Exposure
ID
PIONI.2025-08-26T05:22:59.371_1
Header ID
PIONI.2025-08-26T05:22:59.371
Date updated
2025-08-26 05:41:36 UTC+0000
Release date
2026-08-26 05:41:36 UTC+0000
UTC Start
2025-08-26 05:22:59.370
UTC End
2025-08-26 05:23:37.770
MJD Start
60913.2242982662
MJD End
60913.22474271064
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0072865
Ambient temperature (°C)
13.93
Seeing (arcsec)
0.62
Observation
ID
70085
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
51998
Name
zetHor
RA
40.164424
DEC
-54.54988
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 31.8230 31.8900 118.9000 119.0000
A0-J2 111.3840 111.4770 42.8000 43.0000
A0-J6 160.1520 160.1590 356.4800 356.6050
B5-J2 108.2400 108.2670 26.2000 26.4000
B5-J6 179.2400 179.2800 347.8640 347.9700
J2-J6 115.8380 116.0250 312.4210 312.5040
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 60913.2242982662
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME zetHor
RA 40.164424
DEC -54.54988
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 31.823
HIERARCH ESO ISS PBL12 END 31.89
HIERARCH ESO ISS PBLA12 START 118.9
HIERARCH ESO ISS PBLA12 END 119.0
HIERARCH ESO ISS PBL13 START 111.384
HIERARCH ESO ISS PBL13 END 111.477
HIERARCH ESO ISS PBLA13 START 42.8
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 160.152
HIERARCH ESO ISS PBL14 END 160.159
HIERARCH ESO ISS PBLA14 START 356.48
HIERARCH ESO ISS PBLA14 END 356.605
HIERARCH ESO ISS PBL23 START 108.24
HIERARCH ESO ISS PBL23 END 108.267
HIERARCH ESO ISS PBLA23 START 26.2
HIERARCH ESO ISS PBLA23 END 26.4
HIERARCH ESO ISS PBL24 START 179.24
HIERARCH ESO ISS PBL24 END 179.28
HIERARCH ESO ISS PBLA24 START 347.864
HIERARCH ESO ISS PBLA24 END 347.97
HIERARCH ESO ISS PBL34 START 115.838
HIERARCH ESO ISS PBL34 END 116.025
HIERARCH ESO ISS PBLA34 START 312.421
HIERARCH ESO ISS PBLA34 END 312.504
HIERARCH ESO ISS AMBI TAU0 START 0.007803
HIERARCH ESO ISS AMBI TAU0 END 0.00677
HIERARCH ESO ISS AMBI TEMP 13.93
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.62