Exposure
ID
PIONI.2025-08-15T02:53:15.355_1
Header ID
PIONI.2025-08-15T02:53:15.355
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 02:53:15.355
UTC End
2025-08-15 02:53:40.955
MJD Start
60902.120316613
MJD End
60902.1206129093
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.001756
Ambient temperature (°C)
11.0
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 63.2020 63.1400 281.4000 281.5000
K0-D0 89.6410 89.5590 259.3000 259.4000
K0-J3 55.6360 55.6300 344.5140 344.5950
G2-D0 39.1210 39.1070 221.9000 221.9000
G2-J3 62.5380 62.5090 48.8710 48.9040
D0-J3 101.4810 101.4380 46.1890 46.2230
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 60902.120316613
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 63.202
HIERARCH ESO ISS PBL12 END 63.14
HIERARCH ESO ISS PBLA12 START 281.4
HIERARCH ESO ISS PBLA12 END 281.5
HIERARCH ESO ISS PBL13 START 89.641
HIERARCH ESO ISS PBL13 END 89.559
HIERARCH ESO ISS PBLA13 START 259.3
HIERARCH ESO ISS PBLA13 END 259.4
HIERARCH ESO ISS PBL14 START 55.636
HIERARCH ESO ISS PBL14 END 55.63
HIERARCH ESO ISS PBLA14 START 344.514
HIERARCH ESO ISS PBLA14 END 344.595
HIERARCH ESO ISS PBL23 START 39.121
HIERARCH ESO ISS PBL23 END 39.107
HIERARCH ESO ISS PBLA23 START 221.9
HIERARCH ESO ISS PBLA23 END 221.9
HIERARCH ESO ISS PBL24 START 62.538
HIERARCH ESO ISS PBL24 END 62.509
HIERARCH ESO ISS PBLA24 START 48.871
HIERARCH ESO ISS PBLA24 END 48.904
HIERARCH ESO ISS PBL34 START 101.481
HIERARCH ESO ISS PBL34 END 101.438
HIERARCH ESO ISS PBLA34 START 46.189
HIERARCH ESO ISS PBLA34 END 46.223
HIERARCH ESO ISS AMBI TAU0 START 0.001756
HIERARCH ESO ISS AMBI TAU0 END 0.001756
HIERARCH ESO ISS AMBI TEMP 11.0
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.23