Exposure
ID
PIONI.2025-08-23T08:11:25.061_1
Header ID
PIONI.2025-08-23T08:11:25.061
Date updated
2025-08-23 08:16:02 UTC+0000
Release date
2026-08-23 08:16:01 UTC+0000
UTC Start
2025-08-23 08:11:25.061
UTC End
2025-08-23 08:12:03.461
MJD Start
60910.3412622847
MJD End
60910.341706729145
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002576
Ambient temperature (°C)
2.82
Seeing (arcsec)
1.07
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 41.5110 41.5450 139.1000 139.2000
A0-J2 126.9970 127.0450 79.3000 79.5000
A0-J6 156.6430 156.5980 20.1720 20.2900
B5-J2 111.9800 111.9770 60.6000 60.8000
B5-J6 180.3950 180.3680 8.5490 8.6550
J2-J6 142.3230 142.4140 330.1810 330.2810
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 60910.3412622847
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 41.511
HIERARCH ESO ISS PBL12 END 41.545
HIERARCH ESO ISS PBLA12 START 139.1
HIERARCH ESO ISS PBLA12 END 139.2
HIERARCH ESO ISS PBL13 START 126.997
HIERARCH ESO ISS PBL13 END 127.045
HIERARCH ESO ISS PBLA13 START 79.3
HIERARCH ESO ISS PBLA13 END 79.5
HIERARCH ESO ISS PBL14 START 156.643
HIERARCH ESO ISS PBL14 END 156.598
HIERARCH ESO ISS PBLA14 START 20.172
HIERARCH ESO ISS PBLA14 END 20.29
HIERARCH ESO ISS PBL23 START 111.98
HIERARCH ESO ISS PBL23 END 111.977
HIERARCH ESO ISS PBLA23 START 60.6
HIERARCH ESO ISS PBLA23 END 60.8
HIERARCH ESO ISS PBL24 START 180.395
HIERARCH ESO ISS PBL24 END 180.368
HIERARCH ESO ISS PBLA24 START 8.549
HIERARCH ESO ISS PBLA24 END 8.655
HIERARCH ESO ISS PBL34 START 142.323
HIERARCH ESO ISS PBL34 END 142.414
HIERARCH ESO ISS PBLA34 START 330.181
HIERARCH ESO ISS PBLA34 END 330.281
HIERARCH ESO ISS AMBI TAU0 START 0.002576
HIERARCH ESO ISS AMBI TAU0 END 0.002576
HIERARCH ESO ISS AMBI TEMP 2.82
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 1.07