Exposure
ID
PIONI.2025-08-17T02:08:26.146_1
Header ID
PIONI.2025-08-17T02:08:26.146
Date updated
2025-08-17 02:15:48 UTC+0000
Release date
2026-08-17 02:15:48 UTC+0000
UTC Start
2025-08-17 02:08:26.147
UTC End
2025-08-17 02:08:51.747
MJD Start
60904.0891915122
MJD End
60904.089487808495
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0026295
Ambient temperature (°C)
11.36
Seeing (arcsec)
0.7
Observation
ID
68194
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
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 66.3430 66.3030 277.4000 277.5000
K0-D0 93.6840 93.6340 256.3000 256.4000
K0-J3 56.0470 56.0400 339.6990 339.7740
G2-D0 39.7420 39.7350 219.4000 219.5000
G2-J3 63.9030 63.8880 46.4870 46.5300
D0-J3 103.4600 103.4370 43.7850 43.8290
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 60904.0891915122
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 66.343
HIERARCH ESO ISS PBL12 END 66.303
HIERARCH ESO ISS PBLA12 START 277.4
HIERARCH ESO ISS PBLA12 END 277.5
HIERARCH ESO ISS PBL13 START 93.684
HIERARCH ESO ISS PBL13 END 93.634
HIERARCH ESO ISS PBLA13 START 256.3
HIERARCH ESO ISS PBLA13 END 256.4
HIERARCH ESO ISS PBL14 START 56.047
HIERARCH ESO ISS PBL14 END 56.04
HIERARCH ESO ISS PBLA14 START 339.699
HIERARCH ESO ISS PBLA14 END 339.774
HIERARCH ESO ISS PBL23 START 39.742
HIERARCH ESO ISS PBL23 END 39.735
HIERARCH ESO ISS PBLA23 START 219.4
HIERARCH ESO ISS PBLA23 END 219.5
HIERARCH ESO ISS PBL24 START 63.903
HIERARCH ESO ISS PBL24 END 63.888
HIERARCH ESO ISS PBLA24 START 46.487
HIERARCH ESO ISS PBLA24 END 46.53
HIERARCH ESO ISS PBL34 START 103.46
HIERARCH ESO ISS PBL34 END 103.437
HIERARCH ESO ISS PBLA34 START 43.785
HIERARCH ESO ISS PBLA34 END 43.829
HIERARCH ESO ISS AMBI TAU0 START 0.002256
HIERARCH ESO ISS AMBI TAU0 END 0.003003
HIERARCH ESO ISS AMBI TEMP 11.36
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.74