Exposure
ID
PIONI.2025-09-21T02:36:35.313_1
Header ID
PIONI.2025-09-21T02:36:35.313
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 02:36:35.313
UTC End
2025-09-21 02:37:13.713
MJD Start
60939.1087420532
MJD End
60939.10918649764
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0021444999999999997
Ambient temperature (°C)
11.98
Seeing (arcsec)
0.785
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 73.1210 73.0180 143.9000 144.1000
A0-J2 94.5370 94.2760 115.0000 115.2000
A0-K0 95.1970 94.9180 85.3500 85.4090
G1-J2 46.7030 46.5990 65.8000 65.9000
G1-K0 84.5610 84.4960 37.7990 37.8140
J2-K0 48.5810 48.5830 10.9340 11.0150
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 60939.1087420532
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 73.121
HIERARCH ESO ISS PBL12 END 73.018
HIERARCH ESO ISS PBLA12 START 143.9
HIERARCH ESO ISS PBLA12 END 144.1
HIERARCH ESO ISS PBL13 START 94.537
HIERARCH ESO ISS PBL13 END 94.276
HIERARCH ESO ISS PBLA13 START 115.0
HIERARCH ESO ISS PBLA13 END 115.2
HIERARCH ESO ISS PBL14 START 95.197
HIERARCH ESO ISS PBL14 END 94.918
HIERARCH ESO ISS PBLA14 START 85.35
HIERARCH ESO ISS PBLA14 END 85.409
HIERARCH ESO ISS PBL23 START 46.703
HIERARCH ESO ISS PBL23 END 46.599
HIERARCH ESO ISS PBLA23 START 65.8
HIERARCH ESO ISS PBLA23 END 65.9
HIERARCH ESO ISS PBL24 START 84.561
HIERARCH ESO ISS PBL24 END 84.496
HIERARCH ESO ISS PBLA24 START 37.799
HIERARCH ESO ISS PBLA24 END 37.814
HIERARCH ESO ISS PBL34 START 48.581
HIERARCH ESO ISS PBL34 END 48.583
HIERARCH ESO ISS PBLA34 START 10.934
HIERARCH ESO ISS PBLA34 END 11.015
HIERARCH ESO ISS AMBI TAU0 START 0.002307
HIERARCH ESO ISS AMBI TAU0 END 0.001982
HIERARCH ESO ISS AMBI TEMP 11.98
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.78