Exposure
ID
PIONI.2025-08-15T02:40:02.976_1
Header ID
PIONI.2025-08-15T02:40:02.976
Date updated
2025-08-15 02:45:39 UTC+0000
Release date
2026-08-15 02:45:39 UTC+0000
UTC Start
2025-08-15 02:40:02.976
UTC End
2025-08-15 02:40:28.576
MJD Start
60902.1111455597
MJD End
60902.111441855996
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.001756
Ambient temperature (°C)
11.13
Seeing (arcsec)
1.4
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 64.4810 64.4270 279.9000 280.0000
K0-D0 91.3150 91.2450 258.3000 258.3000
K0-J3 55.7840 55.7770 342.7470 342.8260
G2-D0 39.3890 39.3780 221.1000 221.1000
G2-J3 63.1210 63.0970 48.0900 48.1270
D0-J3 102.3290 102.2940 45.4020 45.4390
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 60902.1111455597
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 64.481
HIERARCH ESO ISS PBL12 END 64.427
HIERARCH ESO ISS PBLA12 START 279.9
HIERARCH ESO ISS PBLA12 END 280.0
HIERARCH ESO ISS PBL13 START 91.315
HIERARCH ESO ISS PBL13 END 91.245
HIERARCH ESO ISS PBLA13 START 258.3
HIERARCH ESO ISS PBLA13 END 258.3
HIERARCH ESO ISS PBL14 START 55.784
HIERARCH ESO ISS PBL14 END 55.777
HIERARCH ESO ISS PBLA14 START 342.747
HIERARCH ESO ISS PBLA14 END 342.826
HIERARCH ESO ISS PBL23 START 39.389
HIERARCH ESO ISS PBL23 END 39.378
HIERARCH ESO ISS PBLA23 START 221.1
HIERARCH ESO ISS PBLA23 END 221.1
HIERARCH ESO ISS PBL24 START 63.121
HIERARCH ESO ISS PBL24 END 63.097
HIERARCH ESO ISS PBLA24 START 48.09
HIERARCH ESO ISS PBLA24 END 48.127
HIERARCH ESO ISS PBL34 START 102.329
HIERARCH ESO ISS PBL34 END 102.294
HIERARCH ESO ISS PBLA34 START 45.402
HIERARCH ESO ISS PBLA34 END 45.439
HIERARCH ESO ISS AMBI TAU0 START 0.001756
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 11.13
HIERARCH ESO ISS AMBI FWHM START 1.4
HIERARCH ESO ISS AMBI FWHM END 1.4