Exposure
ID
GRAVI.2025-05-20T02:55:19.924_1
Header ID
GRAVI.2025-05-20T02:55:19.924
Date updated
2025-05-20 03:05:52 UTC+0000
Release date
2025-05-20 02:55:19 UTC+0000
UTC Start
2025-05-20 02:55:19.924
UTC End
2025-05-20 02:58:31.924
MJD Start
60815.12175838
MJD End
60815.12398060223
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.005086
Ambient temperature (°C)
13.77
Seeing (arcsec)
0.58
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 16.1950 16.4090 119.0000 119.1000
A0-D0 27.1840 27.2570 19.5000 20.5000
A0-C1 12.9060 13.1340 75.1620 76.0000
B2-D0 33.8380 33.8430 351.4000 351.9000
B2-C1 11.2710 11.2730 351.3490 351.8750
D0-C1 22.5670 22.5700 171.3850 171.9120
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 60815.12175838
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 16.195
HIERARCH ESO ISS PBL12 END 16.409
HIERARCH ESO ISS PBLA12 START 119.0
HIERARCH ESO ISS PBLA12 END 119.1
HIERARCH ESO ISS PBL13 START 27.184
HIERARCH ESO ISS PBL13 END 27.257
HIERARCH ESO ISS PBLA13 START 19.5
HIERARCH ESO ISS PBLA13 END 20.5
HIERARCH ESO ISS PBL14 START 12.906
HIERARCH ESO ISS PBL14 END 13.134
HIERARCH ESO ISS PBLA14 START 75.162
HIERARCH ESO ISS PBLA14 END 76.0
HIERARCH ESO ISS PBL23 START 33.838
HIERARCH ESO ISS PBL23 END 33.843
HIERARCH ESO ISS PBLA23 START 351.4
HIERARCH ESO ISS PBLA23 END 351.9
HIERARCH ESO ISS PBL24 START 11.271
HIERARCH ESO ISS PBL24 END 11.273
HIERARCH ESO ISS PBLA24 START 351.349
HIERARCH ESO ISS PBLA24 END 351.875
HIERARCH ESO ISS PBL34 START 22.567
HIERARCH ESO ISS PBL34 END 22.57
HIERARCH ESO ISS PBLA34 START 171.385
HIERARCH ESO ISS PBLA34 END 171.912
HIERARCH ESO ISS AMBI TAU0 START 0.00489
HIERARCH ESO ISS AMBI TAU0 END 0.005282
HIERARCH ESO ISS AMBI TEMP 13.77
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.58