Exposure
ID
GRAVI.2025-05-27T04:50:53.833_1
Header ID
GRAVI.2025-05-27T04:50:53.833
Date updated
2025-05-27 05:00:53 UTC+0000
Release date
2025-05-27 04:50:53 UTC+0000
UTC Start
2025-05-27 04:50:53.833
UTC End
2025-05-27 04:53:33.833
MJD Start
60822.20201196
MJD End
60822.203863811854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0035095
Ambient temperature (°C)
11.18
Seeing (arcsec)
0.675
Observation
ID
67605
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
50277
Name
HD_158619
RA
262.944603
DEC
-33.70334
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.8420 87.1000 107.7000 108.0000
A0-J2 125.5230 125.8460 83.8000 84.2000
A0-K0 126.3010 126.4930 62.0000 62.4580
G1-J2 57.9910 58.0310 46.5000 46.9000
G1-K0 90.3550 90.3380 18.5690 18.9490
J2-K0 47.5930 47.6230 343.8140 344.1020
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 60822.20201196
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 158619
HIERARCH ESO INS SOBJ NAME HD_158619
RA 262.944603
DEC -33.70334
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 86.842
HIERARCH ESO ISS PBL12 END 87.1
HIERARCH ESO ISS PBLA12 START 107.7
HIERARCH ESO ISS PBLA12 END 108.0
HIERARCH ESO ISS PBL13 START 125.523
HIERARCH ESO ISS PBL13 END 125.846
HIERARCH ESO ISS PBLA13 START 83.8
HIERARCH ESO ISS PBLA13 END 84.2
HIERARCH ESO ISS PBL14 START 126.301
HIERARCH ESO ISS PBL14 END 126.493
HIERARCH ESO ISS PBLA14 START 62.0
HIERARCH ESO ISS PBLA14 END 62.458
HIERARCH ESO ISS PBL23 START 57.991
HIERARCH ESO ISS PBL23 END 58.031
HIERARCH ESO ISS PBLA23 START 46.5
HIERARCH ESO ISS PBLA23 END 46.9
HIERARCH ESO ISS PBL24 START 90.355
HIERARCH ESO ISS PBL24 END 90.338
HIERARCH ESO ISS PBLA24 START 18.569
HIERARCH ESO ISS PBLA24 END 18.949
HIERARCH ESO ISS PBL34 START 47.593
HIERARCH ESO ISS PBL34 END 47.623
HIERARCH ESO ISS PBLA34 START 343.814
HIERARCH ESO ISS PBLA34 END 344.102
HIERARCH ESO ISS AMBI TAU0 START 0.004267
HIERARCH ESO ISS AMBI TAU0 END 0.002752
HIERARCH ESO ISS AMBI TEMP 11.18
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.74