Exposure
ID
GRAVI.2025-05-28T06:03:29.398_1
Header ID
GRAVI.2025-05-28T06:03:29.398
Date updated
2025-05-28 06:12:31 UTC+0000
Release date
2025-05-28 06:03:29 UTC+0000
UTC Start
2025-05-28 06:03:29.398
UTC End
2025-05-28 06:06:09.398
MJD Start
60823.25242359
MJD End
60823.254275441854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004098
Ambient temperature (°C)
12.93
Seeing (arcsec)
1.665
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 90.2620 90.3320 113.3000 113.5000
A0-J2 128.0650 128.2700 90.3000 90.5000
A0-K0 126.0860 126.3300 68.3140 68.5820
G1-J2 57.2410 57.3430 52.1000 52.4000
G1-K0 89.1860 89.2580 22.6030 22.9380
J2-K0 48.4320 48.4190 346.9900 347.2810
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 60823.25242359
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 90.262
HIERARCH ESO ISS PBL12 END 90.332
HIERARCH ESO ISS PBLA12 START 113.3
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 128.065
HIERARCH ESO ISS PBL13 END 128.27
HIERARCH ESO ISS PBLA13 START 90.3
HIERARCH ESO ISS PBLA13 END 90.5
HIERARCH ESO ISS PBL14 START 126.086
HIERARCH ESO ISS PBL14 END 126.33
HIERARCH ESO ISS PBLA14 START 68.314
HIERARCH ESO ISS PBLA14 END 68.582
HIERARCH ESO ISS PBL23 START 57.241
HIERARCH ESO ISS PBL23 END 57.343
HIERARCH ESO ISS PBLA23 START 52.1
HIERARCH ESO ISS PBLA23 END 52.4
HIERARCH ESO ISS PBL24 START 89.186
HIERARCH ESO ISS PBL24 END 89.258
HIERARCH ESO ISS PBLA24 START 22.603
HIERARCH ESO ISS PBLA24 END 22.938
HIERARCH ESO ISS PBL34 START 48.432
HIERARCH ESO ISS PBL34 END 48.419
HIERARCH ESO ISS PBLA34 START 346.99
HIERARCH ESO ISS PBLA34 END 347.281
HIERARCH ESO ISS AMBI TAU0 START 0.003864
HIERARCH ESO ISS AMBI TAU0 END 0.004332
HIERARCH ESO ISS AMBI TEMP 12.93
HIERARCH ESO ISS AMBI FWHM START 1.59
HIERARCH ESO ISS AMBI FWHM END 1.74