Exposure
ID
PIONI.2025-07-23T02:56:02.245_1
Header ID
PIONI.2025-07-23T02:56:02.245
Date updated
2025-07-23 03:05:56 UTC+0000
Release date
2025-07-23 02:56:02 UTC+0000
UTC Start
2025-07-23 02:56:02.245
UTC End
2025-07-23 02:56:40.645
MJD Start
60879.1222482091
MJD End
60879.122692653546
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.00549
Ambient temperature (°C)
14.47
Seeing (arcsec)
0.64
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 88.3070 88.2420 113.9000 113.9000
A0-J2 129.0380 129.0110 92.5000 92.5000
A0-K0 127.2430 127.2890 72.7950 72.8030
G1-J2 56.8300 56.8680 58.0000 58.0000
G1-K0 84.0270 84.0850 29.0660 29.1390
J2-K0 43.9400 43.9280 350.3480 350.4460
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 60879.1222482091
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 88.307
HIERARCH ESO ISS PBL12 END 88.242
HIERARCH ESO ISS PBLA12 START 113.9
HIERARCH ESO ISS PBLA12 END 113.9
HIERARCH ESO ISS PBL13 START 129.038
HIERARCH ESO ISS PBL13 END 129.011
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 127.243
HIERARCH ESO ISS PBL14 END 127.289
HIERARCH ESO ISS PBLA14 START 72.795
HIERARCH ESO ISS PBLA14 END 72.803
HIERARCH ESO ISS PBL23 START 56.83
HIERARCH ESO ISS PBL23 END 56.868
HIERARCH ESO ISS PBLA23 START 58.0
HIERARCH ESO ISS PBLA23 END 58.0
HIERARCH ESO ISS PBL24 START 84.027
HIERARCH ESO ISS PBL24 END 84.085
HIERARCH ESO ISS PBLA24 START 29.066
HIERARCH ESO ISS PBLA24 END 29.139
HIERARCH ESO ISS PBL34 START 43.94
HIERARCH ESO ISS PBL34 END 43.928
HIERARCH ESO ISS PBLA34 START 350.348
HIERARCH ESO ISS PBLA34 END 350.446
HIERARCH ESO ISS AMBI TAU0 START 0.00549
HIERARCH ESO ISS AMBI TAU0 END 0.00549
HIERARCH ESO ISS AMBI TEMP 14.47
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.6