Exposure
ID
PIONI.2025-08-22T01:40:15.810_1
Header ID
PIONI.2025-08-22T01:40:15.810
Date updated
2025-08-22 01:46:00 UTC+0000
Release date
2026-08-22 01:46:00 UTC+0000
UTC Start
2025-08-22 01:40:15.810
UTC End
2025-08-22 01:40:41.410
MJD Start
60909.0696274298
MJD End
60909.0699237261
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.5
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 67.6800 67.6610 55.0000 55.0000
A0-J2 126.4190 126.3540 97.8000 97.9000
A0-J3 131.3660 131.3340 50.5330 50.5790
G2-J2 89.5420 89.5090 128.8000 128.8000
G2-J3 64.1030 64.0900 45.8490 45.8950
J2-J3 103.4890 103.4840 346.6860 346.7560
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 60909.0696274298
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.68
HIERARCH ESO ISS PBL12 END 67.661
HIERARCH ESO ISS PBLA12 START 55.0
HIERARCH ESO ISS PBLA12 END 55.0
HIERARCH ESO ISS PBL13 START 126.419
HIERARCH ESO ISS PBL13 END 126.354
HIERARCH ESO ISS PBLA13 START 97.8
HIERARCH ESO ISS PBLA13 END 97.9
HIERARCH ESO ISS PBL14 START 131.366
HIERARCH ESO ISS PBL14 END 131.334
HIERARCH ESO ISS PBLA14 START 50.533
HIERARCH ESO ISS PBLA14 END 50.579
HIERARCH ESO ISS PBL23 START 89.542
HIERARCH ESO ISS PBL23 END 89.509
HIERARCH ESO ISS PBLA23 START 128.8
HIERARCH ESO ISS PBLA23 END 128.8
HIERARCH ESO ISS PBL24 START 64.103
HIERARCH ESO ISS PBL24 END 64.09
HIERARCH ESO ISS PBLA24 START 45.849
HIERARCH ESO ISS PBLA24 END 45.895
HIERARCH ESO ISS PBL34 START 103.489
HIERARCH ESO ISS PBL34 END 103.484
HIERARCH ESO ISS PBLA34 START 346.686
HIERARCH ESO ISS PBLA34 END 346.756
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.5
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76