Exposure
ID
PIONI.2025-09-21T02:37:25.826_1
Header ID
PIONI.2025-09-21T02:37:25.826
Date updated
2025-09-21 02:46:00 UTC+0000
Release date
2026-09-21 02:46:00 UTC+0000
UTC Start
2025-09-21 02:37:25.826
UTC End
2025-09-21 02:38:04.226
MJD Start
60939.1093266937
MJD End
60939.109771138144
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.001982
Ambient temperature (°C)
11.98
Seeing (arcsec)
0.72
Observation
ID
70144
Category
science
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
52045
Name
HD173282
RA
281.326709
DEC
-21.00179
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 73.0140 72.9090 144.1000 144.3000
A0-J2 94.2650 93.9980 115.2000 115.3000
A0-K0 94.9060 94.6200 85.4110 85.4710
G1-J2 46.5940 46.4880 65.9000 65.9000
G1-K0 84.4940 84.4270 37.8150 37.8300
J2-K0 48.5830 48.5840 11.0190 11.1020
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60939.1093266937
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD173282
RA 281.326709
DEC -21.00179
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 73.014
HIERARCH ESO ISS PBL12 END 72.909
HIERARCH ESO ISS PBLA12 START 144.1
HIERARCH ESO ISS PBLA12 END 144.3
HIERARCH ESO ISS PBL13 START 94.265
HIERARCH ESO ISS PBL13 END 93.998
HIERARCH ESO ISS PBLA13 START 115.2
HIERARCH ESO ISS PBLA13 END 115.3
HIERARCH ESO ISS PBL14 START 94.906
HIERARCH ESO ISS PBL14 END 94.62
HIERARCH ESO ISS PBLA14 START 85.411
HIERARCH ESO ISS PBLA14 END 85.471
HIERARCH ESO ISS PBL23 START 46.594
HIERARCH ESO ISS PBL23 END 46.488
HIERARCH ESO ISS PBLA23 START 65.9
HIERARCH ESO ISS PBLA23 END 65.9
HIERARCH ESO ISS PBL24 START 84.494
HIERARCH ESO ISS PBL24 END 84.427
HIERARCH ESO ISS PBLA24 START 37.815
HIERARCH ESO ISS PBLA24 END 37.83
HIERARCH ESO ISS PBL34 START 48.583
HIERARCH ESO ISS PBL34 END 48.584
HIERARCH ESO ISS PBLA34 START 11.019
HIERARCH ESO ISS PBLA34 END 11.102
HIERARCH ESO ISS AMBI TAU0 START 0.001982
HIERARCH ESO ISS AMBI TAU0 END 0.001982
HIERARCH ESO ISS AMBI TEMP 11.98
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.66