Exposure
ID
GRAVI.2025-05-27T05:11:44.886_1
Header ID
GRAVI.2025-05-27T05:11:44.886
Date updated
2025-05-27 05:26:05 UTC+0000
Release date
2026-05-27 05:26:05 UTC+0000
UTC Start
2025-05-27 05:11:44.886
UTC End
2025-05-27 05:14:24.886
MJD Start
60822.21649174
MJD End
60822.218343591856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0042309999999999995
Ambient temperature (°C)
10.87
Seeing (arcsec)
0.655
Observation
ID
67606
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
50278
Name
BD-194849
RA
271.882413
DEC
-19.294
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 87.5090 87.7690 110.2000 110.3000
A0-J2 122.6820 123.1690 86.2000 86.5000
A0-K0 121.0920 121.5380 63.2070 63.5580
G1-J2 55.5280 55.6820 46.5000 46.9000
G1-K0 88.6100 88.6760 17.0200 17.4030
J2-K0 48.6430 48.6400 342.8760 343.1340
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 60822.21649174
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME BD-19 4849
HIERARCH ESO INS SOBJ NAME BD-194849
RA 271.882413
DEC -19.294
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 87.509
HIERARCH ESO ISS PBL12 END 87.769
HIERARCH ESO ISS PBLA12 START 110.2
HIERARCH ESO ISS PBLA12 END 110.3
HIERARCH ESO ISS PBL13 START 122.682
HIERARCH ESO ISS PBL13 END 123.169
HIERARCH ESO ISS PBLA13 START 86.2
HIERARCH ESO ISS PBLA13 END 86.5
HIERARCH ESO ISS PBL14 START 121.092
HIERARCH ESO ISS PBL14 END 121.538
HIERARCH ESO ISS PBLA14 START 63.207
HIERARCH ESO ISS PBLA14 END 63.558
HIERARCH ESO ISS PBL23 START 55.528
HIERARCH ESO ISS PBL23 END 55.682
HIERARCH ESO ISS PBLA23 START 46.5
HIERARCH ESO ISS PBLA23 END 46.9
HIERARCH ESO ISS PBL24 START 88.61
HIERARCH ESO ISS PBL24 END 88.676
HIERARCH ESO ISS PBLA24 START 17.02
HIERARCH ESO ISS PBLA24 END 17.403
HIERARCH ESO ISS PBL34 START 48.643
HIERARCH ESO ISS PBL34 END 48.64
HIERARCH ESO ISS PBLA34 START 342.876
HIERARCH ESO ISS PBLA34 END 343.134
HIERARCH ESO ISS AMBI TAU0 START 0.003851
HIERARCH ESO ISS AMBI TAU0 END 0.004611
HIERARCH ESO ISS AMBI TEMP 10.87
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.63