Exposure
ID
PIONI.2025-06-22T07:19:59.438_1
Header ID
PIONI.2025-06-22T07:19:59.438
Date updated
2025-06-22 07:25:52 UTC+0000
Release date
2026-06-22 07:25:52 UTC+0000
UTC Start
2025-06-22 07:19:59.438
UTC End
2025-06-22 07:20:25.038
MJD Start
60848.3055490525
MJD End
60848.3058453488
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0027025
Ambient temperature (°C)
11.38
Seeing (arcsec)
0.47
Observation
ID
68194
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
50684
Name
V VX Sgr
RA
272.016859
DEC
-22.22406
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 56.2780 56.1890 288.3000 288.4000
K0-D0 80.1160 79.9880 263.5000 263.6000
K0-J3 55.1280 55.1230 352.2510 352.3400
G2-D0 37.4310 37.4070 224.4000 224.4000
G2-J3 58.9820 58.9330 51.2420 51.2600
D0-J3 96.2500 96.1760 48.5780 48.5970
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 60848.3055490525
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME V VX Sgr
RA 272.016859
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 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 56.278
HIERARCH ESO ISS PBL12 END 56.189
HIERARCH ESO ISS PBLA12 START 288.3
HIERARCH ESO ISS PBLA12 END 288.4
HIERARCH ESO ISS PBL13 START 80.116
HIERARCH ESO ISS PBL13 END 79.988
HIERARCH ESO ISS PBLA13 START 263.5
HIERARCH ESO ISS PBLA13 END 263.6
HIERARCH ESO ISS PBL14 START 55.128
HIERARCH ESO ISS PBL14 END 55.123
HIERARCH ESO ISS PBLA14 START 352.251
HIERARCH ESO ISS PBLA14 END 352.34
HIERARCH ESO ISS PBL23 START 37.431
HIERARCH ESO ISS PBL23 END 37.407
HIERARCH ESO ISS PBLA23 START 224.4
HIERARCH ESO ISS PBLA23 END 224.4
HIERARCH ESO ISS PBL24 START 58.982
HIERARCH ESO ISS PBL24 END 58.933
HIERARCH ESO ISS PBLA24 START 51.242
HIERARCH ESO ISS PBLA24 END 51.26
HIERARCH ESO ISS PBL34 START 96.25
HIERARCH ESO ISS PBL34 END 96.176
HIERARCH ESO ISS PBLA34 START 48.578
HIERARCH ESO ISS PBLA34 END 48.597
HIERARCH ESO ISS AMBI TAU0 START 0.002843
HIERARCH ESO ISS AMBI TAU0 END 0.002562
HIERARCH ESO ISS AMBI TEMP 11.38
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.5