Exposure
ID
PIONI.2025-07-23T02:22:27.674_1
Header ID
PIONI.2025-07-23T02:22:27.674
Date updated
2025-07-23 02:30:52 UTC+0000
Release date
2025-07-23 02:22:27 UTC+0000
UTC Start
2025-07-23 02:22:27.674
UTC End
2025-07-23 02:22:53.274
MJD Start
60879.0989314136
MJD End
60879.0992277099
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003922
Ambient temperature (°C)
13.11
Seeing (arcsec)
1.41
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 90.1700 90.1500 113.5000 113.5000
A0-J2 128.6970 128.7280 92.7000 92.6000
A0-K0 124.0770 124.1550 72.4650 72.4740
G1-J2 54.8290 54.8720 56.8000 56.8000
G1-K0 81.5560 81.6010 25.9010 25.9640
J2-K0 44.5330 44.5210 346.6910 346.7530
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 60879.0989314136
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 90.17
HIERARCH ESO ISS PBL12 END 90.15
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 128.697
HIERARCH ESO ISS PBL13 END 128.728
HIERARCH ESO ISS PBLA13 START 92.7
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 124.077
HIERARCH ESO ISS PBL14 END 124.155
HIERARCH ESO ISS PBLA14 START 72.465
HIERARCH ESO ISS PBLA14 END 72.474
HIERARCH ESO ISS PBL23 START 54.829
HIERARCH ESO ISS PBL23 END 54.872
HIERARCH ESO ISS PBLA23 START 56.8
HIERARCH ESO ISS PBLA23 END 56.8
HIERARCH ESO ISS PBL24 START 81.556
HIERARCH ESO ISS PBL24 END 81.601
HIERARCH ESO ISS PBLA24 START 25.901
HIERARCH ESO ISS PBLA24 END 25.964
HIERARCH ESO ISS PBL34 START 44.533
HIERARCH ESO ISS PBL34 END 44.521
HIERARCH ESO ISS PBLA34 START 346.691
HIERARCH ESO ISS PBLA34 END 346.753
HIERARCH ESO ISS AMBI TAU0 START 0.003922
HIERARCH ESO ISS AMBI TAU0 END 0.003922
HIERARCH ESO ISS AMBI TEMP 13.11
HIERARCH ESO ISS AMBI FWHM START 1.41
HIERARCH ESO ISS AMBI FWHM END 1.41