Exposure
ID
PIONI.2025-07-25T06:41:59.089_1
Header ID
PIONI.2025-07-25T06:41:59.089
Date updated
2025-07-25 06:50:49 UTC+0000
Release date
2026-07-25 06:50:48 UTC+0000
UTC Start
2025-07-25 06:41:59.089
UTC End
2025-07-25 06:42:24.689
MJD Start
60881.2791561182
MJD End
60881.2794524145
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004344499999999999
Ambient temperature (°C)
11.9
Seeing (arcsec)
0.64
Observation
ID
68227
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
50630
Name
V VX Sgr
RA
272.015659
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 23.5270 23.5270 179.6000 179.7000
A0-D0 18.5120 18.4480 91.4000 91.5000
A0-C1 17.0300 17.0160 158.3830 158.5530
B2-D0 29.4800 29.4550 38.5000 38.5000
B2-C1 9.8230 9.8150 38.4540 38.4480
D0-C1 19.6570 19.6400 218.5010 218.4960
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 60881.2791561182
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.015659
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 23.527
HIERARCH ESO ISS PBL12 END 23.527
HIERARCH ESO ISS PBLA12 START 179.6
HIERARCH ESO ISS PBLA12 END 179.7
HIERARCH ESO ISS PBL13 START 18.512
HIERARCH ESO ISS PBL13 END 18.448
HIERARCH ESO ISS PBLA13 START 91.4
HIERARCH ESO ISS PBLA13 END 91.5
HIERARCH ESO ISS PBL14 START 17.03
HIERARCH ESO ISS PBL14 END 17.016
HIERARCH ESO ISS PBLA14 START 158.383
HIERARCH ESO ISS PBLA14 END 158.553
HIERARCH ESO ISS PBL23 START 29.48
HIERARCH ESO ISS PBL23 END 29.455
HIERARCH ESO ISS PBLA23 START 38.5
HIERARCH ESO ISS PBLA23 END 38.5
HIERARCH ESO ISS PBL24 START 9.823
HIERARCH ESO ISS PBL24 END 9.815
HIERARCH ESO ISS PBLA24 START 38.454
HIERARCH ESO ISS PBLA24 END 38.448
HIERARCH ESO ISS PBL34 START 19.657
HIERARCH ESO ISS PBL34 END 19.64
HIERARCH ESO ISS PBLA34 START 218.501
HIERARCH ESO ISS PBLA34 END 218.496
HIERARCH ESO ISS AMBI TAU0 START 0.004448
HIERARCH ESO ISS AMBI TAU0 END 0.004241
HIERARCH ESO ISS AMBI TEMP 11.9
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.67