Exposure
ID
PIONI.2025-09-20T03:43:10.879_1
Header ID
PIONI.2025-09-20T03:43:10.879
Date updated
2025-09-20 03:50:51 UTC+0000
Release date
2025-09-20 03:43:10 UTC+0000
UTC Start
2025-09-20 03:43:10.880
UTC End
2025-09-20 03:43:49.280
MJD Start
60938.1549870316
MJD End
60938.15543147604
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002696
Ambient temperature (°C)
13.86
Seeing (arcsec)
0.8
Observation
ID
70466
Category
calibrator
Program ID
115.28F2.003
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52252
Name
HD220171
RA
350.432629
DEC
3.06034
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 89.9710 89.9390 113.3000 113.3000
A0-J2 128.7930 128.8290 92.8000 92.8000
A0-K0 123.8840 123.9910 73.0600 73.0630
G1-J2 54.4890 54.5490 57.6000 57.6000
G1-K0 80.1650 80.2300 26.5810 26.6640
J2-K0 43.6750 43.6580 346.5900 346.6750
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60938.1549870316
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD220171
RA 350.432629
DEC 3.06034
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 89.971
HIERARCH ESO ISS PBL12 END 89.939
HIERARCH ESO ISS PBLA12 START 113.3
HIERARCH ESO ISS PBLA12 END 113.3
HIERARCH ESO ISS PBL13 START 128.793
HIERARCH ESO ISS PBL13 END 128.829
HIERARCH ESO ISS PBLA13 START 92.8
HIERARCH ESO ISS PBLA13 END 92.8
HIERARCH ESO ISS PBL14 START 123.884
HIERARCH ESO ISS PBL14 END 123.991
HIERARCH ESO ISS PBLA14 START 73.06
HIERARCH ESO ISS PBLA14 END 73.063
HIERARCH ESO ISS PBL23 START 54.489
HIERARCH ESO ISS PBL23 END 54.549
HIERARCH ESO ISS PBLA23 START 57.6
HIERARCH ESO ISS PBLA23 END 57.6
HIERARCH ESO ISS PBL24 START 80.165
HIERARCH ESO ISS PBL24 END 80.23
HIERARCH ESO ISS PBLA24 START 26.581
HIERARCH ESO ISS PBLA24 END 26.664
HIERARCH ESO ISS PBL34 START 43.675
HIERARCH ESO ISS PBL34 END 43.658
HIERARCH ESO ISS PBLA34 START 346.59
HIERARCH ESO ISS PBLA34 END 346.675
HIERARCH ESO ISS AMBI TAU0 START 0.002906
HIERARCH ESO ISS AMBI TAU0 END 0.002486
HIERARCH ESO ISS AMBI TEMP 13.86
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.88