Exposure
ID
PIONI.2025-08-15T04:17:20.254_1
Header ID
PIONI.2025-08-15T04:17:20.254
Date updated
2025-08-15 04:25:35 UTC+0000
Release date
2026-08-15 04:25:34 UTC+0000
UTC Start
2025-08-15 04:17:20.254
UTC End
2025-08-15 04:17:45.854
MJD Start
60902.178706645
MJD End
60902.179002941295
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.63
Seeing (arcsec)
1.1
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 51.5700 51.4690 293.0000 293.1000
K0-D0 73.2330 73.0820 265.8000 265.9000
K0-J3 54.9770 54.9750 356.6860 356.7770
G2-D0 36.1070 36.0780 225.1000 225.1000
G2-J3 56.2630 56.2030 51.9150 51.9240
D0-J3 92.2160 92.1260 49.2580 49.2670
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 60902.178706645
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 51.57
HIERARCH ESO ISS PBL12 END 51.469
HIERARCH ESO ISS PBLA12 START 293.0
HIERARCH ESO ISS PBLA12 END 293.1
HIERARCH ESO ISS PBL13 START 73.233
HIERARCH ESO ISS PBL13 END 73.082
HIERARCH ESO ISS PBLA13 START 265.8
HIERARCH ESO ISS PBLA13 END 265.9
HIERARCH ESO ISS PBL14 START 54.977
HIERARCH ESO ISS PBL14 END 54.975
HIERARCH ESO ISS PBLA14 START 356.686
HIERARCH ESO ISS PBLA14 END 356.777
HIERARCH ESO ISS PBL23 START 36.107
HIERARCH ESO ISS PBL23 END 36.078
HIERARCH ESO ISS PBLA23 START 225.1
HIERARCH ESO ISS PBLA23 END 225.1
HIERARCH ESO ISS PBL24 START 56.263
HIERARCH ESO ISS PBL24 END 56.203
HIERARCH ESO ISS PBLA24 START 51.915
HIERARCH ESO ISS PBLA24 END 51.924
HIERARCH ESO ISS PBL34 START 92.216
HIERARCH ESO ISS PBL34 END 92.126
HIERARCH ESO ISS PBLA34 START 49.258
HIERARCH ESO ISS PBLA34 END 49.267
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.63
HIERARCH ESO ISS AMBI FWHM START 1.12
HIERARCH ESO ISS AMBI FWHM END 1.08