Exposure
ID
PIONI.2025-06-02T04:09:23.594_1
Header ID
PIONI.2025-06-02T04:09:23.594
Date updated
2025-06-02 04:17:33 UTC+0000
Release date
2025-06-02 04:09:23 UTC+0000
UTC Start
2025-06-02 04:09:23.594
UTC End
2025-06-02 04:10:01.994
MJD Start
60828.1731897453
MJD End
60828.17363418974
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004109
Ambient temperature (°C)
11.19
Seeing (arcsec)
0.75
Observation
ID
67690
Category
calibrator
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
50342
Name
HD170817
RA
277.856613
DEC
-0.28448
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 48.6480 48.6460 143.1000 143.1000
A0-J2 106.9630 107.2150 92.9000 92.9000
A0-J6 141.1190 141.1750 9.7820 9.9150
B5-J2 84.5100 84.7450 66.7000 66.7000
B5-J6 178.0370 178.0280 358.3130 358.4210
J2-J6 166.5620 166.5240 330.1770 330.2010
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60828.1731897453
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856613
DEC -0.28448
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 48.648
HIERARCH ESO ISS PBL12 END 48.646
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 106.963
HIERARCH ESO ISS PBL13 END 107.215
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 141.119
HIERARCH ESO ISS PBL14 END 141.175
HIERARCH ESO ISS PBLA14 START 9.782
HIERARCH ESO ISS PBLA14 END 9.915
HIERARCH ESO ISS PBL23 START 84.51
HIERARCH ESO ISS PBL23 END 84.745
HIERARCH ESO ISS PBLA23 START 66.7
HIERARCH ESO ISS PBLA23 END 66.7
HIERARCH ESO ISS PBL24 START 178.037
HIERARCH ESO ISS PBL24 END 178.028
HIERARCH ESO ISS PBLA24 START 358.313
HIERARCH ESO ISS PBLA24 END 358.421
HIERARCH ESO ISS PBL34 START 166.562
HIERARCH ESO ISS PBL34 END 166.524
HIERARCH ESO ISS PBLA34 START 330.177
HIERARCH ESO ISS PBLA34 END 330.201
HIERARCH ESO ISS AMBI TAU0 START 0.004109
HIERARCH ESO ISS AMBI TAU0 END 0.004109
HIERARCH ESO ISS AMBI TEMP 11.19
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.75