Exposure
ID
GRAVI.2025-04-28T07:54:08.586_1
Header ID
GRAVI.2025-04-28T07:54:08.586
Date updated
2025-04-28 08:05:45 UTC+0000
Release date
2026-04-28 08:05:45 UTC+0000
UTC Start
2025-04-28 07:54:08.586
UTC End
2025-04-28 07:56:48.586
MJD Start
60793.32926604
MJD End
60793.33111789185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0056485
Ambient temperature (°C)
12.55
Seeing (arcsec)
0.305
Observation
ID
67032
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
49840
Name
AX_Sgr
RA
272.10812
DEC
-18.55221
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.2820 90.3480 113.4000 113.7000
A0-J2 128.2480 128.4340 90.3000 90.6000
A0-K0 126.4380 126.6560 68.3910 68.6730
G1-J2 57.4410 57.5310 52.2000 52.6000
G1-K0 89.4840 89.5470 22.8290 23.1670
J2-K0 48.4950 48.4850 347.2600 347.5580
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 60793.32926604
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V AX Sgr
HIERARCH ESO INS SOBJ NAME AX_Sgr
RA 272.10812
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 90.282
HIERARCH ESO ISS PBL12 END 90.348
HIERARCH ESO ISS PBLA12 START 113.4
HIERARCH ESO ISS PBLA12 END 113.7
HIERARCH ESO ISS PBL13 START 128.248
HIERARCH ESO ISS PBL13 END 128.434
HIERARCH ESO ISS PBLA13 START 90.3
HIERARCH ESO ISS PBLA13 END 90.6
HIERARCH ESO ISS PBL14 START 126.438
HIERARCH ESO ISS PBL14 END 126.656
HIERARCH ESO ISS PBLA14 START 68.391
HIERARCH ESO ISS PBLA14 END 68.673
HIERARCH ESO ISS PBL23 START 57.441
HIERARCH ESO ISS PBL23 END 57.531
HIERARCH ESO ISS PBLA23 START 52.2
HIERARCH ESO ISS PBLA23 END 52.6
HIERARCH ESO ISS PBL24 START 89.484
HIERARCH ESO ISS PBL24 END 89.547
HIERARCH ESO ISS PBLA24 START 22.829
HIERARCH ESO ISS PBLA24 END 23.167
HIERARCH ESO ISS PBL34 START 48.495
HIERARCH ESO ISS PBL34 END 48.485
HIERARCH ESO ISS PBLA34 START 347.26
HIERARCH ESO ISS PBLA34 END 347.558
HIERARCH ESO ISS AMBI TAU0 START 0.005468
HIERARCH ESO ISS AMBI TAU0 END 0.005829
HIERARCH ESO ISS AMBI TEMP 12.55
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.31