Exposure
ID
PIONI.2025-07-23T02:58:33.476_1
Header ID
PIONI.2025-07-23T02:58:33.476
Date updated
2025-07-23 03:05:56 UTC+0000
Release date
2025-07-23 02:58:33 UTC+0000
UTC Start
2025-07-23 02:58:33.476
UTC End
2025-07-23 02:59:11.876
MJD Start
60879.1239985619
MJD End
60879.124443006345
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006257
Ambient temperature (°C)
14.55
Seeing (arcsec)
0.5
Observation
ID
68886
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
51250
Name
HD 166235
RA
272.41974
DEC
0.82288
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 88.1020 88.0350 114.0000 114.0000
A0-J2 128.9510 128.9200 92.5000 92.5000
A0-K0 127.3810 127.4210 72.8060 72.8080
G1-J2 56.9470 56.9830 58.1000 58.1000
G1-K0 84.2070 84.2630 29.2770 29.3420
J2-K0 43.9020 43.8900 350.6370 350.7290
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 60879.1239985619
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 166235
RA 272.41974
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 88.102
HIERARCH ESO ISS PBL12 END 88.035
HIERARCH ESO ISS PBLA12 START 114.0
HIERARCH ESO ISS PBLA12 END 114.0
HIERARCH ESO ISS PBL13 START 128.951
HIERARCH ESO ISS PBL13 END 128.92
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 127.381
HIERARCH ESO ISS PBL14 END 127.421
HIERARCH ESO ISS PBLA14 START 72.806
HIERARCH ESO ISS PBLA14 END 72.808
HIERARCH ESO ISS PBL23 START 56.947
HIERARCH ESO ISS PBL23 END 56.983
HIERARCH ESO ISS PBLA23 START 58.1
HIERARCH ESO ISS PBLA23 END 58.1
HIERARCH ESO ISS PBL24 START 84.207
HIERARCH ESO ISS PBL24 END 84.263
HIERARCH ESO ISS PBLA24 START 29.277
HIERARCH ESO ISS PBLA24 END 29.342
HIERARCH ESO ISS PBL34 START 43.902
HIERARCH ESO ISS PBL34 END 43.89
HIERARCH ESO ISS PBLA34 START 350.637
HIERARCH ESO ISS PBLA34 END 350.729
HIERARCH ESO ISS AMBI TAU0 START 0.006442
HIERARCH ESO ISS AMBI TAU0 END 0.006072
HIERARCH ESO ISS AMBI TEMP 14.55
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.5