Exposure
ID
GRAVI.2025-05-27T05:01:44.861_1
Header ID
GRAVI.2025-05-27T05:01:44.861
Date updated
2025-05-27 05:11:13 UTC+0000
Release date
2026-05-27 05:11:13 UTC+0000
UTC Start
2025-05-27 05:01:44.861
UTC End
2025-05-27 05:04:24.861
MJD Start
60822.209547
MJD End
60822.211398851854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0048165
Ambient temperature (°C)
10.88
Seeing (arcsec)
0.56
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 86.5460 86.8460 109.6000 109.7000
A0-J2 120.9050 121.4540 85.3000 85.6000
A0-K0 119.4920 119.9820 61.9830 62.3530
G1-J2 54.9850 55.1500 45.1000 45.5000
G1-K0 88.3910 88.4550 15.7090 16.1010
J2-K0 48.6490 48.6480 342.0250 342.2740
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 60822.209547
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 86.546
HIERARCH ESO ISS PBL12 END 86.846
HIERARCH ESO ISS PBLA12 START 109.6
HIERARCH ESO ISS PBLA12 END 109.7
HIERARCH ESO ISS PBL13 START 120.905
HIERARCH ESO ISS PBL13 END 121.454
HIERARCH ESO ISS PBLA13 START 85.3
HIERARCH ESO ISS PBLA13 END 85.6
HIERARCH ESO ISS PBL14 START 119.492
HIERARCH ESO ISS PBL14 END 119.982
HIERARCH ESO ISS PBLA14 START 61.983
HIERARCH ESO ISS PBLA14 END 62.353
HIERARCH ESO ISS PBL23 START 54.985
HIERARCH ESO ISS PBL23 END 55.15
HIERARCH ESO ISS PBLA23 START 45.1
HIERARCH ESO ISS PBLA23 END 45.5
HIERARCH ESO ISS PBL24 START 88.391
HIERARCH ESO ISS PBL24 END 88.455
HIERARCH ESO ISS PBLA24 START 15.709
HIERARCH ESO ISS PBLA24 END 16.101
HIERARCH ESO ISS PBL34 START 48.649
HIERARCH ESO ISS PBL34 END 48.648
HIERARCH ESO ISS PBLA34 START 342.025
HIERARCH ESO ISS PBLA34 END 342.274
HIERARCH ESO ISS AMBI TAU0 START 0.004339
HIERARCH ESO ISS AMBI TAU0 END 0.005294
HIERARCH ESO ISS AMBI TEMP 10.88
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.56