Exposure
ID
GRAVI.2025-06-18T05:57:48.183_1
Header ID
GRAVI.2025-06-18T05:57:48.183
Date updated
2025-06-18 06:05:55 UTC+0000
Release date
2025-06-18 05:57:48 UTC+0000
UTC Start
2025-06-18 05:57:48.183
UTC End
2025-06-18 06:00:28.183
MJD Start
60844.24847434
MJD End
60844.250326191854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0026515
Ambient temperature (°C)
6.19
Seeing (arcsec)
0.8049999999999999
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 88.4540 88.2440 119.8000 120.1000
A0-J2 127.0220 126.7200 96.1000 96.4000
A0-K0 126.8760 126.6670 74.2860 74.4830
G1-J2 58.0430 57.9910 58.5000 58.7000
G1-K0 90.4520 90.4650 30.0850 30.3230
J2-K0 48.1390 48.1310 355.0420 355.3690
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 60844.24847434
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 88.454
HIERARCH ESO ISS PBL12 END 88.244
HIERARCH ESO ISS PBLA12 START 119.8
HIERARCH ESO ISS PBLA12 END 120.1
HIERARCH ESO ISS PBL13 START 127.022
HIERARCH ESO ISS PBL13 END 126.72
HIERARCH ESO ISS PBLA13 START 96.1
HIERARCH ESO ISS PBLA13 END 96.4
HIERARCH ESO ISS PBL14 START 126.876
HIERARCH ESO ISS PBL14 END 126.667
HIERARCH ESO ISS PBLA14 START 74.286
HIERARCH ESO ISS PBLA14 END 74.483
HIERARCH ESO ISS PBL23 START 58.043
HIERARCH ESO ISS PBL23 END 57.991
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.7
HIERARCH ESO ISS PBL24 START 90.452
HIERARCH ESO ISS PBL24 END 90.465
HIERARCH ESO ISS PBLA24 START 30.085
HIERARCH ESO ISS PBLA24 END 30.323
HIERARCH ESO ISS PBL34 START 48.139
HIERARCH ESO ISS PBL34 END 48.131
HIERARCH ESO ISS PBLA34 START 355.042
HIERARCH ESO ISS PBLA34 END 355.369
HIERARCH ESO ISS AMBI TAU0 START 0.003067
HIERARCH ESO ISS AMBI TAU0 END 0.002236
HIERARCH ESO ISS AMBI TEMP 6.19
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.73