Exposure
ID
PIONI.2025-08-15T02:54:30.988_1
Header ID
PIONI.2025-08-15T02:54:30.988
Date updated
2025-08-15 03:00:57 UTC+0000
Release date
2026-08-15 03:00:57 UTC+0000
UTC Start
2025-08-15 02:54:30.988
UTC End
2025-08-15 02:54:56.588
MJD Start
60902.1211919864
MJD End
60902.1214882827
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.001756
Ambient temperature (°C)
10.95
Seeing (arcsec)
1.23
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 63.0710 63.0080 281.5000 281.6000
K0-D0 89.4670 89.3840 259.4000 259.4000
K0-J3 55.6220 55.6160 344.6860 344.7680
G2-D0 39.0920 39.0790 222.0000 222.0000
G2-J3 62.4760 62.4470 48.9410 48.9750
D0-J3 101.3910 101.3480 46.2600 46.2940
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 60902.1211919864
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 63.071
HIERARCH ESO ISS PBL12 END 63.008
HIERARCH ESO ISS PBLA12 START 281.5
HIERARCH ESO ISS PBLA12 END 281.6
HIERARCH ESO ISS PBL13 START 89.467
HIERARCH ESO ISS PBL13 END 89.384
HIERARCH ESO ISS PBLA13 START 259.4
HIERARCH ESO ISS PBLA13 END 259.4
HIERARCH ESO ISS PBL14 START 55.622
HIERARCH ESO ISS PBL14 END 55.616
HIERARCH ESO ISS PBLA14 START 344.686
HIERARCH ESO ISS PBLA14 END 344.768
HIERARCH ESO ISS PBL23 START 39.092
HIERARCH ESO ISS PBL23 END 39.079
HIERARCH ESO ISS PBLA23 START 222.0
HIERARCH ESO ISS PBLA23 END 222.0
HIERARCH ESO ISS PBL24 START 62.476
HIERARCH ESO ISS PBL24 END 62.447
HIERARCH ESO ISS PBLA24 START 48.941
HIERARCH ESO ISS PBLA24 END 48.975
HIERARCH ESO ISS PBL34 START 101.391
HIERARCH ESO ISS PBL34 END 101.348
HIERARCH ESO ISS PBLA34 START 46.26
HIERARCH ESO ISS PBLA34 END 46.294
HIERARCH ESO ISS AMBI TAU0 START 0.001756
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 10.95
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.23