Exposure
ID
PIONI.2025-08-22T01:07:24.423_1
Header ID
PIONI.2025-08-22T01:07:24.423
Date updated
2025-08-22 01:16:38 UTC+0000
Release date
2026-08-22 01:16:37 UTC+0000
UTC Start
2025-08-22 01:07:24.423
UTC End
2025-08-22 01:07:50.023
MJD Start
60909.0468104542
MJD End
60909.0471067505
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.56
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 68.3040 68.3000 52.2000 52.3000
A0-J2 128.8540 128.8300 94.6000 94.6000
A0-J3 132.3780 132.3710 47.7870 47.8420
G2-J2 90.8810 90.8650 125.0000 125.1000
G2-J3 64.4960 64.4940 43.0800 43.1360
J2-J3 103.7800 103.7760 342.9680 343.0330
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 60909.0468104542
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 68.304
HIERARCH ESO ISS PBL12 END 68.3
HIERARCH ESO ISS PBLA12 START 52.2
HIERARCH ESO ISS PBLA12 END 52.3
HIERARCH ESO ISS PBL13 START 128.854
HIERARCH ESO ISS PBL13 END 128.83
HIERARCH ESO ISS PBLA13 START 94.6
HIERARCH ESO ISS PBLA13 END 94.6
HIERARCH ESO ISS PBL14 START 132.378
HIERARCH ESO ISS PBL14 END 132.371
HIERARCH ESO ISS PBLA14 START 47.787
HIERARCH ESO ISS PBLA14 END 47.842
HIERARCH ESO ISS PBL23 START 90.881
HIERARCH ESO ISS PBL23 END 90.865
HIERARCH ESO ISS PBLA23 START 125.0
HIERARCH ESO ISS PBLA23 END 125.1
HIERARCH ESO ISS PBL24 START 64.496
HIERARCH ESO ISS PBL24 END 64.494
HIERARCH ESO ISS PBLA24 START 43.08
HIERARCH ESO ISS PBLA24 END 43.136
HIERARCH ESO ISS PBL34 START 103.78
HIERARCH ESO ISS PBL34 END 103.776
HIERARCH ESO ISS PBLA34 START 342.968
HIERARCH ESO ISS PBLA34 END 343.033
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.56
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76