Exposure
ID
PIONI.2025-08-17T02:09:41.143_1
Header ID
PIONI.2025-08-17T02:09:41.143
Date updated
2025-08-17 02:15:48 UTC+0000
Release date
2026-08-17 02:15:48 UTC+0000
UTC Start
2025-08-17 02:09:41.142
UTC End
2025-08-17 02:10:06.742
MJD Start
60904.0900595165
MJD End
60904.0903558128
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002674
Ambient temperature (°C)
11.35
Seeing (arcsec)
0.8
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 66.2600 66.2190 277.5000 277.6000
K0-D0 93.5800 93.5290 256.4000 256.5000
K0-J3 56.0330 56.0270 339.8540 339.9290
G2-D0 39.7270 39.7200 219.5000 219.6000
G2-J3 63.8700 63.8540 46.5760 46.6190
D0-J3 103.4130 103.3900 43.8760 43.9190
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 60904.0900595165
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 66.26
HIERARCH ESO ISS PBL12 END 66.219
HIERARCH ESO ISS PBLA12 START 277.5
HIERARCH ESO ISS PBLA12 END 277.6
HIERARCH ESO ISS PBL13 START 93.58
HIERARCH ESO ISS PBL13 END 93.529
HIERARCH ESO ISS PBLA13 START 256.4
HIERARCH ESO ISS PBLA13 END 256.5
HIERARCH ESO ISS PBL14 START 56.033
HIERARCH ESO ISS PBL14 END 56.027
HIERARCH ESO ISS PBLA14 START 339.854
HIERARCH ESO ISS PBLA14 END 339.929
HIERARCH ESO ISS PBL23 START 39.727
HIERARCH ESO ISS PBL23 END 39.72
HIERARCH ESO ISS PBLA23 START 219.5
HIERARCH ESO ISS PBLA23 END 219.6
HIERARCH ESO ISS PBL24 START 63.87
HIERARCH ESO ISS PBL24 END 63.854
HIERARCH ESO ISS PBLA24 START 46.576
HIERARCH ESO ISS PBLA24 END 46.619
HIERARCH ESO ISS PBL34 START 103.413
HIERARCH ESO ISS PBL34 END 103.39
HIERARCH ESO ISS PBLA34 START 43.876
HIERARCH ESO ISS PBLA34 END 43.919
HIERARCH ESO ISS AMBI TAU0 START 0.002674
HIERARCH ESO ISS AMBI TAU0 END 0.002674
HIERARCH ESO ISS AMBI TEMP 11.35
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.8