Exposure
ID
GRAVI.2025-04-06T07:53:54.344_1
Header ID
GRAVI.2025-04-06T07:53:54.344
Date updated
2025-04-06 08:06:01 UTC+0000
Release date
2026-04-06 08:06:01 UTC+0000
UTC Start
2025-04-06 07:53:54.344
UTC End
2025-04-06 07:57:06.344
MJD Start
60771.3291012
MJD End
60771.33132342222
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0026645
Ambient temperature (°C)
13.41
Seeing (arcsec)
0.8300000000000001
Observation
ID
66057
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
49176
Name
BD-154915
RA
274.604925
DEC
-15.30366
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 24.6170 24.6800 134.8000 134.9000
A0-D0 27.4050 27.6240 58.5000 59.0000
A0-C1 20.5820 20.7180 109.2570 109.3690
B2-D0 32.2050 32.2360 10.5000 11.1000
B2-C1 10.7290 10.7390 10.4870 11.0220
D0-C1 21.4760 21.4970 190.5470 191.0820
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 60771.3291012
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-15 4915
HIERARCH ESO INS SOBJ NAME BD-154915
RA 274.604925
DEC -15.30366
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 24.617
HIERARCH ESO ISS PBL12 END 24.68
HIERARCH ESO ISS PBLA12 START 134.8
HIERARCH ESO ISS PBLA12 END 134.9
HIERARCH ESO ISS PBL13 START 27.405
HIERARCH ESO ISS PBL13 END 27.624
HIERARCH ESO ISS PBLA13 START 58.5
HIERARCH ESO ISS PBLA13 END 59.0
HIERARCH ESO ISS PBL14 START 20.582
HIERARCH ESO ISS PBL14 END 20.718
HIERARCH ESO ISS PBLA14 START 109.257
HIERARCH ESO ISS PBLA14 END 109.369
HIERARCH ESO ISS PBL23 START 32.205
HIERARCH ESO ISS PBL23 END 32.236
HIERARCH ESO ISS PBLA23 START 10.5
HIERARCH ESO ISS PBLA23 END 11.1
HIERARCH ESO ISS PBL24 START 10.729
HIERARCH ESO ISS PBL24 END 10.739
HIERARCH ESO ISS PBLA24 START 10.487
HIERARCH ESO ISS PBLA24 END 11.022
HIERARCH ESO ISS PBL34 START 21.476
HIERARCH ESO ISS PBL34 END 21.497
HIERARCH ESO ISS PBLA34 START 190.547
HIERARCH ESO ISS PBLA34 END 191.082
HIERARCH ESO ISS AMBI TAU0 START 0.002311
HIERARCH ESO ISS AMBI TAU0 END 0.003018
HIERARCH ESO ISS AMBI TEMP 13.41
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.73