Exposure
ID
PIONI.2025-08-21T23:56:53.593_1
Header ID
PIONI.2025-08-21T23:56:53.593
Date updated
2025-08-22 00:05:57 UTC+0000
Release date
2025-08-21 23:56:53 UTC+0000
UTC Start
2025-08-21 23:56:53.592
UTC End
2025-08-21 23:57:31.992
MJD Start
60908.9978425056
MJD End
60908.998286950045
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.81
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 67.9640 67.9790 44.0000 44.2000
A0-J2 126.5680 126.6500 86.6000 86.7000
A0-J3 131.8840 131.9080 39.6420 39.7550
G2-J2 89.2160 89.2690 117.6000 117.6000
G2-J3 64.3320 64.3400 34.9970 35.1090
J2-J3 103.0100 103.0280 335.8180 335.8960
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 60908.9978425056
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 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 67.964
HIERARCH ESO ISS PBL12 END 67.979
HIERARCH ESO ISS PBLA12 START 44.0
HIERARCH ESO ISS PBLA12 END 44.2
HIERARCH ESO ISS PBL13 START 126.568
HIERARCH ESO ISS PBL13 END 126.65
HIERARCH ESO ISS PBLA13 START 86.6
HIERARCH ESO ISS PBLA13 END 86.7
HIERARCH ESO ISS PBL14 START 131.884
HIERARCH ESO ISS PBL14 END 131.908
HIERARCH ESO ISS PBLA14 START 39.642
HIERARCH ESO ISS PBLA14 END 39.755
HIERARCH ESO ISS PBL23 START 89.216
HIERARCH ESO ISS PBL23 END 89.269
HIERARCH ESO ISS PBLA23 START 117.6
HIERARCH ESO ISS PBLA23 END 117.6
HIERARCH ESO ISS PBL24 START 64.332
HIERARCH ESO ISS PBL24 END 64.34
HIERARCH ESO ISS PBLA24 START 34.997
HIERARCH ESO ISS PBLA24 END 35.109
HIERARCH ESO ISS PBL34 START 103.01
HIERARCH ESO ISS PBL34 END 103.028
HIERARCH ESO ISS PBLA34 START 335.818
HIERARCH ESO ISS PBLA34 END 335.896
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.81
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76