Exposure
ID
GRAVI.2025-08-02T04:17:39.099_1
Header ID
GRAVI.2025-08-02T04:17:39.099
Date updated
2025-08-02 04:30:54 UTC+0000
Release date
2025-08-02 04:17:39 UTC+0000
UTC Start
2025-08-02 04:17:39.099
UTC End
2025-08-02 04:20:19.099
MJD Start
60889.17892476
MJD End
60889.18077661186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0027514999999999996
Ambient temperature (°C)
10.14
Seeing (arcsec)
1.5150000000000001
Observation
ID
68989
Category
calibrator
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
51321
Name
HD_157097
RA
260.725474
DEC
-37.22101
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 84.4650 84.2780 146.0000 146.7000
A0-J2 109.1400 108.5410 123.3000 123.9000
A0-K0 100.1430 99.3220 97.4940 98.0080
G1-J2 45.2120 44.8400 77.0000 77.3000
G1-K0 77.2140 76.8820 42.4350 42.6160
J2-K0 47.5070 47.4890 9.7490 10.0690
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VK.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60889.17892476
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 157097
HIERARCH ESO INS SOBJ NAME HD_157097
RA 260.725474
DEC -37.22101
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 84.465
HIERARCH ESO ISS PBL12 END 84.278
HIERARCH ESO ISS PBLA12 START 146.0
HIERARCH ESO ISS PBLA12 END 146.7
HIERARCH ESO ISS PBL13 START 109.14
HIERARCH ESO ISS PBL13 END 108.541
HIERARCH ESO ISS PBLA13 START 123.3
HIERARCH ESO ISS PBLA13 END 123.9
HIERARCH ESO ISS PBL14 START 100.143
HIERARCH ESO ISS PBL14 END 99.322
HIERARCH ESO ISS PBLA14 START 97.494
HIERARCH ESO ISS PBLA14 END 98.008
HIERARCH ESO ISS PBL23 START 45.212
HIERARCH ESO ISS PBL23 END 44.84
HIERARCH ESO ISS PBLA23 START 77.0
HIERARCH ESO ISS PBLA23 END 77.3
HIERARCH ESO ISS PBL24 START 77.214
HIERARCH ESO ISS PBL24 END 76.882
HIERARCH ESO ISS PBLA24 START 42.435
HIERARCH ESO ISS PBLA24 END 42.616
HIERARCH ESO ISS PBL34 START 47.507
HIERARCH ESO ISS PBL34 END 47.489
HIERARCH ESO ISS PBLA34 START 9.749
HIERARCH ESO ISS PBLA34 END 10.069
HIERARCH ESO ISS AMBI TAU0 START 0.002639
HIERARCH ESO ISS AMBI TAU0 END 0.002864
HIERARCH ESO ISS AMBI TEMP 10.14
HIERARCH ESO ISS AMBI FWHM START 1.49
HIERARCH ESO ISS AMBI FWHM END 1.54