Exposure
ID
GRAVI.2025-08-03T04:54:02.721_1
Header ID
GRAVI.2025-08-03T04:54:02.721
Date updated
2025-08-03 05:05:50 UTC+0000
Release date
2025-08-03 04:54:02 UTC+0000
UTC Start
2025-08-03 04:54:02.721
UTC End
2025-08-03 04:56:42.721
MJD Start
60890.20419816
MJD End
60890.20605001185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0060225
Ambient temperature (°C)
10.74
Seeing (arcsec)
0.46499999999999997
Observation
ID
67033
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
49841
Name
HD_168000
RA
274.598179
DEC
-17.53439
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 74.6280 74.1950 136.4000 136.9000
A0-J2 101.8380 100.9050 107.8000 108.2000
A0-K0 104.9950 104.1040 80.9270 81.0710
G1-J2 50.8570 50.5440 63.3000 63.4000
G1-K0 87.7760 87.6140 36.4810 36.5600
J2-K0 48.2280 48.2390 8.0300 8.3430
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 60890.20419816
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.598179
DEC -17.53439
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 74.628
HIERARCH ESO ISS PBL12 END 74.195
HIERARCH ESO ISS PBLA12 START 136.4
HIERARCH ESO ISS PBLA12 END 136.9
HIERARCH ESO ISS PBL13 START 101.838
HIERARCH ESO ISS PBL13 END 100.905
HIERARCH ESO ISS PBLA13 START 107.8
HIERARCH ESO ISS PBLA13 END 108.2
HIERARCH ESO ISS PBL14 START 104.995
HIERARCH ESO ISS PBL14 END 104.104
HIERARCH ESO ISS PBLA14 START 80.927
HIERARCH ESO ISS PBLA14 END 81.071
HIERARCH ESO ISS PBL23 START 50.857
HIERARCH ESO ISS PBL23 END 50.544
HIERARCH ESO ISS PBLA23 START 63.3
HIERARCH ESO ISS PBLA23 END 63.4
HIERARCH ESO ISS PBL24 START 87.776
HIERARCH ESO ISS PBL24 END 87.614
HIERARCH ESO ISS PBLA24 START 36.481
HIERARCH ESO ISS PBLA24 END 36.56
HIERARCH ESO ISS PBL34 START 48.228
HIERARCH ESO ISS PBL34 END 48.239
HIERARCH ESO ISS PBLA34 START 8.03
HIERARCH ESO ISS PBLA34 END 8.343
HIERARCH ESO ISS AMBI TAU0 START 0.006305
HIERARCH ESO ISS AMBI TAU0 END 0.00574
HIERARCH ESO ISS AMBI TEMP 10.74
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.48