Exposure
ID
GRAVI.2025-08-28T00:57:06.193_1
Header ID
GRAVI.2025-08-28T00:57:06.193
Date updated
2025-08-28 01:10:56 UTC+0000
Release date
2025-08-28 00:57:06 UTC+0000
UTC Start
2025-08-28 00:57:06.193
UTC End
2025-08-28 00:59:46.193
MJD Start
60915.03965501
MJD End
60915.04150686185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002795
Ambient temperature (°C)
12.5
Seeing (arcsec)
1.225
Observation
ID
70095
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
52008
Name
HD_158619
RA
262.945934
DEC
-33.70334
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.6250 48.6310 159.6000 160.0000
A0-J2 125.6330 125.3070 102.5000 102.9000
A0-J6 163.7460 163.4790 33.2490 33.5200
B5-J2 107.2980 106.9510 80.1000 80.5000
B5-J6 196.5070 196.3190 21.7520 22.0290
J2-J6 167.3670 167.3960 348.6680 349.0300
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 60915.03965501
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 158619
HIERARCH ESO INS SOBJ NAME HD_158619
RA 262.945934
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 48.625
HIERARCH ESO ISS PBL12 END 48.631
HIERARCH ESO ISS PBLA12 START 159.6
HIERARCH ESO ISS PBLA12 END 160.0
HIERARCH ESO ISS PBL13 START 125.633
HIERARCH ESO ISS PBL13 END 125.307
HIERARCH ESO ISS PBLA13 START 102.5
HIERARCH ESO ISS PBLA13 END 102.9
HIERARCH ESO ISS PBL14 START 163.746
HIERARCH ESO ISS PBL14 END 163.479
HIERARCH ESO ISS PBLA14 START 33.249
HIERARCH ESO ISS PBLA14 END 33.52
HIERARCH ESO ISS PBL23 START 107.298
HIERARCH ESO ISS PBL23 END 106.951
HIERARCH ESO ISS PBLA23 START 80.1
HIERARCH ESO ISS PBLA23 END 80.5
HIERARCH ESO ISS PBL24 START 196.507
HIERARCH ESO ISS PBL24 END 196.319
HIERARCH ESO ISS PBLA24 START 21.752
HIERARCH ESO ISS PBLA24 END 22.029
HIERARCH ESO ISS PBL34 START 167.367
HIERARCH ESO ISS PBL34 END 167.396
HIERARCH ESO ISS PBLA34 START 348.668
HIERARCH ESO ISS PBLA34 END 349.03
HIERARCH ESO ISS AMBI TAU0 START 0.002795
HIERARCH ESO ISS AMBI TAU0 END 0.002795
HIERARCH ESO ISS AMBI TEMP 12.5
HIERARCH ESO ISS AMBI FWHM START 1.28
HIERARCH ESO ISS AMBI FWHM END 1.17