Exposure
ID
GRAVI.2025-08-24T03:14:57.349_1
Header ID
GRAVI.2025-08-24T03:14:57.349
Date updated
2025-08-24 03:25:57 UTC+0000
Release date
2025-08-24 03:14:57 UTC+0000
UTC Start
2025-08-24 03:14:57.349
UTC End
2025-08-24 03:17:37.349
MJD Start
60911.13538598
MJD End
60911.137237831856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0018985
Ambient temperature (°C)
4.29
Seeing (arcsec)
0.81
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 48.5850 48.5840 177.1000 177.5000
A0-J2 103.3630 102.6730 124.6000 125.3000
A0-J6 145.6490 145.0170 41.8280 41.9640
B5-J2 83.2280 82.4220 97.0000 97.5000
B5-J6 183.3850 182.9100 31.0820 31.2500
J2-J6 167.7020 167.6940 4.1260 4.5030
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 60911.13538598
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 48.585
HIERARCH ESO ISS PBL12 END 48.584
HIERARCH ESO ISS PBLA12 START 177.1
HIERARCH ESO ISS PBLA12 END 177.5
HIERARCH ESO ISS PBL13 START 103.363
HIERARCH ESO ISS PBL13 END 102.673
HIERARCH ESO ISS PBLA13 START 124.6
HIERARCH ESO ISS PBLA13 END 125.3
HIERARCH ESO ISS PBL14 START 145.649
HIERARCH ESO ISS PBL14 END 145.017
HIERARCH ESO ISS PBLA14 START 41.828
HIERARCH ESO ISS PBLA14 END 41.964
HIERARCH ESO ISS PBL23 START 83.228
HIERARCH ESO ISS PBL23 END 82.422
HIERARCH ESO ISS PBLA23 START 97.0
HIERARCH ESO ISS PBLA23 END 97.5
HIERARCH ESO ISS PBL24 START 183.385
HIERARCH ESO ISS PBL24 END 182.91
HIERARCH ESO ISS PBLA24 START 31.082
HIERARCH ESO ISS PBLA24 END 31.25
HIERARCH ESO ISS PBL34 START 167.702
HIERARCH ESO ISS PBL34 END 167.694
HIERARCH ESO ISS PBLA34 START 4.126
HIERARCH ESO ISS PBLA34 END 4.503
HIERARCH ESO ISS AMBI TAU0 START 0.001544
HIERARCH ESO ISS AMBI TAU0 END 0.002253
HIERARCH ESO ISS AMBI TEMP 4.29
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.75