Exposure
ID
GRAVI.2025-08-31T23:58:35.773_1
Header ID
GRAVI.2025-08-31T23:58:35.773
Date updated
2025-09-01 00:10:44 UTC+0000
Release date
2026-09-01 00:10:44 UTC+0000
UTC Start
2025-08-31 23:58:35.773
UTC End
2025-09-01 00:01:15.773
MJD Start
60918.99902515
MJD End
60919.000877001854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0017959999999999999
Ambient temperature (°C)
6.61
Seeing (arcsec)
1.615
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 90.4760 90.4980 113.8000 113.7000
A0-J2 125.3880 125.7810 94.0000 93.9000
A0-K0 116.7430 117.3840 73.5670 73.5900
G1-J2 50.5490 50.8590 56.8000 56.9000
G1-K0 75.3830 75.6340 22.7680 23.1480
J2-K0 43.8150 43.7330 342.5900 342.8630
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 60918.99902515
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 90.476
HIERARCH ESO ISS PBL12 END 90.498
HIERARCH ESO ISS PBLA12 START 113.8
HIERARCH ESO ISS PBLA12 END 113.7
HIERARCH ESO ISS PBL13 START 125.388
HIERARCH ESO ISS PBL13 END 125.781
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 116.743
HIERARCH ESO ISS PBL14 END 117.384
HIERARCH ESO ISS PBLA14 START 73.567
HIERARCH ESO ISS PBLA14 END 73.59
HIERARCH ESO ISS PBL23 START 50.549
HIERARCH ESO ISS PBL23 END 50.859
HIERARCH ESO ISS PBLA23 START 56.8
HIERARCH ESO ISS PBLA23 END 56.9
HIERARCH ESO ISS PBL24 START 75.383
HIERARCH ESO ISS PBL24 END 75.634
HIERARCH ESO ISS PBLA24 START 22.768
HIERARCH ESO ISS PBLA24 END 23.148
HIERARCH ESO ISS PBL34 START 43.815
HIERARCH ESO ISS PBL34 END 43.733
HIERARCH ESO ISS PBLA34 START 342.59
HIERARCH ESO ISS PBLA34 END 342.863
HIERARCH ESO ISS AMBI TAU0 START 0.001684
HIERARCH ESO ISS AMBI TAU0 END 0.001908
HIERARCH ESO ISS AMBI TEMP 6.61
HIERARCH ESO ISS AMBI FWHM START 1.79
HIERARCH ESO ISS AMBI FWHM END 1.44