Exposure
ID
GRAVI.2025-05-19T09:44:24.857_1
Header ID
GRAVI.2025-05-19T09:44:24.857
Date updated
2025-05-19 09:56:11 UTC+0000
Release date
2026-05-19 09:56:11 UTC+0000
UTC Start
2025-05-19 09:44:24.857
UTC End
2025-05-19 09:47:36.857
MJD Start
60814.40584325
MJD End
60814.40806547223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0072955
Ambient temperature (°C)
12.47
Seeing (arcsec)
0.65
Observation
ID
67460
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
50182
Name
VX_Sgr
RA
272.014459
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 23.9170 23.8860 164.9000 165.5000
A0-D0 25.9210 25.6400 84.4000 84.6000
A0-C1 19.3340 19.2200 138.7900 139.5320
B2-D0 32.2600 32.1640 37.4000 37.5000
B2-C1 10.7470 10.7150 37.3200 37.4440
D0-C1 21.5130 21.4490 217.3760 217.5000
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 60814.40584325
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V VX Sgr
HIERARCH ESO INS SOBJ NAME VX_Sgr
RA 272.014459
DEC -22.22406
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 23.917
HIERARCH ESO ISS PBL12 END 23.886
HIERARCH ESO ISS PBLA12 START 164.9
HIERARCH ESO ISS PBLA12 END 165.5
HIERARCH ESO ISS PBL13 START 25.921
HIERARCH ESO ISS PBL13 END 25.64
HIERARCH ESO ISS PBLA13 START 84.4
HIERARCH ESO ISS PBLA13 END 84.6
HIERARCH ESO ISS PBL14 START 19.334
HIERARCH ESO ISS PBL14 END 19.22
HIERARCH ESO ISS PBLA14 START 138.79
HIERARCH ESO ISS PBLA14 END 139.532
HIERARCH ESO ISS PBL23 START 32.26
HIERARCH ESO ISS PBL23 END 32.164
HIERARCH ESO ISS PBLA23 START 37.4
HIERARCH ESO ISS PBLA23 END 37.5
HIERARCH ESO ISS PBL24 START 10.747
HIERARCH ESO ISS PBL24 END 10.715
HIERARCH ESO ISS PBLA24 START 37.32
HIERARCH ESO ISS PBLA24 END 37.444
HIERARCH ESO ISS PBL34 START 21.513
HIERARCH ESO ISS PBL34 END 21.449
HIERARCH ESO ISS PBLA34 START 217.376
HIERARCH ESO ISS PBLA34 END 217.5
HIERARCH ESO ISS AMBI TAU0 START 0.007676
HIERARCH ESO ISS AMBI TAU0 END 0.006915
HIERARCH ESO ISS AMBI TEMP 12.47
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.66