Exposure
ID
GRAVI.2025-04-06T08:26:42.427_1
Header ID
GRAVI.2025-04-06T08:26:42.427
Date updated
2025-04-06 08:40:42 UTC+0000
Release date
2025-04-06 08:26:42 UTC+0000
UTC Start
2025-04-06 08:26:42.427
UTC End
2025-04-06 08:29:54.427
MJD Start
60771.35187994
MJD End
60771.35410216222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0049465
Ambient temperature (°C)
13.14
Seeing (arcsec)
0.54
Observation
ID
66036
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
49157
Name
HD_168592
RA
275.574244
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 23.0110 23.1100 130.6000 131.0000
A0-D0 31.2070 31.2790 55.3000 55.9000
A0-C1 20.5910 20.7050 101.3680 101.8850
B2-D0 33.7620 33.7510 14.0000 14.5000
B2-C1 11.2460 11.2420 13.9640 14.4740
D0-C1 22.5160 22.5090 194.0220 194.5320
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 60771.35187994
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574244
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 23.011
HIERARCH ESO ISS PBL12 END 23.11
HIERARCH ESO ISS PBLA12 START 130.6
HIERARCH ESO ISS PBLA12 END 131.0
HIERARCH ESO ISS PBL13 START 31.207
HIERARCH ESO ISS PBL13 END 31.279
HIERARCH ESO ISS PBLA13 START 55.3
HIERARCH ESO ISS PBLA13 END 55.9
HIERARCH ESO ISS PBL14 START 20.591
HIERARCH ESO ISS PBL14 END 20.705
HIERARCH ESO ISS PBLA14 START 101.368
HIERARCH ESO ISS PBLA14 END 101.885
HIERARCH ESO ISS PBL23 START 33.762
HIERARCH ESO ISS PBL23 END 33.751
HIERARCH ESO ISS PBLA23 START 14.0
HIERARCH ESO ISS PBLA23 END 14.5
HIERARCH ESO ISS PBL24 START 11.246
HIERARCH ESO ISS PBL24 END 11.242
HIERARCH ESO ISS PBLA24 START 13.964
HIERARCH ESO ISS PBLA24 END 14.474
HIERARCH ESO ISS PBL34 START 22.516
HIERARCH ESO ISS PBL34 END 22.509
HIERARCH ESO ISS PBLA34 START 194.022
HIERARCH ESO ISS PBLA34 END 194.532
HIERARCH ESO ISS AMBI TAU0 START 0.004956
HIERARCH ESO ISS AMBI TAU0 END 0.004937
HIERARCH ESO ISS AMBI TEMP 13.14
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.56