Exposure
ID
PIONI.2025-08-22T01:00:15.387_1
Header ID
PIONI.2025-08-22T01:00:15.387
Date updated
2025-08-22 01:11:35 UTC+0000
Release date
2025-08-22 01:00:15 UTC+0000
UTC Start
2025-08-22 01:00:15.387
UTC End
2025-08-22 01:00:40.987
MJD Start
60909.0418447591
MJD End
60909.0421410554
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 68.1400 68.1310 51.8000 51.8000
A0-J2 129.1330 129.1200 94.2000 94.2000
A0-J3 132.0190 132.0010 47.3030 47.3680
G2-J2 91.2110 91.2110 124.4000 124.5000
G2-J3 64.3050 64.2970 42.5680 42.6320
J2-J3 103.8590 103.8630 342.1900 342.2560
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 60909.0418447591
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 68.14
HIERARCH ESO ISS PBL12 END 68.131
HIERARCH ESO ISS PBLA12 START 51.8
HIERARCH ESO ISS PBLA12 END 51.8
HIERARCH ESO ISS PBL13 START 129.133
HIERARCH ESO ISS PBL13 END 129.12
HIERARCH ESO ISS PBLA13 START 94.2
HIERARCH ESO ISS PBLA13 END 94.2
HIERARCH ESO ISS PBL14 START 132.019
HIERARCH ESO ISS PBL14 END 132.001
HIERARCH ESO ISS PBLA14 START 47.303
HIERARCH ESO ISS PBLA14 END 47.368
HIERARCH ESO ISS PBL23 START 91.211
HIERARCH ESO ISS PBL23 END 91.211
HIERARCH ESO ISS PBLA23 START 124.4
HIERARCH ESO ISS PBLA23 END 124.5
HIERARCH ESO ISS PBL24 START 64.305
HIERARCH ESO ISS PBL24 END 64.297
HIERARCH ESO ISS PBLA24 START 42.568
HIERARCH ESO ISS PBLA24 END 42.632
HIERARCH ESO ISS PBL34 START 103.859
HIERARCH ESO ISS PBL34 END 103.863
HIERARCH ESO ISS PBLA34 START 342.19
HIERARCH ESO ISS PBLA34 END 342.256
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