Exposure
ID
PIONI.2025-08-17T01:57:06.154_1
Header ID
PIONI.2025-08-17T01:57:06.154
Date updated
2025-08-17 02:05:49 UTC+0000
Release date
2026-08-17 02:05:49 UTC+0000
UTC Start
2025-08-17 01:57:06.154
UTC End
2025-08-17 01:57:31.754
MJD Start
60904.0813212288
MJD End
60904.081617525095
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002256
Ambient temperature (°C)
11.09
Seeing (arcsec)
0.7
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 67.0230 66.9900 276.3000 276.3000
K0-D0 94.5190 94.4800 255.4000 255.4000
K0-J3 56.1650 56.1590 338.3110 338.3840
G2-D0 39.8530 39.8480 218.6000 218.6000
G2-J3 64.1590 64.1480 45.6330 45.6800
D0-J3 103.8250 103.8090 42.9250 42.9720
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 60904.0813212288
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 67.023
HIERARCH ESO ISS PBL12 END 66.99
HIERARCH ESO ISS PBLA12 START 276.3
HIERARCH ESO ISS PBLA12 END 276.3
HIERARCH ESO ISS PBL13 START 94.519
HIERARCH ESO ISS PBL13 END 94.48
HIERARCH ESO ISS PBLA13 START 255.4
HIERARCH ESO ISS PBLA13 END 255.4
HIERARCH ESO ISS PBL14 START 56.165
HIERARCH ESO ISS PBL14 END 56.159
HIERARCH ESO ISS PBLA14 START 338.311
HIERARCH ESO ISS PBLA14 END 338.384
HIERARCH ESO ISS PBL23 START 39.853
HIERARCH ESO ISS PBL23 END 39.848
HIERARCH ESO ISS PBLA23 START 218.6
HIERARCH ESO ISS PBLA23 END 218.6
HIERARCH ESO ISS PBL24 START 64.159
HIERARCH ESO ISS PBL24 END 64.148
HIERARCH ESO ISS PBLA24 START 45.633
HIERARCH ESO ISS PBLA24 END 45.68
HIERARCH ESO ISS PBL34 START 103.825
HIERARCH ESO ISS PBL34 END 103.809
HIERARCH ESO ISS PBLA34 START 42.925
HIERARCH ESO ISS PBLA34 END 42.972
HIERARCH ESO ISS AMBI TAU0 START 0.002256
HIERARCH ESO ISS AMBI TAU0 END 0.002256
HIERARCH ESO ISS AMBI TEMP 11.09
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7