Exposure
ID
GRAVI.2025-05-28T05:28:26.309_1
Header ID
GRAVI.2025-05-28T05:28:26.309
Date updated
2025-05-28 05:46:21 UTC+0000
Release date
2025-05-28 05:28:26 UTC+0000
UTC Start
2025-05-28 05:28:26.309
UTC End
2025-05-28 05:31:06.309
MJD Start
60823.22808228
MJD End
60823.22993413186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0038425
Ambient temperature (°C)
12.4
Seeing (arcsec)
0.8999999999999999
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 88.5360 88.7470 111.1000 111.3000
A0-J2 124.1750 124.6080 87.6000 87.8000
A0-K0 122.0190 122.4440 64.8460 65.1630
G1-J2 55.6850 55.8400 48.1000 48.5000
G1-K0 88.2870 88.3640 18.3950 18.7690
J2-K0 48.5690 48.5590 343.7190 343.9830
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 60823.22808228
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 88.536
HIERARCH ESO ISS PBL12 END 88.747
HIERARCH ESO ISS PBLA12 START 111.1
HIERARCH ESO ISS PBLA12 END 111.3
HIERARCH ESO ISS PBL13 START 124.175
HIERARCH ESO ISS PBL13 END 124.608
HIERARCH ESO ISS PBLA13 START 87.6
HIERARCH ESO ISS PBLA13 END 87.8
HIERARCH ESO ISS PBL14 START 122.019
HIERARCH ESO ISS PBL14 END 122.444
HIERARCH ESO ISS PBLA14 START 64.846
HIERARCH ESO ISS PBLA14 END 65.163
HIERARCH ESO ISS PBL23 START 55.685
HIERARCH ESO ISS PBL23 END 55.84
HIERARCH ESO ISS PBLA23 START 48.1
HIERARCH ESO ISS PBLA23 END 48.5
HIERARCH ESO ISS PBL24 START 88.287
HIERARCH ESO ISS PBL24 END 88.364
HIERARCH ESO ISS PBLA24 START 18.395
HIERARCH ESO ISS PBLA24 END 18.769
HIERARCH ESO ISS PBL34 START 48.569
HIERARCH ESO ISS PBL34 END 48.559
HIERARCH ESO ISS PBLA34 START 343.719
HIERARCH ESO ISS PBLA34 END 343.983
HIERARCH ESO ISS AMBI TAU0 START 0.003868
HIERARCH ESO ISS AMBI TAU0 END 0.003817
HIERARCH ESO ISS AMBI TEMP 12.4
HIERARCH ESO ISS AMBI FWHM START 0.85
HIERARCH ESO ISS AMBI FWHM END 0.95