Exposure
ID
PIONI.2025-07-20T04:21:35.285_1
Header ID
PIONI.2025-07-20T04:21:35.285
Date updated
2025-07-20 04:30:54 UTC+0000
Release date
2026-07-20 04:30:53 UTC+0000
UTC Start
2025-07-20 04:21:35.285
UTC End
2025-07-20 04:22:00.885
MJD Start
60876.1816583918
MJD End
60876.181954688094
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0021675
Ambient temperature (°C)
13.51
Seeing (arcsec)
1.345
Observation
ID
68114
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
50630
Name
V VX Sgr
RA
272.015659
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.2600 86.2060 125.6000 125.6000
A0-J2 122.0390 121.9370 101.2000 101.2000
A0-K0 121.8710 121.7780 78.2080 78.2560
G1-J2 56.2310 56.1980 61.8000 61.9000
G1-K0 89.7280 89.7130 33.2010 33.2430
J2-K0 48.5270 48.5270 359.4890 359.5560
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 60876.1816583918
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.015659
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 86.26
HIERARCH ESO ISS PBL12 END 86.206
HIERARCH ESO ISS PBLA12 START 125.6
HIERARCH ESO ISS PBLA12 END 125.6
HIERARCH ESO ISS PBL13 START 122.039
HIERARCH ESO ISS PBL13 END 121.937
HIERARCH ESO ISS PBLA13 START 101.2
HIERARCH ESO ISS PBLA13 END 101.2
HIERARCH ESO ISS PBL14 START 121.871
HIERARCH ESO ISS PBL14 END 121.778
HIERARCH ESO ISS PBLA14 START 78.208
HIERARCH ESO ISS PBLA14 END 78.256
HIERARCH ESO ISS PBL23 START 56.231
HIERARCH ESO ISS PBL23 END 56.198
HIERARCH ESO ISS PBLA23 START 61.8
HIERARCH ESO ISS PBLA23 END 61.9
HIERARCH ESO ISS PBL24 START 89.728
HIERARCH ESO ISS PBL24 END 89.713
HIERARCH ESO ISS PBLA24 START 33.201
HIERARCH ESO ISS PBLA24 END 33.243
HIERARCH ESO ISS PBL34 START 48.527
HIERARCH ESO ISS PBL34 END 48.527
HIERARCH ESO ISS PBLA34 START 359.489
HIERARCH ESO ISS PBLA34 END 359.556
HIERARCH ESO ISS AMBI TAU0 START 0.002211
HIERARCH ESO ISS AMBI TAU0 END 0.002124
HIERARCH ESO ISS AMBI TEMP 13.51
HIERARCH ESO ISS AMBI FWHM START 1.22
HIERARCH ESO ISS AMBI FWHM END 1.47