Exposure
ID
GRAVI.2025-06-21T06:02:31.495_1
Header ID
GRAVI.2025-06-21T06:02:31.495
Date updated
2025-06-21 06:15:52 UTC+0000
Release date
2025-06-21 06:02:31 UTC+0000
UTC Start
2025-06-21 06:02:31.495
UTC End
2025-06-21 06:05:43.495
MJD Start
60847.25175342
MJD End
60847.25397564223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004680999999999999
Ambient temperature (°C)
12.52
Seeing (arcsec)
0.485
Observation
ID
68169
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
50674
Name
HD_168592
RA
275.577086
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 67.2240 67.0660 280.3000 280.9000
K0-D0 92.6960 92.3800 259.8000 260.3000
K0-J3 56.0170 56.0510 339.1200 339.6030
G2-D0 37.9700 37.8640 221.4000 221.8000
G2-J3 61.2670 61.0730 48.8990 49.3180
D0-J3 99.0350 98.7340 46.0190 46.4280
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 60847.25175342
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.577086
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 67.224
HIERARCH ESO ISS PBL12 END 67.066
HIERARCH ESO ISS PBLA12 START 280.3
HIERARCH ESO ISS PBLA12 END 280.9
HIERARCH ESO ISS PBL13 START 92.696
HIERARCH ESO ISS PBL13 END 92.38
HIERARCH ESO ISS PBLA13 START 259.8
HIERARCH ESO ISS PBLA13 END 260.3
HIERARCH ESO ISS PBL14 START 56.017
HIERARCH ESO ISS PBL14 END 56.051
HIERARCH ESO ISS PBLA14 START 339.12
HIERARCH ESO ISS PBLA14 END 339.603
HIERARCH ESO ISS PBL23 START 37.97
HIERARCH ESO ISS PBL23 END 37.864
HIERARCH ESO ISS PBLA23 START 221.4
HIERARCH ESO ISS PBLA23 END 221.8
HIERARCH ESO ISS PBL24 START 61.267
HIERARCH ESO ISS PBL24 END 61.073
HIERARCH ESO ISS PBLA24 START 48.899
HIERARCH ESO ISS PBLA24 END 49.318
HIERARCH ESO ISS PBL34 START 99.035
HIERARCH ESO ISS PBL34 END 98.734
HIERARCH ESO ISS PBLA34 START 46.019
HIERARCH ESO ISS PBLA34 END 46.428
HIERARCH ESO ISS AMBI TAU0 START 0.005071
HIERARCH ESO ISS AMBI TAU0 END 0.004291
HIERARCH ESO ISS AMBI TEMP 12.52
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.49