Exposure
ID
PIONI.2025-07-26T00:16:20.670_1
Header ID
PIONI.2025-07-26T00:16:20.670
Date updated
2025-07-26 00:21:07 UTC+0000
Release date
2026-07-26 00:21:06 UTC+0000
UTC Start
2025-07-26 00:16:20.670
UTC End
2025-07-26 00:16:46.270
MJD Start
60882.0113503486
MJD End
60882.011646644896
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004881
Ambient temperature (°C)
11.77
Seeing (arcsec)
0.45
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 23.7730 23.7880 132.9000 133.0000
A0-D0 27.8920 27.9230 53.4000 53.5000
A0-C1 19.7730 19.7990 105.4200 105.4560
B2-D0 33.1960 33.1980 8.6000 8.7000
B2-C1 11.0590 11.0600 8.5990 8.6850
D0-C1 22.1370 22.1390 188.6550 188.7410
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 60882.0113503486
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 23.773
HIERARCH ESO ISS PBL12 END 23.788
HIERARCH ESO ISS PBLA12 START 132.9
HIERARCH ESO ISS PBLA12 END 133.0
HIERARCH ESO ISS PBL13 START 27.892
HIERARCH ESO ISS PBL13 END 27.923
HIERARCH ESO ISS PBLA13 START 53.4
HIERARCH ESO ISS PBLA13 END 53.5
HIERARCH ESO ISS PBL14 START 19.773
HIERARCH ESO ISS PBL14 END 19.799
HIERARCH ESO ISS PBLA14 START 105.42
HIERARCH ESO ISS PBLA14 END 105.456
HIERARCH ESO ISS PBL23 START 33.196
HIERARCH ESO ISS PBL23 END 33.198
HIERARCH ESO ISS PBLA23 START 8.6
HIERARCH ESO ISS PBLA23 END 8.7
HIERARCH ESO ISS PBL24 START 11.059
HIERARCH ESO ISS PBL24 END 11.06
HIERARCH ESO ISS PBLA24 START 8.599
HIERARCH ESO ISS PBLA24 END 8.685
HIERARCH ESO ISS PBL34 START 22.137
HIERARCH ESO ISS PBL34 END 22.139
HIERARCH ESO ISS PBLA34 START 188.655
HIERARCH ESO ISS PBLA34 END 188.741
HIERARCH ESO ISS AMBI TAU0 START 0.004881
HIERARCH ESO ISS AMBI TAU0 END 0.004881
HIERARCH ESO ISS AMBI TEMP 11.77
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45