Exposure
ID
PIONI.2025-08-15T02:52:37.676_1
Header ID
PIONI.2025-08-15T02:52:37.676
Date updated
2025-08-15 03:00:57 UTC+0000
Release date
2026-08-15 03:00:57 UTC+0000
UTC Start
2025-08-15 02:52:37.676
UTC End
2025-08-15 02:53:03.276
MJD Start
60902.1198805114
MJD End
60902.1201768077
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.001756
Ambient temperature (°C)
11.0
Seeing (arcsec)
1.37
Observation
ID
68194
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
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 63.2680 63.2060 281.3000 281.4000
K0-D0 89.7270 89.6460 259.3000 259.3000
K0-J3 55.6430 55.6370 344.4280 344.5090
G2-D0 39.1350 39.1220 221.9000 221.9000
G2-J3 62.5680 62.5390 48.8350 48.8690
D0-J3 101.5250 101.4830 46.1530 46.1870
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 60902.1198805114
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 63.268
HIERARCH ESO ISS PBL12 END 63.206
HIERARCH ESO ISS PBLA12 START 281.3
HIERARCH ESO ISS PBLA12 END 281.4
HIERARCH ESO ISS PBL13 START 89.727
HIERARCH ESO ISS PBL13 END 89.646
HIERARCH ESO ISS PBLA13 START 259.3
HIERARCH ESO ISS PBLA13 END 259.3
HIERARCH ESO ISS PBL14 START 55.643
HIERARCH ESO ISS PBL14 END 55.637
HIERARCH ESO ISS PBLA14 START 344.428
HIERARCH ESO ISS PBLA14 END 344.509
HIERARCH ESO ISS PBL23 START 39.135
HIERARCH ESO ISS PBL23 END 39.122
HIERARCH ESO ISS PBLA23 START 221.9
HIERARCH ESO ISS PBLA23 END 221.9
HIERARCH ESO ISS PBL24 START 62.568
HIERARCH ESO ISS PBL24 END 62.539
HIERARCH ESO ISS PBLA24 START 48.835
HIERARCH ESO ISS PBLA24 END 48.869
HIERARCH ESO ISS PBL34 START 101.525
HIERARCH ESO ISS PBL34 END 101.483
HIERARCH ESO ISS PBLA34 START 46.153
HIERARCH ESO ISS PBLA34 END 46.187
HIERARCH ESO ISS AMBI TAU0 START 0.001756
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 11.0
HIERARCH ESO ISS AMBI FWHM START 1.51
HIERARCH ESO ISS AMBI FWHM END 1.23