Exposure
ID
PIONI.2025-05-31T08:11:00.606_1
Header ID
PIONI.2025-05-31T08:11:00.606
Date updated
2025-05-31 08:16:52 UTC+0000
Release date
2025-05-31 08:11:00 UTC+0000
UTC Start
2025-05-31 08:11:00.607
UTC End
2025-05-31 08:11:39.007
MJD Start
60826.3409792441
MJD End
60826.341423688544
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005268999999999999
Ambient temperature (°C)
14.99
Seeing (arcsec)
0.365
Observation
ID
67683
Category
calibrator
Program ID
115.283B.001
Program Title
WHAT MAKES THE SYMBIOTIC GIANT IN FG SER BREATHE?
Program Type
Normal
PI / COI
MERC / BOFFIN
Target
ID
50336
Name
HD 166235
RA
272.420295
DEC
0.82288
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 40.2640 40.2360 163.0000 163.1000
A0-J2 112.0790 111.8540 92.5000 92.5000
A0-J6 168.2610 168.3050 34.7170 34.7360
B5-J2 105.6910 105.5680 71.4000 71.4000
B5-J6 195.7710 195.8450 25.4240 25.4670
J2-J6 144.0820 144.0480 353.5620 353.6790
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.283B.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60826.3409792441
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 166235
RA 272.420295
DEC 0.82288
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 40.264
HIERARCH ESO ISS PBL12 END 40.236
HIERARCH ESO ISS PBLA12 START 163.0
HIERARCH ESO ISS PBLA12 END 163.1
HIERARCH ESO ISS PBL13 START 112.079
HIERARCH ESO ISS PBL13 END 111.854
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 168.261
HIERARCH ESO ISS PBL14 END 168.305
HIERARCH ESO ISS PBLA14 START 34.717
HIERARCH ESO ISS PBLA14 END 34.736
HIERARCH ESO ISS PBL23 START 105.691
HIERARCH ESO ISS PBL23 END 105.568
HIERARCH ESO ISS PBLA23 START 71.4
HIERARCH ESO ISS PBLA23 END 71.4
HIERARCH ESO ISS PBL24 START 195.771
HIERARCH ESO ISS PBL24 END 195.845
HIERARCH ESO ISS PBLA24 START 25.424
HIERARCH ESO ISS PBLA24 END 25.467
HIERARCH ESO ISS PBL34 START 144.082
HIERARCH ESO ISS PBL34 END 144.048
HIERARCH ESO ISS PBLA34 START 353.562
HIERARCH ESO ISS PBLA34 END 353.679
HIERARCH ESO ISS AMBI TAU0 START 0.005521
HIERARCH ESO ISS AMBI TAU0 END 0.005017
HIERARCH ESO ISS AMBI TEMP 14.99
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.34