Exposure
ID
GRAVI.2025-08-24T03:46:39.429_1
Header ID
GRAVI.2025-08-24T03:46:39.429
Date updated
2025-08-24 03:55:42 UTC+0000
Release date
2026-08-24 03:55:42 UTC+0000
UTC Start
2025-08-24 03:46:39.429
UTC End
2025-08-24 03:49:19.429
MJD Start
60911.1574008
MJD End
60911.15925265186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0031460000000000004
Ambient temperature (°C)
4.37
Seeing (arcsec)
0.915
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 46.2220 46.2110 176.2000 176.7000
A0-J2 94.1100 93.0980 112.4000 112.9000
A0-J6 160.9560 160.5520 37.2230 37.2700
B5-J2 84.6040 83.7010 83.0000 83.2000
B5-J6 198.1730 197.9430 28.4180 28.5320
J2-J6 164.3200 164.3490 3.6030 3.9880
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 60911.1574008
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 46.222
HIERARCH ESO ISS PBL12 END 46.211
HIERARCH ESO ISS PBLA12 START 176.2
HIERARCH ESO ISS PBLA12 END 176.7
HIERARCH ESO ISS PBL13 START 94.11
HIERARCH ESO ISS PBL13 END 93.098
HIERARCH ESO ISS PBLA13 START 112.4
HIERARCH ESO ISS PBLA13 END 112.9
HIERARCH ESO ISS PBL14 START 160.956
HIERARCH ESO ISS PBL14 END 160.552
HIERARCH ESO ISS PBLA14 START 37.223
HIERARCH ESO ISS PBLA14 END 37.27
HIERARCH ESO ISS PBL23 START 84.604
HIERARCH ESO ISS PBL23 END 83.701
HIERARCH ESO ISS PBLA23 START 83.0
HIERARCH ESO ISS PBLA23 END 83.2
HIERARCH ESO ISS PBL24 START 198.173
HIERARCH ESO ISS PBL24 END 197.943
HIERARCH ESO ISS PBLA24 START 28.418
HIERARCH ESO ISS PBLA24 END 28.532
HIERARCH ESO ISS PBL34 START 164.32
HIERARCH ESO ISS PBL34 END 164.349
HIERARCH ESO ISS PBLA34 START 3.603
HIERARCH ESO ISS PBLA34 END 3.988
HIERARCH ESO ISS AMBI TAU0 START 0.003363
HIERARCH ESO ISS AMBI TAU0 END 0.002929
HIERARCH ESO ISS AMBI TEMP 4.37
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.99