Exposure
ID
GRAVI.2025-05-27T05:28:41.929_1
Header ID
GRAVI.2025-05-27T05:28:41.929
Date updated
2025-05-27 05:40:59 UTC+0000
Release date
2025-05-27 05:28:41 UTC+0000
UTC Start
2025-05-27 05:28:41.929
UTC End
2025-05-27 05:31:21.929
MJD Start
60822.22826307
MJD End
60822.230114921855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0043755
Ambient temperature (°C)
11.02
Seeing (arcsec)
0.51
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 88.2600 88.4840 110.9000 111.1000
A0-J2 123.6150 124.0690 87.3000 87.5000
A0-K0 121.4760 121.9160 64.4480 64.7700
G1-J2 55.4890 55.6480 47.7000 48.1000
G1-K0 88.1910 88.2680 17.9300 18.3060
J2-K0 48.5810 48.5710 343.3960 343.6560
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 60822.22826307
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 88.26
HIERARCH ESO ISS PBL12 END 88.484
HIERARCH ESO ISS PBLA12 START 110.9
HIERARCH ESO ISS PBLA12 END 111.1
HIERARCH ESO ISS PBL13 START 123.615
HIERARCH ESO ISS PBL13 END 124.069
HIERARCH ESO ISS PBLA13 START 87.3
HIERARCH ESO ISS PBLA13 END 87.5
HIERARCH ESO ISS PBL14 START 121.476
HIERARCH ESO ISS PBL14 END 121.916
HIERARCH ESO ISS PBLA14 START 64.448
HIERARCH ESO ISS PBLA14 END 64.77
HIERARCH ESO ISS PBL23 START 55.489
HIERARCH ESO ISS PBL23 END 55.648
HIERARCH ESO ISS PBLA23 START 47.7
HIERARCH ESO ISS PBLA23 END 48.1
HIERARCH ESO ISS PBL24 START 88.191
HIERARCH ESO ISS PBL24 END 88.268
HIERARCH ESO ISS PBLA24 START 17.93
HIERARCH ESO ISS PBLA24 END 18.306
HIERARCH ESO ISS PBL34 START 48.581
HIERARCH ESO ISS PBL34 END 48.571
HIERARCH ESO ISS PBLA34 START 343.396
HIERARCH ESO ISS PBLA34 END 343.656
HIERARCH ESO ISS AMBI TAU0 START 0.004352
HIERARCH ESO ISS AMBI TAU0 END 0.004399
HIERARCH ESO ISS AMBI TEMP 11.02
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.5