Exposure
ID
GRAVI.2025-05-28T06:41:41.495_1
Header ID
GRAVI.2025-05-28T06:41:41.495
Date updated
2025-05-28 08:13:15 UTC+0000
Release date
2025-05-28 06:41:41 UTC+0000
UTC Start
2025-05-28 06:41:41.495
UTC End
2025-05-28 06:44:21.495
MJD Start
60823.27895249
MJD End
60823.280804341855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004022
Ambient temperature (°C)
12.82
Seeing (arcsec)
1.33
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 90.2800 90.2040 116.2000 116.5000
A0-J2 129.1970 129.1480 93.2000 93.4000
A0-K0 127.9480 127.9740 71.5190 71.7460
G1-J2 58.1390 58.1690 55.7000 55.9000
G1-K0 90.0030 90.0540 26.6420 26.9290
J2-K0 48.2680 48.2570 350.8780 351.1900
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 60823.27895249
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 90.28
HIERARCH ESO ISS PBL12 END 90.204
HIERARCH ESO ISS PBLA12 START 116.2
HIERARCH ESO ISS PBLA12 END 116.5
HIERARCH ESO ISS PBL13 START 129.197
HIERARCH ESO ISS PBL13 END 129.148
HIERARCH ESO ISS PBLA13 START 93.2
HIERARCH ESO ISS PBLA13 END 93.4
HIERARCH ESO ISS PBL14 START 127.948
HIERARCH ESO ISS PBL14 END 127.974
HIERARCH ESO ISS PBLA14 START 71.519
HIERARCH ESO ISS PBLA14 END 71.746
HIERARCH ESO ISS PBL23 START 58.139
HIERARCH ESO ISS PBL23 END 58.169
HIERARCH ESO ISS PBLA23 START 55.7
HIERARCH ESO ISS PBLA23 END 55.9
HIERARCH ESO ISS PBL24 START 90.003
HIERARCH ESO ISS PBL24 END 90.054
HIERARCH ESO ISS PBLA24 START 26.642
HIERARCH ESO ISS PBLA24 END 26.929
HIERARCH ESO ISS PBL34 START 48.268
HIERARCH ESO ISS PBL34 END 48.257
HIERARCH ESO ISS PBLA34 START 350.878
HIERARCH ESO ISS PBLA34 END 351.19
HIERARCH ESO ISS AMBI TAU0 START 0.00388
HIERARCH ESO ISS AMBI TAU0 END 0.004164
HIERARCH ESO ISS AMBI TEMP 12.82
HIERARCH ESO ISS AMBI FWHM START 1.41
HIERARCH ESO ISS AMBI FWHM END 1.25