Exposure
ID
PIONI.2025-07-25T06:56:56.170_1
Header ID
PIONI.2025-07-25T06:56:56.170
Date updated
2025-07-25 07:00:57 UTC+0000
Release date
2026-07-25 07:00:57 UTC+0000
UTC Start
2025-07-25 06:56:56.170
UTC End
2025-07-25 06:57:21.770
MJD Start
60881.2895390089
MJD End
60881.2898353052
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0036804999999999997
Ambient temperature (°C)
12.07
Seeing (arcsec)
0.73
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 23.5370 23.5380 182.4000 182.5000
A0-D0 16.9000 16.8340 93.0000 93.1000
A0-C1 16.7260 16.7150 162.7180 162.8960
B2-D0 28.8280 28.8010 38.3000 38.3000
B2-C1 9.6060 9.5970 38.2540 38.2430
D0-C1 19.2220 19.2040 218.3000 218.2890
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 60881.2895390089
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 23.537
HIERARCH ESO ISS PBL12 END 23.538
HIERARCH ESO ISS PBLA12 START 182.4
HIERARCH ESO ISS PBLA12 END 182.5
HIERARCH ESO ISS PBL13 START 16.9
HIERARCH ESO ISS PBL13 END 16.834
HIERARCH ESO ISS PBLA13 START 93.0
HIERARCH ESO ISS PBLA13 END 93.1
HIERARCH ESO ISS PBL14 START 16.726
HIERARCH ESO ISS PBL14 END 16.715
HIERARCH ESO ISS PBLA14 START 162.718
HIERARCH ESO ISS PBLA14 END 162.896
HIERARCH ESO ISS PBL23 START 28.828
HIERARCH ESO ISS PBL23 END 28.801
HIERARCH ESO ISS PBLA23 START 38.3
HIERARCH ESO ISS PBLA23 END 38.3
HIERARCH ESO ISS PBL24 START 9.606
HIERARCH ESO ISS PBL24 END 9.597
HIERARCH ESO ISS PBLA24 START 38.254
HIERARCH ESO ISS PBLA24 END 38.243
HIERARCH ESO ISS PBL34 START 19.222
HIERARCH ESO ISS PBL34 END 19.204
HIERARCH ESO ISS PBLA34 START 218.3
HIERARCH ESO ISS PBLA34 END 218.289
HIERARCH ESO ISS AMBI TAU0 START 0.003789
HIERARCH ESO ISS AMBI TAU0 END 0.003572
HIERARCH ESO ISS AMBI TEMP 12.07
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.75