Exposure
ID
GRAVI.2025-06-20T05:02:27.395_1
Header ID
GRAVI.2025-06-20T05:02:27.395
Date updated
2025-06-20 05:15:41 UTC+0000
Release date
2025-06-20 05:02:27 UTC+0000
UTC Start
2025-06-20 05:02:27.395
UTC End
2025-06-20 05:05:39.395
MJD Start
60846.21003929
MJD End
60846.21226151223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0036935
Ambient temperature (°C)
12.8
Seeing (arcsec)
0.78
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 68.3040 68.3290 270.2000 270.8000
K0-D0 95.8520 95.7870 250.2000 250.8000
K0-J3 55.0580 55.1360 331.1950 331.6270
G2-D0 39.3030 39.2500 213.9000 214.3000
G2-J3 63.6460 63.5560 41.0220 41.5090
D0-J3 102.7600 102.6160 38.2930 38.7710
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 60846.21003929
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 68.304
HIERARCH ESO ISS PBL12 END 68.329
HIERARCH ESO ISS PBLA12 START 270.2
HIERARCH ESO ISS PBLA12 END 270.8
HIERARCH ESO ISS PBL13 START 95.852
HIERARCH ESO ISS PBL13 END 95.787
HIERARCH ESO ISS PBLA13 START 250.2
HIERARCH ESO ISS PBLA13 END 250.8
HIERARCH ESO ISS PBL14 START 55.058
HIERARCH ESO ISS PBL14 END 55.136
HIERARCH ESO ISS PBLA14 START 331.195
HIERARCH ESO ISS PBLA14 END 331.627
HIERARCH ESO ISS PBL23 START 39.303
HIERARCH ESO ISS PBL23 END 39.25
HIERARCH ESO ISS PBLA23 START 213.9
HIERARCH ESO ISS PBLA23 END 214.3
HIERARCH ESO ISS PBL24 START 63.646
HIERARCH ESO ISS PBL24 END 63.556
HIERARCH ESO ISS PBLA24 START 41.022
HIERARCH ESO ISS PBLA24 END 41.509
HIERARCH ESO ISS PBL34 START 102.76
HIERARCH ESO ISS PBL34 END 102.616
HIERARCH ESO ISS PBLA34 START 38.293
HIERARCH ESO ISS PBLA34 END 38.771
HIERARCH ESO ISS AMBI TAU0 START 0.003182
HIERARCH ESO ISS AMBI TAU0 END 0.004205
HIERARCH ESO ISS AMBI TEMP 12.8
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.8