Exposure
ID
PIONI.2025-08-22T01:52:43.116_1
Header ID
PIONI.2025-08-22T01:52:43.116
Date updated
2025-08-22 02:01:49 UTC+0000
Release date
2026-08-22 02:01:48 UTC+0000
UTC Start
2025-08-22 01:52:43.116
UTC End
2025-08-22 01:53:08.716
MJD Start
60909.0782768009
MJD End
60909.0785730972
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.56
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 67.2280 67.2040 55.9000 55.9000
A0-J2 124.9240 124.8440 99.1000 99.2000
A0-J3 130.6110 130.5700 51.4470 51.4900
G2-J2 88.7990 88.7610 130.3000 130.4000
G2-J3 63.7970 63.7800 46.7690 46.8120
J2-J3 103.3720 103.3660 348.1600 348.2310
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 60909.0782768009
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 67.228
HIERARCH ESO ISS PBL12 END 67.204
HIERARCH ESO ISS PBLA12 START 55.9
HIERARCH ESO ISS PBLA12 END 55.9
HIERARCH ESO ISS PBL13 START 124.924
HIERARCH ESO ISS PBL13 END 124.844
HIERARCH ESO ISS PBLA13 START 99.1
HIERARCH ESO ISS PBLA13 END 99.2
HIERARCH ESO ISS PBL14 START 130.611
HIERARCH ESO ISS PBL14 END 130.57
HIERARCH ESO ISS PBLA14 START 51.447
HIERARCH ESO ISS PBLA14 END 51.49
HIERARCH ESO ISS PBL23 START 88.799
HIERARCH ESO ISS PBL23 END 88.761
HIERARCH ESO ISS PBLA23 START 130.3
HIERARCH ESO ISS PBLA23 END 130.4
HIERARCH ESO ISS PBL24 START 63.797
HIERARCH ESO ISS PBL24 END 63.78
HIERARCH ESO ISS PBLA24 START 46.769
HIERARCH ESO ISS PBLA24 END 46.812
HIERARCH ESO ISS PBL34 START 103.372
HIERARCH ESO ISS PBL34 END 103.366
HIERARCH ESO ISS PBLA34 START 348.16
HIERARCH ESO ISS PBLA34 END 348.231
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.56
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76