Exposure
ID
GRAVI.2025-09-02T00:59:13.439_1
Header ID
GRAVI.2025-09-02T00:59:13.439
Date updated
2025-09-02 01:10:50 UTC+0000
Release date
2025-09-02 00:59:13 UTC+0000
UTC Start
2025-09-02 00:59:13.439
UTC End
2025-09-02 01:01:53.439
MJD Start
60920.04112777
MJD End
60920.04297962185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.00273
Ambient temperature (°C)
10.6
Seeing (arcsec)
0.675
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 88.4370 88.2260 119.8000 120.1000
A0-J2 126.9970 126.6950 96.2000 96.4000
A0-K0 126.8590 126.6500 74.2970 74.4930
G1-J2 58.0390 57.9870 58.5000 58.7000
G1-K0 90.4540 90.4660 30.1000 30.3370
J2-K0 48.1380 48.1300 355.0640 355.3900
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 60920.04112777
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 88.437
HIERARCH ESO ISS PBL12 END 88.226
HIERARCH ESO ISS PBLA12 START 119.8
HIERARCH ESO ISS PBLA12 END 120.1
HIERARCH ESO ISS PBL13 START 126.997
HIERARCH ESO ISS PBL13 END 126.695
HIERARCH ESO ISS PBLA13 START 96.2
HIERARCH ESO ISS PBLA13 END 96.4
HIERARCH ESO ISS PBL14 START 126.859
HIERARCH ESO ISS PBL14 END 126.65
HIERARCH ESO ISS PBLA14 START 74.297
HIERARCH ESO ISS PBLA14 END 74.493
HIERARCH ESO ISS PBL23 START 58.039
HIERARCH ESO ISS PBL23 END 57.987
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.7
HIERARCH ESO ISS PBL24 START 90.454
HIERARCH ESO ISS PBL24 END 90.466
HIERARCH ESO ISS PBLA24 START 30.1
HIERARCH ESO ISS PBLA24 END 30.337
HIERARCH ESO ISS PBL34 START 48.138
HIERARCH ESO ISS PBL34 END 48.13
HIERARCH ESO ISS PBLA34 START 355.064
HIERARCH ESO ISS PBLA34 END 355.39
HIERARCH ESO ISS AMBI TAU0 START 0.002334
HIERARCH ESO ISS AMBI TAU0 END 0.003126
HIERARCH ESO ISS AMBI TEMP 10.6
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.66