Exposure
ID
GRAVI.2025-05-28T05:35:11.326_1
Header ID
GRAVI.2025-05-28T05:35:11.326
Date updated
2025-05-28 05:46:21 UTC+0000
Release date
2025-05-28 05:35:11 UTC+0000
UTC Start
2025-05-28 05:35:11.326
UTC End
2025-05-28 05:37:51.326
MJD Start
60823.23276998
MJD End
60823.234621831856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.00353
Ambient temperature (°C)
12.28
Seeing (arcsec)
0.99
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 88.9970 89.1790 111.5000 111.7000
A0-J2 125.1290 125.5170 88.1000 88.3000
A0-K0 122.9610 123.3520 65.5550 65.8620
G1-J2 56.0310 56.1760 49.0000 49.3000
G1-K0 88.4620 88.5390 19.2340 19.6010
J2-K0 48.5460 48.5350 344.3190 344.5900
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 60823.23276998
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 88.997
HIERARCH ESO ISS PBL12 END 89.179
HIERARCH ESO ISS PBLA12 START 111.5
HIERARCH ESO ISS PBLA12 END 111.7
HIERARCH ESO ISS PBL13 START 125.129
HIERARCH ESO ISS PBL13 END 125.517
HIERARCH ESO ISS PBLA13 START 88.1
HIERARCH ESO ISS PBLA13 END 88.3
HIERARCH ESO ISS PBL14 START 122.961
HIERARCH ESO ISS PBL14 END 123.352
HIERARCH ESO ISS PBLA14 START 65.555
HIERARCH ESO ISS PBLA14 END 65.862
HIERARCH ESO ISS PBL23 START 56.031
HIERARCH ESO ISS PBL23 END 56.176
HIERARCH ESO ISS PBLA23 START 49.0
HIERARCH ESO ISS PBLA23 END 49.3
HIERARCH ESO ISS PBL24 START 88.462
HIERARCH ESO ISS PBL24 END 88.539
HIERARCH ESO ISS PBLA24 START 19.234
HIERARCH ESO ISS PBLA24 END 19.601
HIERARCH ESO ISS PBL34 START 48.546
HIERARCH ESO ISS PBL34 END 48.535
HIERARCH ESO ISS PBLA34 START 344.319
HIERARCH ESO ISS PBLA34 END 344.59
HIERARCH ESO ISS AMBI TAU0 START 0.003639
HIERARCH ESO ISS AMBI TAU0 END 0.003421
HIERARCH ESO ISS AMBI TEMP 12.28
HIERARCH ESO ISS AMBI FWHM START 0.96
HIERARCH ESO ISS AMBI FWHM END 1.02