Exposure
ID
GRAVI.2025-05-19T09:36:03.836_1
Header ID
GRAVI.2025-05-19T09:36:03.836
Date updated
2025-05-19 09:50:53 UTC+0000
Release date
2026-05-19 09:50:53 UTC+0000
UTC Start
2025-05-19 09:36:03.836
UTC End
2025-05-19 09:39:15.836
MJD Start
60814.4000444
MJD End
60814.40226662222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0063265000000000005
Ambient temperature (°C)
12.76
Seeing (arcsec)
0.63
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 23.9920 23.9590 163.5000 164.1000
A0-D0 26.5380 26.2700 83.7000 84.0000
A0-C1 19.5960 19.4810 137.1430 137.8600
B2-D0 32.4690 32.3790 37.1000 37.2000
B2-C1 10.8170 10.7870 37.0130 37.1530
D0-C1 21.6520 21.5920 217.0700 217.2090
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 60814.4000444
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 23.992
HIERARCH ESO ISS PBL12 END 23.959
HIERARCH ESO ISS PBLA12 START 163.5
HIERARCH ESO ISS PBLA12 END 164.1
HIERARCH ESO ISS PBL13 START 26.538
HIERARCH ESO ISS PBL13 END 26.27
HIERARCH ESO ISS PBLA13 START 83.7
HIERARCH ESO ISS PBLA13 END 84.0
HIERARCH ESO ISS PBL14 START 19.596
HIERARCH ESO ISS PBL14 END 19.481
HIERARCH ESO ISS PBLA14 START 137.143
HIERARCH ESO ISS PBLA14 END 137.86
HIERARCH ESO ISS PBL23 START 32.469
HIERARCH ESO ISS PBL23 END 32.379
HIERARCH ESO ISS PBLA23 START 37.1
HIERARCH ESO ISS PBLA23 END 37.2
HIERARCH ESO ISS PBL24 START 10.817
HIERARCH ESO ISS PBL24 END 10.787
HIERARCH ESO ISS PBLA24 START 37.013
HIERARCH ESO ISS PBLA24 END 37.153
HIERARCH ESO ISS PBL34 START 21.652
HIERARCH ESO ISS PBL34 END 21.592
HIERARCH ESO ISS PBLA34 START 217.07
HIERARCH ESO ISS PBLA34 END 217.209
HIERARCH ESO ISS AMBI TAU0 START 0.006309
HIERARCH ESO ISS AMBI TAU0 END 0.006344
HIERARCH ESO ISS AMBI TEMP 12.76
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.67