Exposure
ID
PIONI.2025-09-21T02:38:16.412_1
Header ID
PIONI.2025-09-21T02:38:16.412
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 02:38:16.412
UTC End
2025-09-21 02:38:54.812
MJD Start
60939.1099121794
MJD End
60939.110356623845
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0020959999999999998
Ambient temperature (°C)
11.97
Seeing (arcsec)
0.66
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 72.9050 72.8010 144.3000 144.5000
A0-J2 93.9870 93.7190 115.3000 115.5000
A0-K0 94.6080 94.3210 85.4730 85.5330
G1-J2 46.4830 46.3760 65.9000 65.9000
G1-K0 84.4240 84.3580 37.8310 37.8460
J2-K0 48.5840 48.5860 11.1050 11.1880
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 60939.1099121794
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 72.905
HIERARCH ESO ISS PBL12 END 72.801
HIERARCH ESO ISS PBLA12 START 144.3
HIERARCH ESO ISS PBLA12 END 144.5
HIERARCH ESO ISS PBL13 START 93.987
HIERARCH ESO ISS PBL13 END 93.719
HIERARCH ESO ISS PBLA13 START 115.3
HIERARCH ESO ISS PBLA13 END 115.5
HIERARCH ESO ISS PBL14 START 94.608
HIERARCH ESO ISS PBL14 END 94.321
HIERARCH ESO ISS PBLA14 START 85.473
HIERARCH ESO ISS PBLA14 END 85.533
HIERARCH ESO ISS PBL23 START 46.483
HIERARCH ESO ISS PBL23 END 46.376
HIERARCH ESO ISS PBLA23 START 65.9
HIERARCH ESO ISS PBLA23 END 65.9
HIERARCH ESO ISS PBL24 START 84.424
HIERARCH ESO ISS PBL24 END 84.358
HIERARCH ESO ISS PBLA24 START 37.831
HIERARCH ESO ISS PBLA24 END 37.846
HIERARCH ESO ISS PBL34 START 48.584
HIERARCH ESO ISS PBL34 END 48.586
HIERARCH ESO ISS PBLA34 START 11.105
HIERARCH ESO ISS PBLA34 END 11.188
HIERARCH ESO ISS AMBI TAU0 START 0.001982
HIERARCH ESO ISS AMBI TAU0 END 0.00221
HIERARCH ESO ISS AMBI TEMP 11.97
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.66