Exposure
ID
GRAVI.2025-08-24T04:06:48.480_1
Header ID
GRAVI.2025-08-24T04:06:48.480
Date updated
2025-08-24 04:15:49 UTC+0000
Release date
2025-08-24 04:06:48 UTC+0000
UTC Start
2025-08-24 04:06:48.480
UTC End
2025-08-24 04:09:28.480
MJD Start
60911.17139445
MJD End
60911.173246301856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0029614999999999997
Ambient temperature (°C)
4.15
Seeing (arcsec)
0.9950000000000001
Observation
ID
70097
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
52010
Name
HD_168000
RA
274.599344
DEC
-17.53439
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 45.9080 45.9010 177.8000 178.3000
A0-J2 89.9130 88.8540 113.2000 113.7000
A0-J6 160.3240 159.9040 37.1460 37.1710
B5-J2 81.5940 80.6470 82.6000 82.8000
B5-J6 197.9890 197.7510 28.6950 28.7930
J2-J6 163.7930 163.8340 4.9510 5.3350
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 60911.17139445
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168000
HIERARCH ESO INS SOBJ NAME HD_168000
RA 274.599344
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 45.908
HIERARCH ESO ISS PBL12 END 45.901
HIERARCH ESO ISS PBLA12 START 177.8
HIERARCH ESO ISS PBLA12 END 178.3
HIERARCH ESO ISS PBL13 START 89.913
HIERARCH ESO ISS PBL13 END 88.854
HIERARCH ESO ISS PBLA13 START 113.2
HIERARCH ESO ISS PBLA13 END 113.7
HIERARCH ESO ISS PBL14 START 160.324
HIERARCH ESO ISS PBL14 END 159.904
HIERARCH ESO ISS PBLA14 START 37.146
HIERARCH ESO ISS PBLA14 END 37.171
HIERARCH ESO ISS PBL23 START 81.594
HIERARCH ESO ISS PBL23 END 80.647
HIERARCH ESO ISS PBLA23 START 82.6
HIERARCH ESO ISS PBLA23 END 82.8
HIERARCH ESO ISS PBL24 START 197.989
HIERARCH ESO ISS PBL24 END 197.751
HIERARCH ESO ISS PBLA24 START 28.695
HIERARCH ESO ISS PBLA24 END 28.793
HIERARCH ESO ISS PBL34 START 163.793
HIERARCH ESO ISS PBL34 END 163.834
HIERARCH ESO ISS PBLA34 START 4.951
HIERARCH ESO ISS PBLA34 END 5.335
HIERARCH ESO ISS AMBI TAU0 START 0.002843
HIERARCH ESO ISS AMBI TAU0 END 0.00308
HIERARCH ESO ISS AMBI TEMP 4.15
HIERARCH ESO ISS AMBI FWHM START 1.1
HIERARCH ESO ISS AMBI FWHM END 0.89