Exposure
ID
PIONI.2025-08-22T00:05:43.483_1
Header ID
PIONI.2025-08-22T00:05:43.483
Date updated
2025-08-22 00:13:47 UTC+0000
Release date
2026-08-22 00:13:47 UTC+0000
UTC Start
2025-08-22 00:05:43.483
UTC End
2025-08-22 00:06:21.883
MJD Start
60909.0039754952
MJD End
60909.00441993964
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.59
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 67.4990 67.5240 45.8000 45.9000
A0-J2 127.3140 127.3860 88.7000 88.8000
A0-J3 130.9350 130.9780 41.2770 41.3740
G2-J2 90.4800 90.5130 119.3000 119.3000
G2-J3 63.8630 63.8800 36.5300 36.6270
J2-J3 103.9580 103.9610 336.8310 336.9020
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 60909.0039754952
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 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.499
HIERARCH ESO ISS PBL12 END 67.524
HIERARCH ESO ISS PBLA12 START 45.8
HIERARCH ESO ISS PBLA12 END 45.9
HIERARCH ESO ISS PBL13 START 127.314
HIERARCH ESO ISS PBL13 END 127.386
HIERARCH ESO ISS PBLA13 START 88.7
HIERARCH ESO ISS PBLA13 END 88.8
HIERARCH ESO ISS PBL14 START 130.935
HIERARCH ESO ISS PBL14 END 130.978
HIERARCH ESO ISS PBLA14 START 41.277
HIERARCH ESO ISS PBLA14 END 41.374
HIERARCH ESO ISS PBL23 START 90.48
HIERARCH ESO ISS PBL23 END 90.513
HIERARCH ESO ISS PBLA23 START 119.3
HIERARCH ESO ISS PBLA23 END 119.3
HIERARCH ESO ISS PBL24 START 63.863
HIERARCH ESO ISS PBL24 END 63.88
HIERARCH ESO ISS PBLA24 START 36.53
HIERARCH ESO ISS PBLA24 END 36.627
HIERARCH ESO ISS PBL34 START 103.958
HIERARCH ESO ISS PBL34 END 103.961
HIERARCH ESO ISS PBLA34 START 336.831
HIERARCH ESO ISS PBLA34 END 336.902
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.59
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76