Exposure
ID
GRAVI.2025-05-20T03:59:38.088_1
Header ID
GRAVI.2025-05-20T03:59:38.088
Date updated
2025-05-20 04:16:08 UTC+0000
Release date
2025-05-20 03:59:38 UTC+0000
UTC Start
2025-05-20 03:59:38.088
UTC End
2025-05-20 04:02:50.088
MJD Start
60815.16641305
MJD End
60815.168635272224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.0077495
Ambient temperature (°C)
13.77
Seeing (arcsec)
0.685
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 19.5570 19.7260 122.6000 122.9000
A0-D0 28.7670 28.8710 35.8000 36.7000
A0-C1 16.6020 16.7950 87.4610 88.0660
B2-D0 33.8740 33.8730 0.6000 1.2000
B2-C1 11.2830 11.2830 0.5940 1.1300
D0-C1 22.5900 22.5900 180.6410 181.1770
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 60815.16641305
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 19.557
HIERARCH ESO ISS PBL12 END 19.726
HIERARCH ESO ISS PBLA12 START 122.6
HIERARCH ESO ISS PBLA12 END 122.9
HIERARCH ESO ISS PBL13 START 28.767
HIERARCH ESO ISS PBL13 END 28.871
HIERARCH ESO ISS PBLA13 START 35.8
HIERARCH ESO ISS PBLA13 END 36.7
HIERARCH ESO ISS PBL14 START 16.602
HIERARCH ESO ISS PBL14 END 16.795
HIERARCH ESO ISS PBLA14 START 87.461
HIERARCH ESO ISS PBLA14 END 88.066
HIERARCH ESO ISS PBL23 START 33.874
HIERARCH ESO ISS PBL23 END 33.873
HIERARCH ESO ISS PBLA23 START 0.6
HIERARCH ESO ISS PBLA23 END 1.2
HIERARCH ESO ISS PBL24 START 11.283
HIERARCH ESO ISS PBL24 END 11.283
HIERARCH ESO ISS PBLA24 START 0.594
HIERARCH ESO ISS PBLA24 END 1.13
HIERARCH ESO ISS PBL34 START 22.59
HIERARCH ESO ISS PBL34 END 22.59
HIERARCH ESO ISS PBLA34 START 180.641
HIERARCH ESO ISS PBLA34 END 181.177
HIERARCH ESO ISS AMBI TAU0 START 0.007497
HIERARCH ESO ISS AMBI TAU0 END 0.008002
HIERARCH ESO ISS AMBI TEMP 13.77
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.72