Exposure
ID
PIONI.2025-08-17T02:07:48.505_1
Header ID
PIONI.2025-08-17T02:07:48.505
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 02:07:48.504
UTC End
2025-08-17 02:08:14.104
MJD Start
60904.088755839
MJD End
60904.0890521353
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002256
Ambient temperature (°C)
11.36
Seeing (arcsec)
0.66
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 66.3830 66.3440 277.4000 277.4000
K0-D0 93.7340 93.6850 256.3000 256.3000
K0-J3 56.0530 56.0470 339.6210 339.6960
G2-D0 39.7490 39.7420 219.4000 219.4000
G2-J3 63.9190 63.9040 46.4410 46.4840
D0-J3 103.4820 103.4600 43.7390 43.7830
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 60904.088755839
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 66.383
HIERARCH ESO ISS PBL12 END 66.344
HIERARCH ESO ISS PBLA12 START 277.4
HIERARCH ESO ISS PBLA12 END 277.4
HIERARCH ESO ISS PBL13 START 93.734
HIERARCH ESO ISS PBL13 END 93.685
HIERARCH ESO ISS PBLA13 START 256.3
HIERARCH ESO ISS PBLA13 END 256.3
HIERARCH ESO ISS PBL14 START 56.053
HIERARCH ESO ISS PBL14 END 56.047
HIERARCH ESO ISS PBLA14 START 339.621
HIERARCH ESO ISS PBLA14 END 339.696
HIERARCH ESO ISS PBL23 START 39.749
HIERARCH ESO ISS PBL23 END 39.742
HIERARCH ESO ISS PBLA23 START 219.4
HIERARCH ESO ISS PBLA23 END 219.4
HIERARCH ESO ISS PBL24 START 63.919
HIERARCH ESO ISS PBL24 END 63.904
HIERARCH ESO ISS PBLA24 START 46.441
HIERARCH ESO ISS PBLA24 END 46.484
HIERARCH ESO ISS PBL34 START 103.482
HIERARCH ESO ISS PBL34 END 103.46
HIERARCH ESO ISS PBLA34 START 43.739
HIERARCH ESO ISS PBLA34 END 43.783
HIERARCH ESO ISS AMBI TAU0 START 0.002256
HIERARCH ESO ISS AMBI TAU0 END 0.002256
HIERARCH ESO ISS AMBI TEMP 11.36
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.66