Exposure
ID
PIONI.2025-08-22T00:08:14.897_1
Header ID
PIONI.2025-08-22T00:08:14.897
Date updated
2025-08-22 00:16:16 UTC+0000
Release date
2026-08-22 00:16:15 UTC+0000
UTC Start
2025-08-22 00:08:14.897
UTC End
2025-08-22 00:08:53.297
MJD Start
60909.0057279794
MJD End
60909.00617242384
Exposure time (s)
38.4
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 67.5750 67.5990 46.1000 46.2000
A0-J2 127.5350 127.6020 89.0000 89.0000
A0-J3 131.0660 131.1060 41.5830 41.6780
G2-J2 90.5800 90.6090 119.5000 119.6000
G2-J3 63.9170 63.9340 36.8360 36.9320
J2-J3 103.9670 103.9690 337.0600 337.1320
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 60909.0057279794
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 67.575
HIERARCH ESO ISS PBL12 END 67.599
HIERARCH ESO ISS PBLA12 START 46.1
HIERARCH ESO ISS PBLA12 END 46.2
HIERARCH ESO ISS PBL13 START 127.535
HIERARCH ESO ISS PBL13 END 127.602
HIERARCH ESO ISS PBLA13 START 89.0
HIERARCH ESO ISS PBLA13 END 89.0
HIERARCH ESO ISS PBL14 START 131.066
HIERARCH ESO ISS PBL14 END 131.106
HIERARCH ESO ISS PBLA14 START 41.583
HIERARCH ESO ISS PBLA14 END 41.678
HIERARCH ESO ISS PBL23 START 90.58
HIERARCH ESO ISS PBL23 END 90.609
HIERARCH ESO ISS PBLA23 START 119.5
HIERARCH ESO ISS PBLA23 END 119.6
HIERARCH ESO ISS PBL24 START 63.917
HIERARCH ESO ISS PBL24 END 63.934
HIERARCH ESO ISS PBLA24 START 36.836
HIERARCH ESO ISS PBLA24 END 36.932
HIERARCH ESO ISS PBL34 START 103.967
HIERARCH ESO ISS PBL34 END 103.969
HIERARCH ESO ISS PBLA34 START 337.06
HIERARCH ESO ISS PBLA34 END 337.132
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