Exposure
ID
PIONI.2025-08-15T04:31:03.745_1
Header ID
PIONI.2025-08-15T04:31:03.745
Date updated
2025-08-15 04:35:47 UTC+0000
Release date
2026-08-15 04:35:47 UTC+0000
UTC Start
2025-08-15 04:31:03.745
UTC End
2025-08-15 04:31:29.345
MJD Start
60902.1882377905
MJD End
60902.188534086796
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.12
Seeing (arcsec)
1.23
Observation
ID
68194
Category
science
Program ID
115.27VC.001
Program Title
UNVEILING THE MASS-LOSS PROCESS OF RED SUPERGIANTS: IMAGING THE RED SUPERGIANT VX SAGITARII WITH VLTI AND ALMA
Program Type
Normal
PI / COI
JADLOVSKY / WITTKOWSKI / CHIAVASSA / KRAVCHENKO / KRTICKA / PALADINI / HÖFNER / FREYTAG / HUMPHREYS
Target
ID
50684
Name
V VX Sgr
RA
272.016859
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 49.2340 49.1300 295.5000 295.6000
K0-D0 69.6840 69.5230 267.0000 267.0000
K0-J3 54.9480 54.9470 358.7590 358.8500
G2-D0 35.4020 35.3700 225.3000 225.3000
G2-J3 54.8290 54.7640 52.0590 52.0630
D0-J3 90.0810 89.9840 49.4060 49.4100
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VC.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60902.1882377905
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.016859
DEC -22.22406
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 49.234
HIERARCH ESO ISS PBL12 END 49.13
HIERARCH ESO ISS PBLA12 START 295.5
HIERARCH ESO ISS PBLA12 END 295.6
HIERARCH ESO ISS PBL13 START 69.684
HIERARCH ESO ISS PBL13 END 69.523
HIERARCH ESO ISS PBLA13 START 267.0
HIERARCH ESO ISS PBLA13 END 267.0
HIERARCH ESO ISS PBL14 START 54.948
HIERARCH ESO ISS PBL14 END 54.947
HIERARCH ESO ISS PBLA14 START 358.759
HIERARCH ESO ISS PBLA14 END 358.85
HIERARCH ESO ISS PBL23 START 35.402
HIERARCH ESO ISS PBL23 END 35.37
HIERARCH ESO ISS PBLA23 START 225.3
HIERARCH ESO ISS PBLA23 END 225.3
HIERARCH ESO ISS PBL24 START 54.829
HIERARCH ESO ISS PBL24 END 54.764
HIERARCH ESO ISS PBLA24 START 52.059
HIERARCH ESO ISS PBLA24 END 52.063
HIERARCH ESO ISS PBL34 START 90.081
HIERARCH ESO ISS PBL34 END 89.984
HIERARCH ESO ISS PBLA34 START 49.406
HIERARCH ESO ISS PBLA34 END 49.41
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.12
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.23