Exposure
ID
GRAVI.2025-05-28T05:25:08.301_1
Header ID
GRAVI.2025-05-28T05:25:08.301
Date updated
2025-05-28 05:46:21 UTC+0000
Release date
2025-05-28 05:25:08 UTC+0000
UTC Start
2025-05-28 05:25:08.301
UTC End
2025-05-28 05:27:48.301
MJD Start
60823.22579052
MJD End
60823.22764237186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0035045
Ambient temperature (°C)
12.48
Seeing (arcsec)
0.895
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 88.2890 88.5120 110.9000 111.1000
A0-J2 123.6740 124.1250 87.3000 87.6000
A0-K0 121.5320 121.9700 64.4880 64.8100
G1-J2 55.5090 55.6680 47.7000 48.1000
G1-K0 88.2010 88.2780 17.9760 18.3530
J2-K0 48.5790 48.5700 343.4270 343.6890
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 60823.22579052
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 88.289
HIERARCH ESO ISS PBL12 END 88.512
HIERARCH ESO ISS PBLA12 START 110.9
HIERARCH ESO ISS PBLA12 END 111.1
HIERARCH ESO ISS PBL13 START 123.674
HIERARCH ESO ISS PBL13 END 124.125
HIERARCH ESO ISS PBLA13 START 87.3
HIERARCH ESO ISS PBLA13 END 87.6
HIERARCH ESO ISS PBL14 START 121.532
HIERARCH ESO ISS PBL14 END 121.97
HIERARCH ESO ISS PBLA14 START 64.488
HIERARCH ESO ISS PBLA14 END 64.81
HIERARCH ESO ISS PBL23 START 55.509
HIERARCH ESO ISS PBL23 END 55.668
HIERARCH ESO ISS PBLA23 START 47.7
HIERARCH ESO ISS PBLA23 END 48.1
HIERARCH ESO ISS PBL24 START 88.201
HIERARCH ESO ISS PBL24 END 88.278
HIERARCH ESO ISS PBLA24 START 17.976
HIERARCH ESO ISS PBLA24 END 18.353
HIERARCH ESO ISS PBL34 START 48.579
HIERARCH ESO ISS PBL34 END 48.57
HIERARCH ESO ISS PBLA34 START 343.427
HIERARCH ESO ISS PBLA34 END 343.689
HIERARCH ESO ISS AMBI TAU0 START 0.003292
HIERARCH ESO ISS AMBI TAU0 END 0.003717
HIERARCH ESO ISS AMBI TEMP 12.48
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.88