Exposure
ID
GRAVI.2025-05-20T04:36:44.182_1
Header ID
GRAVI.2025-05-20T04:36:44.182
Date updated
2025-05-20 04:45:53 UTC+0000
Release date
2025-05-20 04:36:44 UTC+0000
UTC Start
2025-05-20 04:36:44.182
UTC End
2025-05-20 04:39:56.182
MJD Start
60815.19217803
MJD End
60815.19440025223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0056845
Ambient temperature (°C)
14.09
Seeing (arcsec)
0.64
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 21.1320 21.2740 125.5000 125.8000
A0-D0 29.8130 29.9150 44.1000 44.9000
A0-C1 18.4110 18.5760 93.2400 93.7880
B2-D0 33.8580 33.8550 6.0000 6.5000
B2-C1 11.2780 11.2770 5.9450 6.4750
D0-C1 22.5800 22.5780 185.9960 186.5270
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 60815.19217803
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 21.132
HIERARCH ESO ISS PBL12 END 21.274
HIERARCH ESO ISS PBLA12 START 125.5
HIERARCH ESO ISS PBLA12 END 125.8
HIERARCH ESO ISS PBL13 START 29.813
HIERARCH ESO ISS PBL13 END 29.915
HIERARCH ESO ISS PBLA13 START 44.1
HIERARCH ESO ISS PBLA13 END 44.9
HIERARCH ESO ISS PBL14 START 18.411
HIERARCH ESO ISS PBL14 END 18.576
HIERARCH ESO ISS PBLA14 START 93.24
HIERARCH ESO ISS PBLA14 END 93.788
HIERARCH ESO ISS PBL23 START 33.858
HIERARCH ESO ISS PBL23 END 33.855
HIERARCH ESO ISS PBLA23 START 6.0
HIERARCH ESO ISS PBLA23 END 6.5
HIERARCH ESO ISS PBL24 START 11.278
HIERARCH ESO ISS PBL24 END 11.277
HIERARCH ESO ISS PBLA24 START 5.945
HIERARCH ESO ISS PBLA24 END 6.475
HIERARCH ESO ISS PBL34 START 22.58
HIERARCH ESO ISS PBL34 END 22.578
HIERARCH ESO ISS PBLA34 START 185.996
HIERARCH ESO ISS PBLA34 END 186.527
HIERARCH ESO ISS AMBI TAU0 START 0.007015
HIERARCH ESO ISS AMBI TAU0 END 0.004354
HIERARCH ESO ISS AMBI TEMP 14.09
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.61