Exposure
ID
GRAVI.2025-08-24T03:53:18.446_1
Header ID
GRAVI.2025-08-24T03:53:18.446
Date updated
2025-08-24 04:01:01 UTC+0000
Release date
2026-08-24 04:01:00 UTC+0000
UTC Start
2025-08-24 03:53:18.446
UTC End
2025-08-24 03:55:58.446
MJD Start
60911.16201905
MJD End
60911.16387090186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002941
Ambient temperature (°C)
4.41
Seeing (arcsec)
0.9199999999999999
Observation
ID
70096
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
52009
Name
AX_Sgr
RA
272.109291
DEC
-18.55221
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 46.1980 46.1900 177.3000 177.7000
A0-J2 91.8190 90.7950 113.5000 114.0000
A0-J6 160.0310 159.6080 37.3220 37.3580
B5-J2 82.5530 81.6270 83.4000 83.5000
B5-J6 197.6450 197.3990 28.6700 28.7760
J2-J6 164.3880 164.4220 4.4700 4.8510
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 60911.16201905
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V AX Sgr
HIERARCH ESO INS SOBJ NAME AX_Sgr
RA 272.109291
DEC -18.55221
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 46.198
HIERARCH ESO ISS PBL12 END 46.19
HIERARCH ESO ISS PBLA12 START 177.3
HIERARCH ESO ISS PBLA12 END 177.7
HIERARCH ESO ISS PBL13 START 91.819
HIERARCH ESO ISS PBL13 END 90.795
HIERARCH ESO ISS PBLA13 START 113.5
HIERARCH ESO ISS PBLA13 END 114.0
HIERARCH ESO ISS PBL14 START 160.031
HIERARCH ESO ISS PBL14 END 159.608
HIERARCH ESO ISS PBLA14 START 37.322
HIERARCH ESO ISS PBLA14 END 37.358
HIERARCH ESO ISS PBL23 START 82.553
HIERARCH ESO ISS PBL23 END 81.627
HIERARCH ESO ISS PBLA23 START 83.4
HIERARCH ESO ISS PBLA23 END 83.5
HIERARCH ESO ISS PBL24 START 197.645
HIERARCH ESO ISS PBL24 END 197.399
HIERARCH ESO ISS PBLA24 START 28.67
HIERARCH ESO ISS PBLA24 END 28.776
HIERARCH ESO ISS PBL34 START 164.388
HIERARCH ESO ISS PBL34 END 164.422
HIERARCH ESO ISS PBLA34 START 4.47
HIERARCH ESO ISS PBLA34 END 4.851
HIERARCH ESO ISS AMBI TAU0 START 0.002941
HIERARCH ESO ISS AMBI TAU0 END 0.002941
HIERARCH ESO ISS AMBI TEMP 4.41
HIERARCH ESO ISS AMBI FWHM START 0.94
HIERARCH ESO ISS AMBI FWHM END 0.9