Exposure
ID
GRAVI.2025-08-31T23:55:17.764_1
Header ID
GRAVI.2025-08-31T23:55:17.764
Date updated
2025-09-01 00:05:45 UTC+0000
Release date
2026-09-01 00:05:45 UTC+0000
UTC Start
2025-08-31 23:55:17.764
UTC End
2025-08-31 23:57:57.764
MJD Start
60918.99673338
MJD End
60918.99858523186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0017035
Ambient temperature (°C)
6.54
Seeing (arcsec)
1.745
Observation
ID
67591
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
50267
Name
V492_Aql
RA
284.861258
DEC
5.37783
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 90.4370 90.4730 113.9000 113.8000
A0-J2 124.9310 125.3470 94.1000 94.0000
A0-K0 116.0170 116.6770 73.5390 73.5650
G1-J2 50.2020 50.5170 56.6000 56.8000
G1-K0 75.1080 75.3580 22.3420 22.7290
J2-K0 43.9050 43.8230 342.2950 342.5630
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 60918.99673338
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME V V492 Aql
HIERARCH ESO INS SOBJ NAME V492_Aql
RA 284.861258
DEC 5.37783
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 90.437
HIERARCH ESO ISS PBL12 END 90.473
HIERARCH ESO ISS PBLA12 START 113.9
HIERARCH ESO ISS PBLA12 END 113.8
HIERARCH ESO ISS PBL13 START 124.931
HIERARCH ESO ISS PBL13 END 125.347
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 116.017
HIERARCH ESO ISS PBL14 END 116.677
HIERARCH ESO ISS PBLA14 START 73.539
HIERARCH ESO ISS PBLA14 END 73.565
HIERARCH ESO ISS PBL23 START 50.202
HIERARCH ESO ISS PBL23 END 50.517
HIERARCH ESO ISS PBLA23 START 56.6
HIERARCH ESO ISS PBLA23 END 56.8
HIERARCH ESO ISS PBL24 START 75.108
HIERARCH ESO ISS PBL24 END 75.358
HIERARCH ESO ISS PBLA24 START 22.342
HIERARCH ESO ISS PBLA24 END 22.729
HIERARCH ESO ISS PBL34 START 43.905
HIERARCH ESO ISS PBL34 END 43.823
HIERARCH ESO ISS PBLA34 START 342.295
HIERARCH ESO ISS PBLA34 END 342.563
HIERARCH ESO ISS AMBI TAU0 START 0.001723
HIERARCH ESO ISS AMBI TAU0 END 0.001684
HIERARCH ESO ISS AMBI TEMP 6.54
HIERARCH ESO ISS AMBI FWHM START 1.7
HIERARCH ESO ISS AMBI FWHM END 1.79