Exposure
ID
GRAVI.2025-09-02T00:55:58.431_1
Header ID
GRAVI.2025-09-02T00:55:58.431
Date updated
2025-09-02 01:06:03 UTC+0000
Release date
2025-09-02 00:55:58 UTC+0000
UTC Start
2025-09-02 00:55:58.431
UTC End
2025-09-02 00:58:38.431
MJD Start
60920.03887073
MJD End
60920.040722581856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0026875
Ambient temperature (°C)
10.57
Seeing (arcsec)
0.605
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 88.6570 88.4570 119.4000 119.7000
A0-J2 127.3090 127.0270 95.9000 96.1000
A0-K0 127.0690 126.8790 74.0780 74.2770
G1-J2 58.0900 58.0440 58.3000 58.5000
G1-K0 90.4360 90.4520 29.8350 30.0760
J2-K0 48.1460 48.1380 354.7060 355.0310
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 60920.03887073
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 88.657
HIERARCH ESO ISS PBL12 END 88.457
HIERARCH ESO ISS PBLA12 START 119.4
HIERARCH ESO ISS PBLA12 END 119.7
HIERARCH ESO ISS PBL13 START 127.309
HIERARCH ESO ISS PBL13 END 127.027
HIERARCH ESO ISS PBLA13 START 95.9
HIERARCH ESO ISS PBLA13 END 96.1
HIERARCH ESO ISS PBL14 START 127.069
HIERARCH ESO ISS PBL14 END 126.879
HIERARCH ESO ISS PBLA14 START 74.078
HIERARCH ESO ISS PBLA14 END 74.277
HIERARCH ESO ISS PBL23 START 58.09
HIERARCH ESO ISS PBL23 END 58.044
HIERARCH ESO ISS PBLA23 START 58.3
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 90.436
HIERARCH ESO ISS PBL24 END 90.452
HIERARCH ESO ISS PBLA24 START 29.835
HIERARCH ESO ISS PBLA24 END 30.076
HIERARCH ESO ISS PBL34 START 48.146
HIERARCH ESO ISS PBL34 END 48.138
HIERARCH ESO ISS PBLA34 START 354.706
HIERARCH ESO ISS PBLA34 END 355.031
HIERARCH ESO ISS AMBI TAU0 START 0.003191
HIERARCH ESO ISS AMBI TAU0 END 0.002184
HIERARCH ESO ISS AMBI TEMP 10.57
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.67