Exposure
ID
PIONI.2025-09-21T23:58:24.665_1
Header ID
PIONI.2025-09-21T23:58:24.665
Date updated
2025-09-22 00:05:58 UTC+0000
Release date
2025-09-21 23:58:24 UTC+0000
UTC Start
2025-09-21 23:58:24.666
UTC End
2025-09-21 23:59:03.066
MJD Start
60939.9988965946
MJD End
60939.999341039045
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004405
Ambient temperature (°C)
11.73
Seeing (arcsec)
0.745
Observation
ID
70482
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
52265
Name
HD 166562
RA
272.817293
DEC
-0.65932
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 81.4870 81.3600 116.6000 116.7000
A0-J2 122.7100 122.5650 92.9000 92.9000
A0-K0 126.4760 126.4090 72.7050 72.6980
G1-J2 58.2180 58.2140 58.6000 58.6000
G1-K0 88.2860 88.3250 32.8740 32.9150
J2-K0 43.8940 43.8910 357.6540 357.7540
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 60939.9988965946
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 166562
RA 272.817293
DEC -0.65932
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 81.487
HIERARCH ESO ISS PBL12 END 81.36
HIERARCH ESO ISS PBLA12 START 116.6
HIERARCH ESO ISS PBLA12 END 116.7
HIERARCH ESO ISS PBL13 START 122.71
HIERARCH ESO ISS PBL13 END 122.565
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 126.476
HIERARCH ESO ISS PBL14 END 126.409
HIERARCH ESO ISS PBLA14 START 72.705
HIERARCH ESO ISS PBLA14 END 72.698
HIERARCH ESO ISS PBL23 START 58.218
HIERARCH ESO ISS PBL23 END 58.214
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 88.286
HIERARCH ESO ISS PBL24 END 88.325
HIERARCH ESO ISS PBLA24 START 32.874
HIERARCH ESO ISS PBLA24 END 32.915
HIERARCH ESO ISS PBL34 START 43.894
HIERARCH ESO ISS PBL34 END 43.891
HIERARCH ESO ISS PBLA34 START 357.654
HIERARCH ESO ISS PBLA34 END 357.754
HIERARCH ESO ISS AMBI TAU0 START 0.004405
HIERARCH ESO ISS AMBI TAU0 END 0.004405
HIERARCH ESO ISS AMBI TEMP 11.73
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.72