Exposure
ID
PIONI.2025-08-21T02:20:28.162_1
Header ID
PIONI.2025-08-21T02:20:28.162
Date updated
2025-08-21 02:30:44 UTC+0000
Release date
2025-08-21 02:20:28 UTC+0000
UTC Start
2025-08-21 02:20:28.162
UTC End
2025-08-21 02:20:53.762
MJD Start
60908.0975481747
MJD End
60908.097844471
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
10.56
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 64.9100 64.8680 59.0000 59.1000
A0-J2 122.2840 122.1900 103.8000 103.9000
A0-J3 126.2740 126.1980 54.4120 54.4590
G2-J2 88.8910 88.8570 134.8000 134.9000
G2-J3 61.7960 61.7640 49.5540 49.6000
J2-J3 103.9680 103.9670 351.1180 351.1920
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 60908.0975481747
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 64.91
HIERARCH ESO ISS PBL12 END 64.868
HIERARCH ESO ISS PBLA12 START 59.0
HIERARCH ESO ISS PBLA12 END 59.1
HIERARCH ESO ISS PBL13 START 122.284
HIERARCH ESO ISS PBL13 END 122.19
HIERARCH ESO ISS PBLA13 START 103.8
HIERARCH ESO ISS PBLA13 END 103.9
HIERARCH ESO ISS PBL14 START 126.274
HIERARCH ESO ISS PBL14 END 126.198
HIERARCH ESO ISS PBLA14 START 54.412
HIERARCH ESO ISS PBLA14 END 54.459
HIERARCH ESO ISS PBL23 START 88.891
HIERARCH ESO ISS PBL23 END 88.857
HIERARCH ESO ISS PBLA23 START 134.8
HIERARCH ESO ISS PBLA23 END 134.9
HIERARCH ESO ISS PBL24 START 61.796
HIERARCH ESO ISS PBL24 END 61.764
HIERARCH ESO ISS PBLA24 START 49.554
HIERARCH ESO ISS PBLA24 END 49.6
HIERARCH ESO ISS PBL34 START 103.968
HIERARCH ESO ISS PBL34 END 103.967
HIERARCH ESO ISS PBLA34 START 351.118
HIERARCH ESO ISS PBLA34 END 351.192
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 10.56
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76