Exposure
ID
GRAVI.2025-04-30T08:52:23.005_1
Header ID
GRAVI.2025-04-30T08:52:23.005
Date updated
2025-04-30 09:05:33 UTC+0000
Release date
2026-04-30 09:05:33 UTC+0000
UTC Start
2025-04-30 08:52:23.005
UTC End
2025-04-30 08:55:03.005
MJD Start
60795.36971071
MJD End
60795.37156256186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.00515
Ambient temperature (°C)
11.69
Seeing (arcsec)
0.64
Observation
ID
67067
Category
science
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
49867
Name
HD_319775
RA
260.497489
DEC
-37.52106
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 48.4880 48.5010 161.3000 161.7000
A0-J2 124.6870 124.3470 105.5000 106.0000
A0-J6 159.5760 159.2320 35.1620 35.4350
B5-J2 105.3290 104.9370 83.2000 83.6000
B5-J6 192.2040 191.9490 23.4070 23.6800
J2-J6 166.2850 166.3260 350.2250 350.5900
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60795.36971071
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 319775
HIERARCH ESO INS SOBJ NAME HD_319775
RA 260.497489
DEC -37.52106
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 48.488
HIERARCH ESO ISS PBL12 END 48.501
HIERARCH ESO ISS PBLA12 START 161.3
HIERARCH ESO ISS PBLA12 END 161.7
HIERARCH ESO ISS PBL13 START 124.687
HIERARCH ESO ISS PBL13 END 124.347
HIERARCH ESO ISS PBLA13 START 105.5
HIERARCH ESO ISS PBLA13 END 106.0
HIERARCH ESO ISS PBL14 START 159.576
HIERARCH ESO ISS PBL14 END 159.232
HIERARCH ESO ISS PBLA14 START 35.162
HIERARCH ESO ISS PBLA14 END 35.435
HIERARCH ESO ISS PBL23 START 105.329
HIERARCH ESO ISS PBL23 END 104.937
HIERARCH ESO ISS PBLA23 START 83.2
HIERARCH ESO ISS PBLA23 END 83.6
HIERARCH ESO ISS PBL24 START 192.204
HIERARCH ESO ISS PBL24 END 191.949
HIERARCH ESO ISS PBLA24 START 23.407
HIERARCH ESO ISS PBLA24 END 23.68
HIERARCH ESO ISS PBL34 START 166.285
HIERARCH ESO ISS PBL34 END 166.326
HIERARCH ESO ISS PBLA34 START 350.225
HIERARCH ESO ISS PBLA34 END 350.59
HIERARCH ESO ISS AMBI TAU0 START 0.00515
HIERARCH ESO ISS AMBI TAU0 END 0.00515
HIERARCH ESO ISS AMBI TEMP 11.69
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64