Exposure
ID
PIONI.2025-07-21T06:41:11.469_1
Header ID
PIONI.2025-07-21T06:41:11.469
Date updated
2025-07-21 06:45:48 UTC+0000
Release date
2026-07-21 06:45:48 UTC+0000
UTC Start
2025-07-21 06:41:11.469
UTC End
2025-07-21 06:41:49.869
MJD Start
60877.2786049685
MJD End
60877.279049412944
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0053165
Ambient temperature (°C)
14.82
Seeing (arcsec)
0.46499999999999997
Observation
ID
68861
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51230
Name
HD173282
RA
281.326708
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 73.0150 72.9120 144.1000 144.3000
A0-J2 94.2670 94.0050 115.2000 115.3000
A0-K0 94.9080 94.6280 85.4110 85.4690
G1-J2 46.5950 46.4910 65.9000 65.9000
G1-K0 84.4940 84.4290 37.8150 37.8300
J2-K0 48.5830 48.5840 11.0180 11.1000
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 60877.2786049685
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD173282
RA 281.326708
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 73.015
HIERARCH ESO ISS PBL12 END 72.912
HIERARCH ESO ISS PBLA12 START 144.1
HIERARCH ESO ISS PBLA12 END 144.3
HIERARCH ESO ISS PBL13 START 94.267
HIERARCH ESO ISS PBL13 END 94.005
HIERARCH ESO ISS PBLA13 START 115.2
HIERARCH ESO ISS PBLA13 END 115.3
HIERARCH ESO ISS PBL14 START 94.908
HIERARCH ESO ISS PBL14 END 94.628
HIERARCH ESO ISS PBLA14 START 85.411
HIERARCH ESO ISS PBLA14 END 85.469
HIERARCH ESO ISS PBL23 START 46.595
HIERARCH ESO ISS PBL23 END 46.491
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 84.429
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 11.018
HIERARCH ESO ISS PBLA34 END 11.1
HIERARCH ESO ISS AMBI TAU0 START 0.005426
HIERARCH ESO ISS AMBI TAU0 END 0.005207
HIERARCH ESO ISS AMBI TEMP 14.82
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.47