Exposure
ID
PIONI.2025-05-31T09:41:32.736_1
Header ID
PIONI.2025-05-31T09:41:32.736
Date updated
2025-05-31 09:56:07 UTC+0000
Release date
2025-05-31 09:41:32 UTC+0000
UTC Start
2025-05-31 09:41:32.736
UTC End
2025-05-31 09:42:11.136
MJD Start
60826.4038511072
MJD End
60826.40429555164
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0067965000000000005
Ambient temperature (°C)
14.96
Seeing (arcsec)
0.27
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 38.4720 38.4710 179.2000 179.3000
A0-J2 78.6420 78.2750 93.2000 93.2000
A0-J6 168.8870 168.8530 34.6970 34.6770
B5-J2 85.1280 84.8900 66.4000 66.3000
B5-J6 201.4500 201.4720 28.3270 28.3360
J2-J6 144.2600 144.2980 7.0060 7.1240
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 60826.4038511072
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 38.472
HIERARCH ESO ISS PBL12 END 38.471
HIERARCH ESO ISS PBLA12 START 179.2
HIERARCH ESO ISS PBLA12 END 179.3
HIERARCH ESO ISS PBL13 START 78.642
HIERARCH ESO ISS PBL13 END 78.275
HIERARCH ESO ISS PBLA13 START 93.2
HIERARCH ESO ISS PBLA13 END 93.2
HIERARCH ESO ISS PBL14 START 168.887
HIERARCH ESO ISS PBL14 END 168.853
HIERARCH ESO ISS PBLA14 START 34.697
HIERARCH ESO ISS PBLA14 END 34.677
HIERARCH ESO ISS PBL23 START 85.128
HIERARCH ESO ISS PBL23 END 84.89
HIERARCH ESO ISS PBLA23 START 66.4
HIERARCH ESO ISS PBLA23 END 66.3
HIERARCH ESO ISS PBL24 START 201.45
HIERARCH ESO ISS PBL24 END 201.472
HIERARCH ESO ISS PBLA24 START 28.327
HIERARCH ESO ISS PBLA24 END 28.336
HIERARCH ESO ISS PBL34 START 144.26
HIERARCH ESO ISS PBL34 END 144.298
HIERARCH ESO ISS PBLA34 START 7.006
HIERARCH ESO ISS PBLA34 END 7.124
HIERARCH ESO ISS AMBI TAU0 START 0.006553
HIERARCH ESO ISS AMBI TAU0 END 0.00704
HIERARCH ESO ISS AMBI TEMP 14.96
HIERARCH ESO ISS AMBI FWHM START 0.28
HIERARCH ESO ISS AMBI FWHM END 0.26