Exposure
ID
GRAVI.2025-05-27T04:02:32.710_1
Header ID
GRAVI.2025-05-27T04:02:32.710
Date updated
2025-05-27 04:11:01 UTC+0000
Release date
2026-05-27 04:11:00 UTC+0000
UTC Start
2025-05-27 04:02:32.710
UTC End
2025-05-27 04:05:12.710
MJD Start
60822.16843414
MJD End
60822.17028599186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002619
Ambient temperature (°C)
12.41
Seeing (arcsec)
0.675
Observation
ID
67604
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
50276
Name
HD_319775
RA
260.496087
DEC
-37.52106
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 82.0730 82.4540 101.4000 101.8000
A0-J2 120.7570 121.2120 76.5000 77.0000
A0-K0 124.1770 124.4340 54.8270 55.3630
G1-J2 57.6930 57.7440 39.9000 40.4000
G1-K0 90.1990 90.1810 13.4930 13.9000
J2-K0 46.2580 46.3110 339.8520 340.1260
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 60822.16843414
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 319775
HIERARCH ESO INS SOBJ NAME HD_319775
RA 260.496087
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 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 82.073
HIERARCH ESO ISS PBL12 END 82.454
HIERARCH ESO ISS PBLA12 START 101.4
HIERARCH ESO ISS PBLA12 END 101.8
HIERARCH ESO ISS PBL13 START 120.757
HIERARCH ESO ISS PBL13 END 121.212
HIERARCH ESO ISS PBLA13 START 76.5
HIERARCH ESO ISS PBLA13 END 77.0
HIERARCH ESO ISS PBL14 START 124.177
HIERARCH ESO ISS PBL14 END 124.434
HIERARCH ESO ISS PBLA14 START 54.827
HIERARCH ESO ISS PBLA14 END 55.363
HIERARCH ESO ISS PBL23 START 57.693
HIERARCH ESO ISS PBL23 END 57.744
HIERARCH ESO ISS PBLA23 START 39.9
HIERARCH ESO ISS PBLA23 END 40.4
HIERARCH ESO ISS PBL24 START 90.199
HIERARCH ESO ISS PBL24 END 90.181
HIERARCH ESO ISS PBLA24 START 13.493
HIERARCH ESO ISS PBLA24 END 13.9
HIERARCH ESO ISS PBL34 START 46.258
HIERARCH ESO ISS PBL34 END 46.311
HIERARCH ESO ISS PBLA34 START 339.852
HIERARCH ESO ISS PBLA34 END 340.126
HIERARCH ESO ISS AMBI TAU0 START 0.003053
HIERARCH ESO ISS AMBI TAU0 END 0.002185
HIERARCH ESO ISS AMBI TEMP 12.41
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.76