Exposure
ID
GRAVI.2025-05-27T08:39:50.133_1
Header ID
GRAVI.2025-05-27T08:39:50.133
Date updated
2025-05-27 08:50:56 UTC+0000
Release date
2025-05-27 08:39:50 UTC+0000
UTC Start
2025-05-27 08:39:50.133
UTC End
2025-05-27 08:42:30.133
MJD Start
60822.36099691
MJD End
60822.362848761855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0028415000000000003
Ambient temperature (°C)
11.34
Seeing (arcsec)
0.765
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 80.5310 80.1330 129.2000 129.6000
A0-J2 113.6570 112.9070 103.0000 103.3000
A0-K0 115.8980 115.2300 78.7930 78.9520
G1-J2 54.6110 54.3860 62.3000 62.4000
G1-K0 89.5490 89.4540 34.9300 35.0680
J2-K0 48.1090 48.1150 3.4850 3.8150
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 60822.36099691
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 80.531
HIERARCH ESO ISS PBL12 END 80.133
HIERARCH ESO ISS PBLA12 START 129.2
HIERARCH ESO ISS PBLA12 END 129.6
HIERARCH ESO ISS PBL13 START 113.657
HIERARCH ESO ISS PBL13 END 112.907
HIERARCH ESO ISS PBLA13 START 103.0
HIERARCH ESO ISS PBLA13 END 103.3
HIERARCH ESO ISS PBL14 START 115.898
HIERARCH ESO ISS PBL14 END 115.23
HIERARCH ESO ISS PBLA14 START 78.793
HIERARCH ESO ISS PBLA14 END 78.952
HIERARCH ESO ISS PBL23 START 54.611
HIERARCH ESO ISS PBL23 END 54.386
HIERARCH ESO ISS PBLA23 START 62.3
HIERARCH ESO ISS PBLA23 END 62.4
HIERARCH ESO ISS PBL24 START 89.549
HIERARCH ESO ISS PBL24 END 89.454
HIERARCH ESO ISS PBLA24 START 34.93
HIERARCH ESO ISS PBLA24 END 35.068
HIERARCH ESO ISS PBL34 START 48.109
HIERARCH ESO ISS PBL34 END 48.115
HIERARCH ESO ISS PBLA34 START 3.485
HIERARCH ESO ISS PBLA34 END 3.815
HIERARCH ESO ISS AMBI TAU0 START 0.002592
HIERARCH ESO ISS AMBI TAU0 END 0.003091
HIERARCH ESO ISS AMBI TEMP 11.34
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.72