Exposure
ID
PIONI.2025-08-15T04:14:49.355_1
Header ID
PIONI.2025-08-15T04:14:49.355
Date updated
2025-08-15 04:20:52 UTC+0000
Release date
2026-08-15 04:20:51 UTC+0000
UTC Start
2025-08-15 04:14:49.356
UTC End
2025-08-15 04:15:14.956
MJD Start
60902.1769601349
MJD End
60902.1772564312
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.64
Seeing (arcsec)
1.12
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 51.9890 51.8890 292.6000 292.7000
K0-D0 73.8590 73.7110 265.6000 265.7000
K0-J3 54.9850 54.9830 356.3070 356.3970
G2-D0 36.2300 36.2010 225.1000 225.1000
G2-J3 56.5150 56.4550 51.8770 51.8860
D0-J3 92.5890 92.5010 49.2190 49.2290
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 60902.1769601349
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 51.989
HIERARCH ESO ISS PBL12 END 51.889
HIERARCH ESO ISS PBLA12 START 292.6
HIERARCH ESO ISS PBLA12 END 292.7
HIERARCH ESO ISS PBL13 START 73.859
HIERARCH ESO ISS PBL13 END 73.711
HIERARCH ESO ISS PBLA13 START 265.6
HIERARCH ESO ISS PBLA13 END 265.7
HIERARCH ESO ISS PBL14 START 54.985
HIERARCH ESO ISS PBL14 END 54.983
HIERARCH ESO ISS PBLA14 START 356.307
HIERARCH ESO ISS PBLA14 END 356.397
HIERARCH ESO ISS PBL23 START 36.23
HIERARCH ESO ISS PBL23 END 36.201
HIERARCH ESO ISS PBLA23 START 225.1
HIERARCH ESO ISS PBLA23 END 225.1
HIERARCH ESO ISS PBL24 START 56.515
HIERARCH ESO ISS PBL24 END 56.455
HIERARCH ESO ISS PBLA24 START 51.877
HIERARCH ESO ISS PBLA24 END 51.886
HIERARCH ESO ISS PBL34 START 92.589
HIERARCH ESO ISS PBL34 END 92.501
HIERARCH ESO ISS PBLA34 START 49.219
HIERARCH ESO ISS PBLA34 END 49.229
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.64
HIERARCH ESO ISS AMBI FWHM START 1.12
HIERARCH ESO ISS AMBI FWHM END 1.12