Exposure
ID
PIONI.2025-08-17T01:57:43.701_1
Header ID
PIONI.2025-08-17T01:57:43.701
Date updated
2025-08-17 02:05:49 UTC+0000
Release date
2026-08-17 02:05:49 UTC+0000
UTC Start
2025-08-17 01:57:43.701
UTC End
2025-08-17 01:58:09.301
MJD Start
60904.0817557978
MJD End
60904.0820520941
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002256
Ambient temperature (°C)
11.02
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 66.9880 66.9550 276.3000 276.4000
K0-D0 94.4770 94.4370 255.4000 255.5000
K0-J3 56.1580 56.1520 338.3880 338.4600
G2-D0 39.8480 39.8430 218.6000 218.7000
G2-J3 64.1470 64.1350 45.6820 45.7290
D0-J3 103.8080 103.7910 42.9740 43.0210
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 60904.0817557978
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 66.988
HIERARCH ESO ISS PBL12 END 66.955
HIERARCH ESO ISS PBLA12 START 276.3
HIERARCH ESO ISS PBLA12 END 276.4
HIERARCH ESO ISS PBL13 START 94.477
HIERARCH ESO ISS PBL13 END 94.437
HIERARCH ESO ISS PBLA13 START 255.4
HIERARCH ESO ISS PBLA13 END 255.5
HIERARCH ESO ISS PBL14 START 56.158
HIERARCH ESO ISS PBL14 END 56.152
HIERARCH ESO ISS PBLA14 START 338.388
HIERARCH ESO ISS PBLA14 END 338.46
HIERARCH ESO ISS PBL23 START 39.848
HIERARCH ESO ISS PBL23 END 39.843
HIERARCH ESO ISS PBLA23 START 218.6
HIERARCH ESO ISS PBLA23 END 218.7
HIERARCH ESO ISS PBL24 START 64.147
HIERARCH ESO ISS PBL24 END 64.135
HIERARCH ESO ISS PBLA24 START 45.682
HIERARCH ESO ISS PBLA24 END 45.729
HIERARCH ESO ISS PBL34 START 103.808
HIERARCH ESO ISS PBL34 END 103.791
HIERARCH ESO ISS PBLA34 START 42.974
HIERARCH ESO ISS PBLA34 END 43.021
HIERARCH ESO ISS AMBI TAU0 START 0.002256
HIERARCH ESO ISS AMBI TAU0 END 0.002256
HIERARCH ESO ISS AMBI TEMP 11.02
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7