Exposure
ID
GRAVI.2025-04-30T09:05:41.039_1
Header ID
GRAVI.2025-04-30T09:05:41.039
Date updated
2025-04-30 09:15:51 UTC+0000
Release date
2026-04-30 09:15:51 UTC+0000
UTC Start
2025-04-30 09:05:41.039
UTC End
2025-04-30 09:08:21.039
MJD Start
60795.37894721
MJD End
60795.38079906186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.00515
Ambient temperature (°C)
11.64
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 48.5400 48.5500 163.1000 163.5000
A0-J2 123.0710 122.6790 107.8000 108.3000
A0-J6 157.9680 157.5850 36.3780 36.6430
B5-J2 103.4810 103.0360 85.1000 85.5000
B5-J6 191.0140 190.7310 24.6300 24.8980
J2-J6 166.4510 166.4830 351.8830 352.2580
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 60795.37894721
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 48.54
HIERARCH ESO ISS PBL12 END 48.55
HIERARCH ESO ISS PBLA12 START 163.1
HIERARCH ESO ISS PBLA12 END 163.5
HIERARCH ESO ISS PBL13 START 123.071
HIERARCH ESO ISS PBL13 END 122.679
HIERARCH ESO ISS PBLA13 START 107.8
HIERARCH ESO ISS PBLA13 END 108.3
HIERARCH ESO ISS PBL14 START 157.968
HIERARCH ESO ISS PBL14 END 157.585
HIERARCH ESO ISS PBLA14 START 36.378
HIERARCH ESO ISS PBLA14 END 36.643
HIERARCH ESO ISS PBL23 START 103.481
HIERARCH ESO ISS PBL23 END 103.036
HIERARCH ESO ISS PBLA23 START 85.1
HIERARCH ESO ISS PBLA23 END 85.5
HIERARCH ESO ISS PBL24 START 191.014
HIERARCH ESO ISS PBL24 END 190.731
HIERARCH ESO ISS PBLA24 START 24.63
HIERARCH ESO ISS PBLA24 END 24.898
HIERARCH ESO ISS PBL34 START 166.451
HIERARCH ESO ISS PBL34 END 166.483
HIERARCH ESO ISS PBLA34 START 351.883
HIERARCH ESO ISS PBLA34 END 352.258
HIERARCH ESO ISS AMBI TAU0 START 0.00515
HIERARCH ESO ISS AMBI TAU0 END 0.00515
HIERARCH ESO ISS AMBI TEMP 11.64
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64