Exposure
ID
PIONI.2025-08-17T01:55:13.714_1
Header ID
PIONI.2025-08-17T01:55:13.714
Date updated
2025-08-17 02:00:52 UTC+0000
Release date
2026-08-17 02:00:52 UTC+0000
UTC Start
2025-08-17 01:55:13.714
UTC End
2025-08-17 01:55:39.314
MJD Start
60904.0800198382
MJD End
60904.080316134496
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002256
Ambient temperature (°C)
11.16
Seeing (arcsec)
0.7
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 67.1210 67.0900 276.1000 276.1000
K0-D0 94.6380 94.6010 255.2000 255.3000
K0-J3 56.1830 56.1770 338.0870 338.1590
G2-D0 39.8680 39.8630 218.4000 218.5000
G2-J3 64.1950 64.1830 45.4870 45.5340
D0-J3 103.8750 103.8590 42.7780 42.8250
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 60904.0800198382
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 67.121
HIERARCH ESO ISS PBL12 END 67.09
HIERARCH ESO ISS PBLA12 START 276.1
HIERARCH ESO ISS PBLA12 END 276.1
HIERARCH ESO ISS PBL13 START 94.638
HIERARCH ESO ISS PBL13 END 94.601
HIERARCH ESO ISS PBLA13 START 255.2
HIERARCH ESO ISS PBLA13 END 255.3
HIERARCH ESO ISS PBL14 START 56.183
HIERARCH ESO ISS PBL14 END 56.177
HIERARCH ESO ISS PBLA14 START 338.087
HIERARCH ESO ISS PBLA14 END 338.159
HIERARCH ESO ISS PBL23 START 39.868
HIERARCH ESO ISS PBL23 END 39.863
HIERARCH ESO ISS PBLA23 START 218.4
HIERARCH ESO ISS PBLA23 END 218.5
HIERARCH ESO ISS PBL24 START 64.195
HIERARCH ESO ISS PBL24 END 64.183
HIERARCH ESO ISS PBLA24 START 45.487
HIERARCH ESO ISS PBLA24 END 45.534
HIERARCH ESO ISS PBL34 START 103.875
HIERARCH ESO ISS PBL34 END 103.859
HIERARCH ESO ISS PBLA34 START 42.778
HIERARCH ESO ISS PBLA34 END 42.825
HIERARCH ESO ISS AMBI TAU0 START 0.002256
HIERARCH ESO ISS AMBI TAU0 END 0.002256
HIERARCH ESO ISS AMBI TEMP 11.16
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7