Exposure
ID
PIONI.2025-08-23T04:48:23.520_1
Header ID
PIONI.2025-08-23T04:48:23.520
Date updated
2025-08-23 04:55:44 UTC+0000
Release date
2026-08-23 04:55:44 UTC+0000
UTC Start
2025-08-23 04:48:23.520
UTC End
2025-08-23 04:48:49.120
MJD Start
60910.2002722193
MJD End
60910.2005685156
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002481
Ambient temperature (°C)
2.62
Seeing (arcsec)
0.915
Observation
ID
70076
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
51926
Name
V VX Sgr
RA
272.016259
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 47.1400 47.1420 185.3000 185.4000
A0-J2 77.3670 77.1720 128.9000 129.0000
A0-J6 147.3210 147.1940 38.4840 38.4790
B5-J2 64.6240 64.4020 91.4000 91.5000
B5-J6 188.5520 188.4620 30.6200 30.6310
J2-J6 166.8570 166.8660 10.8530 10.9260
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 60910.2002722193
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.016259
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 47.14
HIERARCH ESO ISS PBL12 END 47.142
HIERARCH ESO ISS PBLA12 START 185.3
HIERARCH ESO ISS PBLA12 END 185.4
HIERARCH ESO ISS PBL13 START 77.367
HIERARCH ESO ISS PBL13 END 77.172
HIERARCH ESO ISS PBLA13 START 128.9
HIERARCH ESO ISS PBLA13 END 129.0
HIERARCH ESO ISS PBL14 START 147.321
HIERARCH ESO ISS PBL14 END 147.194
HIERARCH ESO ISS PBLA14 START 38.484
HIERARCH ESO ISS PBLA14 END 38.479
HIERARCH ESO ISS PBL23 START 64.624
HIERARCH ESO ISS PBL23 END 64.402
HIERARCH ESO ISS PBLA23 START 91.4
HIERARCH ESO ISS PBLA23 END 91.5
HIERARCH ESO ISS PBL24 START 188.552
HIERARCH ESO ISS PBL24 END 188.462
HIERARCH ESO ISS PBLA24 START 30.62
HIERARCH ESO ISS PBLA24 END 30.631
HIERARCH ESO ISS PBL34 START 166.857
HIERARCH ESO ISS PBL34 END 166.866
HIERARCH ESO ISS PBLA34 START 10.853
HIERARCH ESO ISS PBLA34 END 10.926
HIERARCH ESO ISS AMBI TAU0 START 0.002481
HIERARCH ESO ISS AMBI TAU0 END 0.002481
HIERARCH ESO ISS AMBI TEMP 2.62
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.9