Exposure
ID
PIONI.2025-08-22T01:20:31.796_1
Header ID
PIONI.2025-08-22T01:20:31.796
Date updated
2025-08-22 01:30:50 UTC+0000
Release date
2026-08-22 01:30:50 UTC+0000
UTC Start
2025-08-22 01:20:31.796
UTC End
2025-08-22 01:20:57.396
MJD Start
60909.0559235639
MJD End
60909.0562198602
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.4
Seeing (arcsec)
1.76
Observation
ID
70062
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
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 68.1510 68.1410 53.4000 53.4000
A0-J2 128.1490 128.1070 95.9000 95.9000
A0-J3 132.1390 132.1220 48.9440 48.9950
G2-J2 90.4620 90.4390 126.4000 126.5000
G2-J3 64.4080 64.4020 44.2480 44.2990
J2-J3 103.6710 103.6660 344.4230 344.4900
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 60909.0559235639
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 A0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 68.151
HIERARCH ESO ISS PBL12 END 68.141
HIERARCH ESO ISS PBLA12 START 53.4
HIERARCH ESO ISS PBLA12 END 53.4
HIERARCH ESO ISS PBL13 START 128.149
HIERARCH ESO ISS PBL13 END 128.107
HIERARCH ESO ISS PBLA13 START 95.9
HIERARCH ESO ISS PBLA13 END 95.9
HIERARCH ESO ISS PBL14 START 132.139
HIERARCH ESO ISS PBL14 END 132.122
HIERARCH ESO ISS PBLA14 START 48.944
HIERARCH ESO ISS PBLA14 END 48.995
HIERARCH ESO ISS PBL23 START 90.462
HIERARCH ESO ISS PBL23 END 90.439
HIERARCH ESO ISS PBLA23 START 126.4
HIERARCH ESO ISS PBLA23 END 126.5
HIERARCH ESO ISS PBL24 START 64.408
HIERARCH ESO ISS PBL24 END 64.402
HIERARCH ESO ISS PBLA24 START 44.248
HIERARCH ESO ISS PBLA24 END 44.299
HIERARCH ESO ISS PBL34 START 103.671
HIERARCH ESO ISS PBL34 END 103.666
HIERARCH ESO ISS PBLA34 START 344.423
HIERARCH ESO ISS PBLA34 END 344.49
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.4
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76