Exposure
ID
PIONI.2025-08-22T01:09:17.799_1
Header ID
PIONI.2025-08-22T01:09:17.799
Date updated
2025-08-22 01:16:38 UTC+0000
Release date
2026-08-22 01:16:37 UTC+0000
UTC Start
2025-08-22 01:09:17.798
UTC End
2025-08-22 01:09:43.398
MJD Start
60909.0481226654
MJD End
60909.0484189617
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.51
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 68.2900 68.2850 52.4000 52.5000
A0-J2 128.7740 128.7480 94.8000 94.8000
A0-J3 132.3560 132.3490 47.9600 48.0140
G2-J2 90.8300 90.8140 125.2000 125.3000
G2-J3 64.4890 64.4860 43.2550 43.3090
J2-J3 103.7650 103.7610 343.1760 343.2410
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 60909.0481226654
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 68.29
HIERARCH ESO ISS PBL12 END 68.285
HIERARCH ESO ISS PBLA12 START 52.4
HIERARCH ESO ISS PBLA12 END 52.5
HIERARCH ESO ISS PBL13 START 128.774
HIERARCH ESO ISS PBL13 END 128.748
HIERARCH ESO ISS PBLA13 START 94.8
HIERARCH ESO ISS PBLA13 END 94.8
HIERARCH ESO ISS PBL14 START 132.356
HIERARCH ESO ISS PBL14 END 132.349
HIERARCH ESO ISS PBLA14 START 47.96
HIERARCH ESO ISS PBLA14 END 48.014
HIERARCH ESO ISS PBL23 START 90.83
HIERARCH ESO ISS PBL23 END 90.814
HIERARCH ESO ISS PBLA23 START 125.2
HIERARCH ESO ISS PBLA23 END 125.3
HIERARCH ESO ISS PBL24 START 64.489
HIERARCH ESO ISS PBL24 END 64.486
HIERARCH ESO ISS PBLA24 START 43.255
HIERARCH ESO ISS PBLA24 END 43.309
HIERARCH ESO ISS PBL34 START 103.765
HIERARCH ESO ISS PBL34 END 103.761
HIERARCH ESO ISS PBLA34 START 343.176
HIERARCH ESO ISS PBLA34 END 343.241
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.51
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76