Exposure
ID
PIONI.2025-06-24T07:53:56.206_1
Header ID
PIONI.2025-06-24T07:53:56.206
Date updated
2025-06-24 08:00:55 UTC+0000
Release date
2026-06-24 08:00:54 UTC+0000
UTC Start
2025-06-24 07:53:56.207
UTC End
2025-06-24 07:54:21.807
MJD Start
60850.3291227645
MJD End
60850.3294190608
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004436
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.625
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 23.6870 23.6840 170.4000 170.5000
A0-D0 23.3740 23.3210 86.8000 86.9000
A0-C1 18.3720 18.3540 145.4940 145.6340
B2-D0 31.3550 31.3360 38.2000 38.2000
B2-C1 10.4470 10.4400 38.1620 38.1740
D0-C1 20.9090 20.8960 218.2160 218.2270
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 60850.3291227645
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 23.687
HIERARCH ESO ISS PBL12 END 23.684
HIERARCH ESO ISS PBLA12 START 170.4
HIERARCH ESO ISS PBLA12 END 170.5
HIERARCH ESO ISS PBL13 START 23.374
HIERARCH ESO ISS PBL13 END 23.321
HIERARCH ESO ISS PBLA13 START 86.8
HIERARCH ESO ISS PBLA13 END 86.9
HIERARCH ESO ISS PBL14 START 18.372
HIERARCH ESO ISS PBL14 END 18.354
HIERARCH ESO ISS PBLA14 START 145.494
HIERARCH ESO ISS PBLA14 END 145.634
HIERARCH ESO ISS PBL23 START 31.355
HIERARCH ESO ISS PBL23 END 31.336
HIERARCH ESO ISS PBLA23 START 38.2
HIERARCH ESO ISS PBLA23 END 38.2
HIERARCH ESO ISS PBL24 START 10.447
HIERARCH ESO ISS PBL24 END 10.44
HIERARCH ESO ISS PBLA24 START 38.162
HIERARCH ESO ISS PBLA24 END 38.174
HIERARCH ESO ISS PBL34 START 20.909
HIERARCH ESO ISS PBL34 END 20.896
HIERARCH ESO ISS PBLA34 START 218.216
HIERARCH ESO ISS PBLA34 END 218.227
HIERARCH ESO ISS AMBI TAU0 START 0.004436
HIERARCH ESO ISS AMBI TAU0 END 0.004436
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.68