Exposure
ID
GRAVI.2025-06-18T06:01:03.191_1
Header ID
GRAVI.2025-06-18T06:01:03.191
Date updated
2025-06-18 06:11:56 UTC+0000
Release date
2025-06-18 06:01:03 UTC+0000
UTC Start
2025-06-18 06:01:03.191
UTC End
2025-06-18 06:03:43.191
MJD Start
60844.25073138
MJD End
60844.25258323186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0026579999999999998
Ambient temperature (°C)
6.4
Seeing (arcsec)
0.735
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 88.2200 88.0010 120.1000 120.4000
A0-J2 126.6860 126.3640 96.4000 96.6000
A0-K0 126.6430 126.4160 74.5040 74.6980
G1-J2 57.9850 57.9260 58.7000 58.9000
G1-K0 90.4670 90.4760 30.3480 30.5810
J2-K0 48.1300 48.1240 355.4040 355.7310
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 60844.25073138
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 88.22
HIERARCH ESO ISS PBL12 END 88.001
HIERARCH ESO ISS PBLA12 START 120.1
HIERARCH ESO ISS PBLA12 END 120.4
HIERARCH ESO ISS PBL13 START 126.686
HIERARCH ESO ISS PBL13 END 126.364
HIERARCH ESO ISS PBLA13 START 96.4
HIERARCH ESO ISS PBLA13 END 96.6
HIERARCH ESO ISS PBL14 START 126.643
HIERARCH ESO ISS PBL14 END 126.416
HIERARCH ESO ISS PBLA14 START 74.504
HIERARCH ESO ISS PBLA14 END 74.698
HIERARCH ESO ISS PBL23 START 57.985
HIERARCH ESO ISS PBL23 END 57.926
HIERARCH ESO ISS PBLA23 START 58.7
HIERARCH ESO ISS PBLA23 END 58.9
HIERARCH ESO ISS PBL24 START 90.467
HIERARCH ESO ISS PBL24 END 90.476
HIERARCH ESO ISS PBLA24 START 30.348
HIERARCH ESO ISS PBLA24 END 30.581
HIERARCH ESO ISS PBL34 START 48.13
HIERARCH ESO ISS PBL34 END 48.124
HIERARCH ESO ISS PBLA34 START 355.404
HIERARCH ESO ISS PBLA34 END 355.731
HIERARCH ESO ISS AMBI TAU0 START 0.002236
HIERARCH ESO ISS AMBI TAU0 END 0.00308
HIERARCH ESO ISS AMBI TEMP 6.4
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.74