Exposure
ID
GRAVI.2025-04-29T06:17:49.292_1
Header ID
GRAVI.2025-04-29T06:17:49.292
Date updated
2025-04-29 06:30:51 UTC+0000
Release date
2026-04-29 06:30:50 UTC+0000
UTC Start
2025-04-29 06:17:49.292
UTC End
2025-04-29 06:20:29.292
MJD Start
60794.26237607
MJD End
60794.264227921856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0060964999999999995
Ambient temperature (°C)
12.64
Seeing (arcsec)
0.45499999999999996
Observation
ID
67042
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
49850
Name
HD_155666
RA
258.625321
DEC
-34.80753
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 86.1420 86.4200 106.6000 107.0000
A0-J2 124.9140 125.2570 82.6000 83.1000
A0-K0 126.0960 126.2950 60.8970 61.3710
G1-J2 57.9810 58.0200 45.5000 45.9000
G1-K0 90.2920 90.2720 17.8210 18.2070
J2-K0 47.3290 47.3630 343.1710 343.4570
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 60794.26237607
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 155666
HIERARCH ESO INS SOBJ NAME HD_155666
RA 258.625321
DEC -34.80753
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 86.142
HIERARCH ESO ISS PBL12 END 86.42
HIERARCH ESO ISS PBLA12 START 106.6
HIERARCH ESO ISS PBLA12 END 107.0
HIERARCH ESO ISS PBL13 START 124.914
HIERARCH ESO ISS PBL13 END 125.257
HIERARCH ESO ISS PBLA13 START 82.6
HIERARCH ESO ISS PBLA13 END 83.1
HIERARCH ESO ISS PBL14 START 126.096
HIERARCH ESO ISS PBL14 END 126.295
HIERARCH ESO ISS PBLA14 START 60.897
HIERARCH ESO ISS PBLA14 END 61.371
HIERARCH ESO ISS PBL23 START 57.981
HIERARCH ESO ISS PBL23 END 58.02
HIERARCH ESO ISS PBLA23 START 45.5
HIERARCH ESO ISS PBLA23 END 45.9
HIERARCH ESO ISS PBL24 START 90.292
HIERARCH ESO ISS PBL24 END 90.272
HIERARCH ESO ISS PBLA24 START 17.821
HIERARCH ESO ISS PBLA24 END 18.207
HIERARCH ESO ISS PBL34 START 47.329
HIERARCH ESO ISS PBL34 END 47.363
HIERARCH ESO ISS PBLA34 START 343.171
HIERARCH ESO ISS PBLA34 END 343.457
HIERARCH ESO ISS AMBI TAU0 START 0.00548
HIERARCH ESO ISS AMBI TAU0 END 0.006713
HIERARCH ESO ISS AMBI TEMP 12.64
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.41