Exposure
ID
PIONI.2025-08-22T01:32:37.532_1
Header ID
PIONI.2025-08-22T01:32:37.532
Date updated
2025-08-22 01:40:43 UTC+0000
Release date
2025-08-22 01:32:37 UTC+0000
UTC Start
2025-08-22 01:32:37.532
UTC End
2025-08-22 01:33:03.132
MJD Start
60909.0643232865
MJD End
60909.064619582794
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002151
Ambient temperature (°C)
7.44
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 67.2800 67.2570 55.1000 55.2000
A0-J2 127.5070 127.4590 98.1000 98.2000
A0-J3 130.4710 130.4300 50.5910 50.6480
G2-J2 90.7580 90.7410 128.5000 128.6000
G2-J3 63.6210 63.6030 45.8130 45.8700
J2-J3 103.9740 103.9750 345.8440 345.9140
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 60909.0643232865
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 67.28
HIERARCH ESO ISS PBL12 END 67.257
HIERARCH ESO ISS PBLA12 START 55.1
HIERARCH ESO ISS PBLA12 END 55.2
HIERARCH ESO ISS PBL13 START 127.507
HIERARCH ESO ISS PBL13 END 127.459
HIERARCH ESO ISS PBLA13 START 98.1
HIERARCH ESO ISS PBLA13 END 98.2
HIERARCH ESO ISS PBL14 START 130.471
HIERARCH ESO ISS PBL14 END 130.43
HIERARCH ESO ISS PBLA14 START 50.591
HIERARCH ESO ISS PBLA14 END 50.648
HIERARCH ESO ISS PBL23 START 90.758
HIERARCH ESO ISS PBL23 END 90.741
HIERARCH ESO ISS PBLA23 START 128.5
HIERARCH ESO ISS PBLA23 END 128.6
HIERARCH ESO ISS PBL24 START 63.621
HIERARCH ESO ISS PBL24 END 63.603
HIERARCH ESO ISS PBLA24 START 45.813
HIERARCH ESO ISS PBLA24 END 45.87
HIERARCH ESO ISS PBL34 START 103.974
HIERARCH ESO ISS PBL34 END 103.975
HIERARCH ESO ISS PBLA34 START 345.844
HIERARCH ESO ISS PBLA34 END 345.914
HIERARCH ESO ISS AMBI TAU0 START 0.002151
HIERARCH ESO ISS AMBI TAU0 END 0.002151
HIERARCH ESO ISS AMBI TEMP 7.44
HIERARCH ESO ISS AMBI FWHM START 1.76
HIERARCH ESO ISS AMBI FWHM END 1.76