Exposure
ID
PIONI.2025-08-22T00:24:35.532_1
Header ID
PIONI.2025-08-22T00:24:35.532
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 00:24:35.532
UTC End
2025-08-22 00:25:13.932
MJD Start
60909.0170779186
MJD End
60909.01752236304
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.75
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 67.9890 68.0060 47.9000 48.0000
A0-J2 128.6370 128.6780 90.5000 90.6000
A0-J3 131.7800 131.8090 43.4730 43.5570
G2-J2 91.0440 91.0590 120.9000 120.9000
G2-J3 64.2170 64.2300 38.7340 38.8180
J2-J3 103.9840 103.9840 338.5860 338.6580
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 60909.0170779186
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 67.989
HIERARCH ESO ISS PBL12 END 68.006
HIERARCH ESO ISS PBLA12 START 47.9
HIERARCH ESO ISS PBLA12 END 48.0
HIERARCH ESO ISS PBL13 START 128.637
HIERARCH ESO ISS PBL13 END 128.678
HIERARCH ESO ISS PBLA13 START 90.5
HIERARCH ESO ISS PBLA13 END 90.6
HIERARCH ESO ISS PBL14 START 131.78
HIERARCH ESO ISS PBL14 END 131.809
HIERARCH ESO ISS PBLA14 START 43.473
HIERARCH ESO ISS PBLA14 END 43.557
HIERARCH ESO ISS PBL23 START 91.044
HIERARCH ESO ISS PBL23 END 91.059
HIERARCH ESO ISS PBLA23 START 120.9
HIERARCH ESO ISS PBLA23 END 120.9
HIERARCH ESO ISS PBL24 START 64.217
HIERARCH ESO ISS PBL24 END 64.23
HIERARCH ESO ISS PBLA24 START 38.734
HIERARCH ESO ISS PBLA24 END 38.818
HIERARCH ESO ISS PBL34 START 103.984
HIERARCH ESO ISS PBL34 END 103.984
HIERARCH ESO ISS PBLA34 START 338.586
HIERARCH ESO ISS PBLA34 END 338.658
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.75
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76