Exposure
ID
GRAVI.2025-06-18T04:47:54.005_1
Header ID
GRAVI.2025-06-18T04:47:54.005
Date updated
2025-06-18 04:55:49 UTC+0000
Release date
2025-06-18 04:47:54 UTC+0000
UTC Start
2025-06-18 04:47:54.005
UTC End
2025-06-18 04:50:34.005
MJD Start
60844.19993061
MJD End
60844.20178246185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0020924999999999997
Ambient temperature (°C)
6.54
Seeing (arcsec)
0.88
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 90.4070 90.4500 113.8000 114.0000
A0-J2 128.5150 128.6740 90.8000 91.0000
A0-K0 126.6330 126.8380 68.9370 69.1970
G1-J2 57.4720 57.5620 52.8000 53.1000
G1-K0 89.3530 89.4230 23.3810 23.7080
J2-K0 48.4020 48.3890 347.6750 347.9710
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 60844.19993061
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 90.407
HIERARCH ESO ISS PBL12 END 90.45
HIERARCH ESO ISS PBLA12 START 113.8
HIERARCH ESO ISS PBLA12 END 114.0
HIERARCH ESO ISS PBL13 START 128.515
HIERARCH ESO ISS PBL13 END 128.674
HIERARCH ESO ISS PBLA13 START 90.8
HIERARCH ESO ISS PBLA13 END 91.0
HIERARCH ESO ISS PBL14 START 126.633
HIERARCH ESO ISS PBL14 END 126.838
HIERARCH ESO ISS PBLA14 START 68.937
HIERARCH ESO ISS PBLA14 END 69.197
HIERARCH ESO ISS PBL23 START 57.472
HIERARCH ESO ISS PBL23 END 57.562
HIERARCH ESO ISS PBLA23 START 52.8
HIERARCH ESO ISS PBLA23 END 53.1
HIERARCH ESO ISS PBL24 START 89.353
HIERARCH ESO ISS PBL24 END 89.423
HIERARCH ESO ISS PBLA24 START 23.381
HIERARCH ESO ISS PBLA24 END 23.708
HIERARCH ESO ISS PBL34 START 48.402
HIERARCH ESO ISS PBL34 END 48.389
HIERARCH ESO ISS PBLA34 START 347.675
HIERARCH ESO ISS PBLA34 END 347.971
HIERARCH ESO ISS AMBI TAU0 START 0.002094
HIERARCH ESO ISS AMBI TAU0 END 0.002091
HIERARCH ESO ISS AMBI TEMP 6.54
HIERARCH ESO ISS AMBI FWHM START 0.85
HIERARCH ESO ISS AMBI FWHM END 0.91