Exposure
ID
GRAVI.2025-06-24T05:38:31.236_1
Header ID
GRAVI.2025-06-24T05:38:31.236
Date updated
2025-06-24 05:51:08 UTC+0000
Release date
2025-06-24 05:38:31 UTC+0000
UTC Start
2025-06-24 05:38:31.236
UTC End
2025-06-24 05:41:43.236
MJD Start
60850.23508375
MJD End
60850.23730597222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.004626
Ambient temperature (°C)
11.11
Seeing (arcsec)
0.52
Observation
ID
68226
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
50709
Name
HD_168592
RA
275.57424
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 25.1520 25.1700 147.5000 148.0000
A0-D0 31.2220 31.1330 78.0000 78.5000
A0-C1 22.6170 22.6110 121.9570 122.5560
B2-D0 32.5040 32.4380 31.6000 32.0000
B2-C1 10.8270 10.8050 31.5110 31.9120
D0-C1 21.6760 21.6330 211.5770 211.9790
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 60850.23508375
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.57424
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 25.152
HIERARCH ESO ISS PBL12 END 25.17
HIERARCH ESO ISS PBLA12 START 147.5
HIERARCH ESO ISS PBLA12 END 148.0
HIERARCH ESO ISS PBL13 START 31.222
HIERARCH ESO ISS PBL13 END 31.133
HIERARCH ESO ISS PBLA13 START 78.0
HIERARCH ESO ISS PBLA13 END 78.5
HIERARCH ESO ISS PBL14 START 22.617
HIERARCH ESO ISS PBL14 END 22.611
HIERARCH ESO ISS PBLA14 START 121.957
HIERARCH ESO ISS PBLA14 END 122.556
HIERARCH ESO ISS PBL23 START 32.504
HIERARCH ESO ISS PBL23 END 32.438
HIERARCH ESO ISS PBLA23 START 31.6
HIERARCH ESO ISS PBLA23 END 32.0
HIERARCH ESO ISS PBL24 START 10.827
HIERARCH ESO ISS PBL24 END 10.805
HIERARCH ESO ISS PBLA24 START 31.511
HIERARCH ESO ISS PBLA24 END 31.912
HIERARCH ESO ISS PBL34 START 21.676
HIERARCH ESO ISS PBL34 END 21.633
HIERARCH ESO ISS PBLA34 START 211.577
HIERARCH ESO ISS PBLA34 END 211.979
HIERARCH ESO ISS AMBI TAU0 START 0.004447
HIERARCH ESO ISS AMBI TAU0 END 0.004805
HIERARCH ESO ISS AMBI TEMP 11.11
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.52