Exposure
ID
GRAVI.2025-05-20T09:14:50.222_1
Header ID
GRAVI.2025-05-20T09:14:50.222
Date updated
2025-05-20 09:25:50 UTC+0000
Release date
2025-05-20 09:14:50 UTC+0000
UTC Start
2025-05-20 09:14:50.222
UTC End
2025-05-20 09:18:02.222
MJD Start
60815.3853035
MJD End
60815.387525722224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.007959
Ambient temperature (°C)
14.14
Seeing (arcsec)
0.36
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 25.2970 25.2950 159.2000 159.8000
A0-D0 28.2630 28.0710 89.8000 90.4000
A0-C1 22.0120 21.9650 135.6030 136.3090
B2-D0 30.5960 30.4770 39.1000 39.4000
B2-C1 10.1930 10.1530 39.0210 39.3280
D0-C1 20.4030 20.3240 219.0890 219.3970
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 60815.3853035
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 25.297
HIERARCH ESO ISS PBL12 END 25.295
HIERARCH ESO ISS PBLA12 START 159.2
HIERARCH ESO ISS PBLA12 END 159.8
HIERARCH ESO ISS PBL13 START 28.263
HIERARCH ESO ISS PBL13 END 28.071
HIERARCH ESO ISS PBLA13 START 89.8
HIERARCH ESO ISS PBLA13 END 90.4
HIERARCH ESO ISS PBL14 START 22.012
HIERARCH ESO ISS PBL14 END 21.965
HIERARCH ESO ISS PBLA14 START 135.603
HIERARCH ESO ISS PBLA14 END 136.309
HIERARCH ESO ISS PBL23 START 30.596
HIERARCH ESO ISS PBL23 END 30.477
HIERARCH ESO ISS PBLA23 START 39.1
HIERARCH ESO ISS PBLA23 END 39.4
HIERARCH ESO ISS PBL24 START 10.193
HIERARCH ESO ISS PBL24 END 10.153
HIERARCH ESO ISS PBLA24 START 39.021
HIERARCH ESO ISS PBLA24 END 39.328
HIERARCH ESO ISS PBL34 START 20.403
HIERARCH ESO ISS PBL34 END 20.324
HIERARCH ESO ISS PBLA34 START 219.089
HIERARCH ESO ISS PBLA34 END 219.397
HIERARCH ESO ISS AMBI TAU0 START 0.009622
HIERARCH ESO ISS AMBI TAU0 END 0.006296
HIERARCH ESO ISS AMBI TEMP 14.14
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.38