Exposure
ID
GRAVI.2025-08-24T03:56:33.454_1
Header ID
GRAVI.2025-08-24T03:56:33.454
Date updated
2025-08-24 04:06:30 UTC+0000
Release date
2026-08-24 04:06:30 UTC+0000
UTC Start
2025-08-24 03:56:33.454
UTC End
2025-08-24 03:59:13.454
MJD Start
60911.16427609
MJD End
60911.166127941855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003327
Ambient temperature (°C)
4.3
Seeing (arcsec)
0.84
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 46.1900 46.1830 177.8000 178.2000
A0-J2 90.6900 89.6590 114.1000 114.6000
A0-J6 159.5650 159.1310 37.3620 37.3930
B5-J2 81.5320 80.5930 83.6000 83.7000
B5-J6 197.3740 197.1200 28.7860 28.8870
J2-J6 164.4260 164.4630 4.8900 5.2700
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 60911.16427609
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 46.19
HIERARCH ESO ISS PBL12 END 46.183
HIERARCH ESO ISS PBLA12 START 177.8
HIERARCH ESO ISS PBLA12 END 178.2
HIERARCH ESO ISS PBL13 START 90.69
HIERARCH ESO ISS PBL13 END 89.659
HIERARCH ESO ISS PBLA13 START 114.1
HIERARCH ESO ISS PBLA13 END 114.6
HIERARCH ESO ISS PBL14 START 159.565
HIERARCH ESO ISS PBL14 END 159.131
HIERARCH ESO ISS PBLA14 START 37.362
HIERARCH ESO ISS PBLA14 END 37.393
HIERARCH ESO ISS PBL23 START 81.532
HIERARCH ESO ISS PBL23 END 80.593
HIERARCH ESO ISS PBLA23 START 83.6
HIERARCH ESO ISS PBLA23 END 83.7
HIERARCH ESO ISS PBL24 START 197.374
HIERARCH ESO ISS PBL24 END 197.12
HIERARCH ESO ISS PBLA24 START 28.786
HIERARCH ESO ISS PBLA24 END 28.887
HIERARCH ESO ISS PBL34 START 164.426
HIERARCH ESO ISS PBL34 END 164.463
HIERARCH ESO ISS PBLA34 START 4.89
HIERARCH ESO ISS PBLA34 END 5.27
HIERARCH ESO ISS AMBI TAU0 START 0.003334
HIERARCH ESO ISS AMBI TAU0 END 0.00332
HIERARCH ESO ISS AMBI TEMP 4.3
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.85