Exposure
ID
PIONI.2025-09-21T02:39:06.993_1
Header ID
PIONI.2025-09-21T02:39:06.993
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 02:39:06.993
UTC End
2025-09-21 02:39:45.393
MJD Start
60939.1104976046
MJD End
60939.11094204904
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.00221
Ambient temperature (°C)
11.99
Seeing (arcsec)
0.64
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 72.7990 72.6950 144.5000 144.7000
A0-J2 93.7140 93.4460 115.5000 115.6000
A0-K0 94.3150 94.0270 85.5340 85.5930
G1-J2 46.3740 46.2670 65.9000 65.9000
G1-K0 84.3560 84.2890 37.8460 37.8600
J2-K0 48.5860 48.5880 11.1900 11.2720
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 60939.1104976046
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 72.799
HIERARCH ESO ISS PBL12 END 72.695
HIERARCH ESO ISS PBLA12 START 144.5
HIERARCH ESO ISS PBLA12 END 144.7
HIERARCH ESO ISS PBL13 START 93.714
HIERARCH ESO ISS PBL13 END 93.446
HIERARCH ESO ISS PBLA13 START 115.5
HIERARCH ESO ISS PBLA13 END 115.6
HIERARCH ESO ISS PBL14 START 94.315
HIERARCH ESO ISS PBL14 END 94.027
HIERARCH ESO ISS PBLA14 START 85.534
HIERARCH ESO ISS PBLA14 END 85.593
HIERARCH ESO ISS PBL23 START 46.374
HIERARCH ESO ISS PBL23 END 46.267
HIERARCH ESO ISS PBLA23 START 65.9
HIERARCH ESO ISS PBLA23 END 65.9
HIERARCH ESO ISS PBL24 START 84.356
HIERARCH ESO ISS PBL24 END 84.289
HIERARCH ESO ISS PBLA24 START 37.846
HIERARCH ESO ISS PBLA24 END 37.86
HIERARCH ESO ISS PBL34 START 48.586
HIERARCH ESO ISS PBL34 END 48.588
HIERARCH ESO ISS PBLA34 START 11.19
HIERARCH ESO ISS PBLA34 END 11.272
HIERARCH ESO ISS AMBI TAU0 START 0.00221
HIERARCH ESO ISS AMBI TAU0 END 0.00221
HIERARCH ESO ISS AMBI TEMP 11.99
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.62