Exposure
ID
GRAVI.2025-05-20T09:06:38.201_1
Header ID
GRAVI.2025-05-20T09:06:38.201
Date updated
2025-05-20 09:15:56 UTC+0000
Release date
2025-05-20 09:06:38 UTC+0000
UTC Start
2025-05-20 09:06:38.201
UTC End
2025-05-20 09:09:50.201
MJD Start
60815.37960881
MJD End
60815.381831032224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0101125
Ambient temperature (°C)
13.93
Seeing (arcsec)
0.38
Observation
ID
67463
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
50184
Name
HD_168592
RA
275.574242
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.2990 25.2980 157.9000 158.5000
A0-D0 28.6740 28.4920 88.5000 89.1000
A0-C1 22.1120 22.0680 134.0570 134.7480
B2-D0 30.8490 30.7370 38.4000 38.7000
B2-C1 10.2770 10.2400 38.3230 38.6400
D0-C1 20.5730 20.4980 218.3910 218.7080
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 60815.37960881
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574242
DEC -38.65706
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 25.299
HIERARCH ESO ISS PBL12 END 25.298
HIERARCH ESO ISS PBLA12 START 157.9
HIERARCH ESO ISS PBLA12 END 158.5
HIERARCH ESO ISS PBL13 START 28.674
HIERARCH ESO ISS PBL13 END 28.492
HIERARCH ESO ISS PBLA13 START 88.5
HIERARCH ESO ISS PBLA13 END 89.1
HIERARCH ESO ISS PBL14 START 22.112
HIERARCH ESO ISS PBL14 END 22.068
HIERARCH ESO ISS PBLA14 START 134.057
HIERARCH ESO ISS PBLA14 END 134.748
HIERARCH ESO ISS PBL23 START 30.849
HIERARCH ESO ISS PBL23 END 30.737
HIERARCH ESO ISS PBLA23 START 38.4
HIERARCH ESO ISS PBLA23 END 38.7
HIERARCH ESO ISS PBL24 START 10.277
HIERARCH ESO ISS PBL24 END 10.24
HIERARCH ESO ISS PBLA24 START 38.323
HIERARCH ESO ISS PBLA24 END 38.64
HIERARCH ESO ISS PBL34 START 20.573
HIERARCH ESO ISS PBL34 END 20.498
HIERARCH ESO ISS PBLA34 START 218.391
HIERARCH ESO ISS PBLA34 END 218.708
HIERARCH ESO ISS AMBI TAU0 START 0.0101
HIERARCH ESO ISS AMBI TAU0 END 0.010125
HIERARCH ESO ISS AMBI TEMP 13.93
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.36