Exposure
ID
GRAVI.2025-04-30T08:55:41.013_1
Header ID
GRAVI.2025-04-30T08:55:41.013
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 08:55:41.013
UTC End
2025-04-30 08:58:21.013
MJD Start
60795.37200247
MJD End
60795.37385432186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.00515
Ambient temperature (°C)
11.66
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 48.5020 48.5140 161.7000 162.2000
A0-J2 124.3080 123.9550 106.1000 106.6000
A0-J6 159.1920 158.8390 35.4660 35.7420
B5-J2 104.8920 104.4880 83.6000 84.1000
B5-J6 191.9200 191.6600 23.7110 23.9890
J2-J6 166.3300 166.3680 350.6310 351.0040
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 60795.37200247
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 48.502
HIERARCH ESO ISS PBL12 END 48.514
HIERARCH ESO ISS PBLA12 START 161.7
HIERARCH ESO ISS PBLA12 END 162.2
HIERARCH ESO ISS PBL13 START 124.308
HIERARCH ESO ISS PBL13 END 123.955
HIERARCH ESO ISS PBLA13 START 106.1
HIERARCH ESO ISS PBLA13 END 106.6
HIERARCH ESO ISS PBL14 START 159.192
HIERARCH ESO ISS PBL14 END 158.839
HIERARCH ESO ISS PBLA14 START 35.466
HIERARCH ESO ISS PBLA14 END 35.742
HIERARCH ESO ISS PBL23 START 104.892
HIERARCH ESO ISS PBL23 END 104.488
HIERARCH ESO ISS PBLA23 START 83.6
HIERARCH ESO ISS PBLA23 END 84.1
HIERARCH ESO ISS PBL24 START 191.92
HIERARCH ESO ISS PBL24 END 191.66
HIERARCH ESO ISS PBLA24 START 23.711
HIERARCH ESO ISS PBLA24 END 23.989
HIERARCH ESO ISS PBL34 START 166.33
HIERARCH ESO ISS PBL34 END 166.368
HIERARCH ESO ISS PBLA34 START 350.631
HIERARCH ESO ISS PBLA34 END 351.004
HIERARCH ESO ISS AMBI TAU0 START 0.00515
HIERARCH ESO ISS AMBI TAU0 END 0.00515
HIERARCH ESO ISS AMBI TEMP 11.66
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64