Exposure
ID
GRAVI.2025-08-28T00:50:21.176_1
Header ID
GRAVI.2025-08-28T00:50:21.176
Date updated
2025-08-28 01:01:14 UTC+0000
Release date
2025-08-28 00:50:21 UTC+0000
UTC Start
2025-08-28 00:50:21.176
UTC End
2025-08-28 00:53:01.176
MJD Start
60915.03496731
MJD End
60915.036819161855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002655
Ambient temperature (°C)
12.57
Seeing (arcsec)
1.19
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 48.6080 48.6160 158.7000 159.1000
A0-J2 126.3230 126.0300 101.5000 101.9000
A0-J6 164.3250 164.0760 32.6240 32.9070
B5-J2 108.0400 107.7230 79.3000 79.6000
B5-J6 196.9130 196.7390 21.1170 21.4040
J2-J6 167.2940 167.3270 347.8510 348.2160
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 60915.03496731
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 48.608
HIERARCH ESO ISS PBL12 END 48.616
HIERARCH ESO ISS PBLA12 START 158.7
HIERARCH ESO ISS PBLA12 END 159.1
HIERARCH ESO ISS PBL13 START 126.323
HIERARCH ESO ISS PBL13 END 126.03
HIERARCH ESO ISS PBLA13 START 101.5
HIERARCH ESO ISS PBLA13 END 101.9
HIERARCH ESO ISS PBL14 START 164.325
HIERARCH ESO ISS PBL14 END 164.076
HIERARCH ESO ISS PBLA14 START 32.624
HIERARCH ESO ISS PBLA14 END 32.907
HIERARCH ESO ISS PBL23 START 108.04
HIERARCH ESO ISS PBL23 END 107.723
HIERARCH ESO ISS PBLA23 START 79.3
HIERARCH ESO ISS PBLA23 END 79.6
HIERARCH ESO ISS PBL24 START 196.913
HIERARCH ESO ISS PBL24 END 196.739
HIERARCH ESO ISS PBLA24 START 21.117
HIERARCH ESO ISS PBLA24 END 21.404
HIERARCH ESO ISS PBL34 START 167.294
HIERARCH ESO ISS PBL34 END 167.327
HIERARCH ESO ISS PBLA34 START 347.851
HIERARCH ESO ISS PBLA34 END 348.216
HIERARCH ESO ISS AMBI TAU0 START 0.002655
HIERARCH ESO ISS AMBI TAU0 END 0.002655
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 1.19
HIERARCH ESO ISS AMBI FWHM END 1.19