470
G1-J2 57.9930 58.0430 54.8000 55.1000
G1-K0 89.8160 89.8730 25.6380 25.9210
J2-K0 48.3100 48.2980 349.8280 350.1190
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 60823.27197303
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 90.458
HIERARCH ESO ISS PBL12 END 90.42
HIERARCH ESO ISS PBLA12 START 115.4
HIERARCH ESO ISS PBLA12 END 115.6
HIERARCH ESO ISS PBL13 START 129.216
HIERARCH ESO ISS PBL13 END 129.234
HIERARCH ESO ISS PBLA13 START 92.4
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 127.732
HIERARCH ESO ISS PBL14 END 127.816
HIERARCH ESO ISS PBLA14 START 70.726
HIERARCH ESO ISS PBLA14 END 70.947
HIERARCH ESO ISS PBL23 START 57.993
HIERARCH ESO ISS PBL23 END 58.043
HIERARCH ESO ISS PBLA23 START 54.8
HIERARCH ESO ISS PBLA23 END 55.1
HIERARCH ESO ISS PBL24 START 89.816
HIERARCH ESO ISS PBL24 END 89.873
HIERARCH ESO ISS PBLA24 START 25.638
HIERARCH ESO ISS PBLA24 END 25.921
HIERARCH ESO ISS PBL34 START 48.31
HIERARCH ESO ISS PBL34 END 48.298
HIERARCH ESO ISS PBLA34 START 349.828
HIERARCH ESO ISS PBLA34 END 350.119
HIERARCH ESO ISS AMBI TAU0 START 0.004733
HIERARCH ESO ISS AMBI TAU0 END 0.003537
HIERARCH ESO ISS AMBI TEMP 12.84
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 1.58