Exposure
ID
GRAVI.2025-05-20T04:20:20.140_1
Header ID
GRAVI.2025-05-20T04:20:20.140
Date updated
2025-05-20 04:35:59 UTC+0000
Release date
2025-05-20 04:20:20 UTC+0000
UTC Start
2025-05-20 04:20:20.140
UTC End
2025-05-20 04:23:32.140
MJD Start
60815.18078866
MJD End
60815.183010882225
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0043615
Ambient temperature (°C)
14.04
Seeing (arcsec)
0.69
Observation
ID
67463
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
50184
Name
HD_168592
RA
275.574242
DEC
-38.65706
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 20.4700 20.6250 124.2000 124.4000
A0-D0 29.3530 29.4580 40.5000 41.4000
A0-C1 17.6470 17.8250 90.7580 91.3310
B2-D0 33.8680 33.8660 3.6000 4.2000
B2-C1 11.2810 11.2810 3.5870 4.1240
D0-C1 22.5870 22.5860 183.6360 184.1740
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 60815.18078866
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 168592
HIERARCH ESO INS SOBJ NAME HD_168592
RA 275.574242
DEC -38.65706
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 222.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 20.47
HIERARCH ESO ISS PBL12 END 20.625
HIERARCH ESO ISS PBLA12 START 124.2
HIERARCH ESO ISS PBLA12 END 124.4
HIERARCH ESO ISS PBL13 START 29.353
HIERARCH ESO ISS PBL13 END 29.458
HIERARCH ESO ISS PBLA13 START 40.5
HIERARCH ESO ISS PBLA13 END 41.4
HIERARCH ESO ISS PBL14 START 17.647
HIERARCH ESO ISS PBL14 END 17.825
HIERARCH ESO ISS PBLA14 START 90.758
HIERARCH ESO ISS PBLA14 END 91.331
HIERARCH ESO ISS PBL23 START 33.868
HIERARCH ESO ISS PBL23 END 33.866
HIERARCH ESO ISS PBLA23 START 3.6
HIERARCH ESO ISS PBLA23 END 4.2
HIERARCH ESO ISS PBL24 START 11.281
HIERARCH ESO ISS PBL24 END 11.281
HIERARCH ESO ISS PBLA24 START 3.587
HIERARCH ESO ISS PBLA24 END 4.124
HIERARCH ESO ISS PBL34 START 22.587
HIERARCH ESO ISS PBL34 END 22.586
HIERARCH ESO ISS PBLA34 START 183.636
HIERARCH ESO ISS PBLA34 END 184.174
HIERARCH ESO ISS AMBI TAU0 START 0.004304
HIERARCH ESO ISS AMBI TAU0 END 0.004419
HIERARCH ESO ISS AMBI TEMP 14.04
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.72