Exposure
ID
GRAVI.2025-08-03T04:43:44.695_1
Header ID
GRAVI.2025-08-03T04:43:44.695
Date updated
2025-08-03 04:55:55 UTC+0000
Release date
2025-08-03 04:43:44 UTC+0000
UTC Start
2025-08-03 04:43:44.695
UTC End
2025-08-03 04:46:24.695
MJD Start
60890.19704508
MJD End
60890.198896931855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0033065
Ambient temperature (°C)
10.79
Seeing (arcsec)
0.45999999999999996
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 76.1360 75.7080 134.4000 135.0000
A0-J2 105.0120 104.1220 106.5000 106.9000
A0-K0 107.9980 107.1610 80.4160 80.5620
G1-J2 51.9060 51.6150 63.2000 63.2000
G1-K0 88.3060 88.1610 36.1740 36.2670
J2-K0 48.1920 48.2020 6.9240 7.2410
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 60890.19704508
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 76.136
HIERARCH ESO ISS PBL12 END 75.708
HIERARCH ESO ISS PBLA12 START 134.4
HIERARCH ESO ISS PBLA12 END 135.0
HIERARCH ESO ISS PBL13 START 105.012
HIERARCH ESO ISS PBL13 END 104.122
HIERARCH ESO ISS PBLA13 START 106.5
HIERARCH ESO ISS PBLA13 END 106.9
HIERARCH ESO ISS PBL14 START 107.998
HIERARCH ESO ISS PBL14 END 107.161
HIERARCH ESO ISS PBLA14 START 80.416
HIERARCH ESO ISS PBLA14 END 80.562
HIERARCH ESO ISS PBL23 START 51.906
HIERARCH ESO ISS PBL23 END 51.615
HIERARCH ESO ISS PBLA23 START 63.2
HIERARCH ESO ISS PBLA23 END 63.2
HIERARCH ESO ISS PBL24 START 88.306
HIERARCH ESO ISS PBL24 END 88.161
HIERARCH ESO ISS PBLA24 START 36.174
HIERARCH ESO ISS PBLA24 END 36.267
HIERARCH ESO ISS PBL34 START 48.192
HIERARCH ESO ISS PBL34 END 48.202
HIERARCH ESO ISS PBLA34 START 6.924
HIERARCH ESO ISS PBLA34 END 7.241
HIERARCH ESO ISS AMBI TAU0 START 0.003345
HIERARCH ESO ISS AMBI TAU0 END 0.003268
HIERARCH ESO ISS AMBI TEMP 10.79
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.47