Exposure
ID
PIONI.2025-06-02T03:58:59.443_1
Header ID
PIONI.2025-06-02T03:58:59.443
Date updated
2025-06-02 04:12:11 UTC+0000
Release date
2026-06-02 04:12:11 UTC+0000
UTC Start
2025-06-02 03:58:59.443
UTC End
2025-06-02 03:59:37.843
MJD Start
60828.1659657718
MJD End
60828.16641021624
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0042055
Ambient temperature (°C)
11.17
Seeing (arcsec)
0.96
Observation
ID
67689
Category
science
Program ID
115.28F2.002
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
50341
Name
HD172103
RA
279.578603
DEC
-1.11299
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.6230 48.6270 143.1000 143.1000
A0-J2 101.1290 101.4160 92.4000 92.4000
A0-J6 141.4310 141.4710 6.7940 6.9340
B5-J2 79.7270 79.9800 64.3000 64.4000
B5-J6 179.7320 179.7100 356.0160 356.1250
J2-J6 167.4430 167.4190 329.7730 329.7930
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60828.1659657718
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD172103
RA 279.578603
DEC -1.11299
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.623
HIERARCH ESO ISS PBL12 END 48.627
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 101.129
HIERARCH ESO ISS PBL13 END 101.416
HIERARCH ESO ISS PBLA13 START 92.4
HIERARCH ESO ISS PBLA13 END 92.4
HIERARCH ESO ISS PBL14 START 141.431
HIERARCH ESO ISS PBL14 END 141.471
HIERARCH ESO ISS PBLA14 START 6.794
HIERARCH ESO ISS PBLA14 END 6.934
HIERARCH ESO ISS PBL23 START 79.727
HIERARCH ESO ISS PBL23 END 79.98
HIERARCH ESO ISS PBLA23 START 64.3
HIERARCH ESO ISS PBLA23 END 64.4
HIERARCH ESO ISS PBL24 START 179.732
HIERARCH ESO ISS PBL24 END 179.71
HIERARCH ESO ISS PBLA24 START 356.016
HIERARCH ESO ISS PBLA24 END 356.125
HIERARCH ESO ISS PBL34 START 167.443
HIERARCH ESO ISS PBL34 END 167.419
HIERARCH ESO ISS PBLA34 START 329.773
HIERARCH ESO ISS PBLA34 END 329.793
HIERARCH ESO ISS AMBI TAU0 START 0.004085
HIERARCH ESO ISS AMBI TAU0 END 0.004326
HIERARCH ESO ISS AMBI TEMP 11.17
HIERARCH ESO ISS AMBI FWHM START 1.05
HIERARCH ESO ISS AMBI FWHM END 0.87