Exposure
ID
GRAVI.2025-05-20T04:28:29.161_1
Header ID
GRAVI.2025-05-20T04:28:29.161
Date updated
2025-05-20 04:41:03 UTC+0000
Release date
2025-05-20 04:28:29 UTC+0000
UTC Start
2025-05-20 04:28:29.161
UTC End
2025-05-20 04:31:41.161
MJD Start
60815.18644862
MJD End
60815.188670842224
Exposure time (s)
192.0
Validation level
1
Tau 0: Coherence time (s)
0.006148
Ambient temperature (°C)
14.07
Seeing (arcsec)
0.765
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 20.8070 20.9550 124.8000 125.1000
A0-D0 29.5840 29.6870 42.3000 43.1000
A0-C1 18.0350 18.2060 92.0060 92.5640
B2-D0 33.8640 33.8610 4.8000 5.3000
B2-C1 11.2800 11.2790 4.7630 5.2950
D0-C1 22.5840 22.5820 184.8140 185.3460
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 60815.18644862
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 20.807
HIERARCH ESO ISS PBL12 END 20.955
HIERARCH ESO ISS PBLA12 START 124.8
HIERARCH ESO ISS PBLA12 END 125.1
HIERARCH ESO ISS PBL13 START 29.584
HIERARCH ESO ISS PBL13 END 29.687
HIERARCH ESO ISS PBLA13 START 42.3
HIERARCH ESO ISS PBLA13 END 43.1
HIERARCH ESO ISS PBL14 START 18.035
HIERARCH ESO ISS PBL14 END 18.206
HIERARCH ESO ISS PBLA14 START 92.006
HIERARCH ESO ISS PBLA14 END 92.564
HIERARCH ESO ISS PBL23 START 33.864
HIERARCH ESO ISS PBL23 END 33.861
HIERARCH ESO ISS PBLA23 START 4.8
HIERARCH ESO ISS PBLA23 END 5.3
HIERARCH ESO ISS PBL24 START 11.28
HIERARCH ESO ISS PBL24 END 11.279
HIERARCH ESO ISS PBLA24 START 4.763
HIERARCH ESO ISS PBLA24 END 5.295
HIERARCH ESO ISS PBL34 START 22.584
HIERARCH ESO ISS PBL34 END 22.582
HIERARCH ESO ISS PBLA34 START 184.814
HIERARCH ESO ISS PBLA34 END 185.346
HIERARCH ESO ISS AMBI TAU0 START 0.005692
HIERARCH ESO ISS AMBI TAU0 END 0.006604
HIERARCH ESO ISS AMBI TEMP 14.07
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.81