Exposure
ID
PIONI.2025-08-22T00:59:37.538_1
Header ID
PIONI.2025-08-22T00:59:37.538
Date updated
2025-08-22 01:06:17 UTC+0000
Release date
2025-08-22 00:59:37 UTC+0000
UTC Start
2025-08-22 00:59:37.538
UTC End
2025-08-22 01:00:03.138
MJD Start
60909.041406686
MJD End
60909.0417029823
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.57
Seeing (arcsec)
1.76
Observation
ID
70056
Category
calibrator
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
51944
Name
HD 165634
RA
272.020899
DEC
-28.45727
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G2 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G2 68.1500 68.1410 51.7000 51.8000
A0-J2 129.1450 129.1330 94.1000 94.2000
A0-J3 132.0370 132.0200 47.2340 47.2990
G2-J2 91.2110 91.2110 124.3000 124.4000
G2-J3 64.3140 64.3060 42.5000 42.5640
J2-J3 103.8550 103.8590 342.1210 342.1870
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27VC.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60909.041406686
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 165634
RA 272.020899
DEC -28.45727
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 A0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J3
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 68.15
HIERARCH ESO ISS PBL12 END 68.141
HIERARCH ESO ISS PBLA12 START 51.7
HIERARCH ESO ISS PBLA12 END 51.8
HIERARCH ESO ISS PBL13 START 129.145
HIERARCH ESO ISS PBL13 END 129.133
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.2
HIERARCH ESO ISS PBL14 START 132.037
HIERARCH ESO ISS PBL14 END 132.02
HIERARCH ESO ISS PBLA14 START 47.234
HIERARCH ESO ISS PBLA14 END 47.299
HIERARCH ESO ISS PBL23 START 91.211
HIERARCH ESO ISS PBL23 END 91.211
HIERARCH ESO ISS PBLA23 START 124.3
HIERARCH ESO ISS PBLA23 END 124.4
HIERARCH ESO ISS PBL24 START 64.314
HIERARCH ESO ISS PBL24 END 64.306
HIERARCH ESO ISS PBLA24 START 42.5
HIERARCH ESO ISS PBLA24 END 42.564
HIERARCH ESO ISS PBL34 START 103.855
HIERARCH ESO ISS PBL34 END 103.859
HIERARCH ESO ISS PBLA34 START 342.121
HIERARCH ESO ISS PBLA34 END 342.187
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.57
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76