Exposure
ID
PIONI.2025-08-22T01:41:31.254_1
Header ID
PIONI.2025-08-22T01:41:31.254
Date updated
2025-08-22 01:50:52 UTC+0000
Release date
2026-08-22 01:50:52 UTC+0000
UTC Start
2025-08-22 01:41:31.254
UTC End
2025-08-22 01:41:56.854
MJD Start
60909.0705006258
MJD End
60909.0707969221
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.53
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 67.6400 67.6200 55.1000 55.1000
A0-J2 126.2820 126.2160 98.0000 98.0000
A0-J3 131.2990 131.2670 50.6290 50.6740
G2-J2 89.4730 89.4390 128.9000 129.0000
G2-J3 64.0760 64.0630 45.9460 45.9920
J2-J3 103.4770 103.4720 346.8340 346.9040
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 60909.0705006258
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 67.64
HIERARCH ESO ISS PBL12 END 67.62
HIERARCH ESO ISS PBLA12 START 55.1
HIERARCH ESO ISS PBLA12 END 55.1
HIERARCH ESO ISS PBL13 START 126.282
HIERARCH ESO ISS PBL13 END 126.216
HIERARCH ESO ISS PBLA13 START 98.0
HIERARCH ESO ISS PBLA13 END 98.0
HIERARCH ESO ISS PBL14 START 131.299
HIERARCH ESO ISS PBL14 END 131.267
HIERARCH ESO ISS PBLA14 START 50.629
HIERARCH ESO ISS PBLA14 END 50.674
HIERARCH ESO ISS PBL23 START 89.473
HIERARCH ESO ISS PBL23 END 89.439
HIERARCH ESO ISS PBLA23 START 128.9
HIERARCH ESO ISS PBLA23 END 129.0
HIERARCH ESO ISS PBL24 START 64.076
HIERARCH ESO ISS PBL24 END 64.063
HIERARCH ESO ISS PBLA24 START 45.946
HIERARCH ESO ISS PBLA24 END 45.992
HIERARCH ESO ISS PBL34 START 103.477
HIERARCH ESO ISS PBL34 END 103.472
HIERARCH ESO ISS PBLA34 START 346.834
HIERARCH ESO ISS PBLA34 END 346.904
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.53
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76