Exposure
ID
PIONI.2025-08-15T02:53:53.215_1
Header ID
PIONI.2025-08-15T02:53:53.215
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 02:53:53.215
UTC End
2025-08-15 02:54:18.815
MJD Start
60902.1207547993
MJD End
60902.1210510956
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.001756
Ambient temperature (°C)
10.95
Seeing (arcsec)
1.23
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 63.1370 63.0740 281.5000 281.5000
K0-D0 89.5540 89.4720 259.4000 259.4000
K0-J3 55.6290 55.6230 344.6000 344.6810
G2-D0 39.1070 39.0930 221.9000 222.0000
G2-J3 62.5070 62.4780 48.9060 48.9400
D0-J3 101.4360 101.3930 46.2250 46.2590
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 60902.1207547993
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 63.137
HIERARCH ESO ISS PBL12 END 63.074
HIERARCH ESO ISS PBLA12 START 281.5
HIERARCH ESO ISS PBLA12 END 281.5
HIERARCH ESO ISS PBL13 START 89.554
HIERARCH ESO ISS PBL13 END 89.472
HIERARCH ESO ISS PBLA13 START 259.4
HIERARCH ESO ISS PBLA13 END 259.4
HIERARCH ESO ISS PBL14 START 55.629
HIERARCH ESO ISS PBL14 END 55.623
HIERARCH ESO ISS PBLA14 START 344.6
HIERARCH ESO ISS PBLA14 END 344.681
HIERARCH ESO ISS PBL23 START 39.107
HIERARCH ESO ISS PBL23 END 39.093
HIERARCH ESO ISS PBLA23 START 221.9
HIERARCH ESO ISS PBLA23 END 222.0
HIERARCH ESO ISS PBL24 START 62.507
HIERARCH ESO ISS PBL24 END 62.478
HIERARCH ESO ISS PBLA24 START 48.906
HIERARCH ESO ISS PBLA24 END 48.94
HIERARCH ESO ISS PBL34 START 101.436
HIERARCH ESO ISS PBL34 END 101.393
HIERARCH ESO ISS PBLA34 START 46.225
HIERARCH ESO ISS PBLA34 END 46.259
HIERARCH ESO ISS AMBI TAU0 START 0.001756
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 10.95
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.23