Exposure
ID
GRAVI.2025-05-28T05:38:29.334_1
Header ID
GRAVI.2025-05-28T05:38:29.334
Date updated
2025-05-28 05:51:13 UTC+0000
Release date
2025-05-28 05:38:29 UTC+0000
UTC Start
2025-05-28 05:38:29.334
UTC End
2025-05-28 05:41:09.334
MJD Start
60823.23506174
MJD End
60823.236913591856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0037095
Ambient temperature (°C)
12.38
Seeing (arcsec)
1.035
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 89.2020 89.3720 111.7000 111.9000
A0-J2 125.5660 125.9350 88.4000 88.6000
A0-K0 123.4010 123.7770 65.8990 66.2000
G1-J2 56.1950 56.3350 49.4000 49.7000
G1-K0 88.5500 88.6260 19.6510 20.0080
J2-K0 48.5340 48.5230 344.6260 344.8940
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 60823.23506174
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 89.202
HIERARCH ESO ISS PBL12 END 89.372
HIERARCH ESO ISS PBLA12 START 111.7
HIERARCH ESO ISS PBLA12 END 111.9
HIERARCH ESO ISS PBL13 START 125.566
HIERARCH ESO ISS PBL13 END 125.935
HIERARCH ESO ISS PBLA13 START 88.4
HIERARCH ESO ISS PBLA13 END 88.6
HIERARCH ESO ISS PBL14 START 123.401
HIERARCH ESO ISS PBL14 END 123.777
HIERARCH ESO ISS PBLA14 START 65.899
HIERARCH ESO ISS PBLA14 END 66.2
HIERARCH ESO ISS PBL23 START 56.195
HIERARCH ESO ISS PBL23 END 56.335
HIERARCH ESO ISS PBLA23 START 49.4
HIERARCH ESO ISS PBLA23 END 49.7
HIERARCH ESO ISS PBL24 START 88.55
HIERARCH ESO ISS PBL24 END 88.626
HIERARCH ESO ISS PBLA24 START 19.651
HIERARCH ESO ISS PBLA24 END 20.008
HIERARCH ESO ISS PBL34 START 48.534
HIERARCH ESO ISS PBL34 END 48.523
HIERARCH ESO ISS PBLA34 START 344.626
HIERARCH ESO ISS PBLA34 END 344.894
HIERARCH ESO ISS AMBI TAU0 START 0.003985
HIERARCH ESO ISS AMBI TAU0 END 0.003434
HIERARCH ESO ISS AMBI TEMP 12.38
HIERARCH ESO ISS AMBI FWHM START 0.92
HIERARCH ESO ISS AMBI FWHM END 1.15