Exposure
ID
GRAVI.2025-05-27T05:35:23.947_1
Header ID
GRAVI.2025-05-27T05:35:23.947
Date updated
2025-05-27 05:46:21 UTC+0000
Release date
2025-05-27 05:35:23 UTC+0000
UTC Start
2025-05-27 05:35:23.947
UTC End
2025-05-27 05:38:03.947
MJD Start
60822.23291605
MJD End
60822.23476790186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0037545
Ambient temperature (°C)
11.0
Seeing (arcsec)
0.5700000000000001
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 88.7510 88.9490 111.3000 111.5000
A0-J2 124.6170 125.0290 87.8000 88.0000
A0-K0 122.4530 122.8610 65.1690 65.4800
G1-J2 55.8430 55.9940 48.5000 48.9000
G1-K0 88.3660 88.4430 18.7760 19.1450
J2-K0 48.5590 48.5490 343.9890 344.2540
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 60822.23291605
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 88.751
HIERARCH ESO ISS PBL12 END 88.949
HIERARCH ESO ISS PBLA12 START 111.3
HIERARCH ESO ISS PBLA12 END 111.5
HIERARCH ESO ISS PBL13 START 124.617
HIERARCH ESO ISS PBL13 END 125.029
HIERARCH ESO ISS PBLA13 START 87.8
HIERARCH ESO ISS PBLA13 END 88.0
HIERARCH ESO ISS PBL14 START 122.453
HIERARCH ESO ISS PBL14 END 122.861
HIERARCH ESO ISS PBLA14 START 65.169
HIERARCH ESO ISS PBLA14 END 65.48
HIERARCH ESO ISS PBL23 START 55.843
HIERARCH ESO ISS PBL23 END 55.994
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 48.9
HIERARCH ESO ISS PBL24 START 88.366
HIERARCH ESO ISS PBL24 END 88.443
HIERARCH ESO ISS PBLA24 START 18.776
HIERARCH ESO ISS PBLA24 END 19.145
HIERARCH ESO ISS PBL34 START 48.559
HIERARCH ESO ISS PBL34 END 48.549
HIERARCH ESO ISS PBLA34 START 343.989
HIERARCH ESO ISS PBLA34 END 344.254
HIERARCH ESO ISS AMBI TAU0 START 0.003941
HIERARCH ESO ISS AMBI TAU0 END 0.003568
HIERARCH ESO ISS AMBI TEMP 11.0
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.61