Exposure
ID
PIONI.2025-08-22T00:22:54.407_1
Header ID
PIONI.2025-08-22T00:22:54.407
Date updated
2025-08-22 00:31:08 UTC+0000
Release date
2026-08-22 00:31:07 UTC+0000
UTC Start
2025-08-22 00:22:54.407
UTC End
2025-08-22 00:23:32.807
MJD Start
60909.0159074897
MJD End
60909.016351934144
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.79
Seeing (arcsec)
1.76
Observation
ID
70062
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
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 67.9530 67.9710 47.8000 47.9000
A0-J2 128.5500 128.5930 90.4000 90.4000
A0-J3 131.7170 131.7480 43.2780 43.3760
G2-J2 91.0100 91.0270 120.7000 120.8000
G2-J3 64.1910 64.2040 38.5380 38.6360
J2-J3 103.9850 103.9850 338.4190 338.5030
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 60909.0159074897
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 A0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.953
HIERARCH ESO ISS PBL12 END 67.971
HIERARCH ESO ISS PBLA12 START 47.8
HIERARCH ESO ISS PBLA12 END 47.9
HIERARCH ESO ISS PBL13 START 128.55
HIERARCH ESO ISS PBL13 END 128.593
HIERARCH ESO ISS PBLA13 START 90.4
HIERARCH ESO ISS PBLA13 END 90.4
HIERARCH ESO ISS PBL14 START 131.717
HIERARCH ESO ISS PBL14 END 131.748
HIERARCH ESO ISS PBLA14 START 43.278
HIERARCH ESO ISS PBLA14 END 43.376
HIERARCH ESO ISS PBL23 START 91.01
HIERARCH ESO ISS PBL23 END 91.027
HIERARCH ESO ISS PBLA23 START 120.7
HIERARCH ESO ISS PBLA23 END 120.8
HIERARCH ESO ISS PBL24 START 64.191
HIERARCH ESO ISS PBL24 END 64.204
HIERARCH ESO ISS PBLA24 START 38.538
HIERARCH ESO ISS PBLA24 END 38.636
HIERARCH ESO ISS PBL34 START 103.985
HIERARCH ESO ISS PBL34 END 103.985
HIERARCH ESO ISS PBLA34 START 338.419
HIERARCH ESO ISS PBLA34 END 338.503
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.79
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76