Exposure
ID
PIONI.2025-08-23T08:13:06.022_1
Header ID
PIONI.2025-08-23T08:13:06.022
Date updated
2025-08-23 08:20:40 UTC+0000
Release date
2026-08-23 08:20:40 UTC+0000
UTC Start
2025-08-23 08:13:06.022
UTC End
2025-08-23 08:13:44.422
MJD Start
60910.34243081
MJD End
60910.34287525444
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002576
Ambient temperature (°C)
2.8
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 41.5820 41.6160 139.3000 139.4000
A0-J2 127.0970 127.1440 79.7000 79.8000
A0-J6 156.5460 156.4990 20.4190 20.5390
B5-J2 111.9730 111.9700 61.0000 61.1000
B5-J6 180.3370 180.3080 8.7710 8.8780
J2-J6 142.5130 142.6040 330.3910 330.4930
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 60910.34243081
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 41.582
HIERARCH ESO ISS PBL12 END 41.616
HIERARCH ESO ISS PBLA12 START 139.3
HIERARCH ESO ISS PBLA12 END 139.4
HIERARCH ESO ISS PBL13 START 127.097
HIERARCH ESO ISS PBL13 END 127.144
HIERARCH ESO ISS PBLA13 START 79.7
HIERARCH ESO ISS PBLA13 END 79.8
HIERARCH ESO ISS PBL14 START 156.546
HIERARCH ESO ISS PBL14 END 156.499
HIERARCH ESO ISS PBLA14 START 20.419
HIERARCH ESO ISS PBLA14 END 20.539
HIERARCH ESO ISS PBL23 START 111.973
HIERARCH ESO ISS PBL23 END 111.97
HIERARCH ESO ISS PBLA23 START 61.0
HIERARCH ESO ISS PBLA23 END 61.1
HIERARCH ESO ISS PBL24 START 180.337
HIERARCH ESO ISS PBL24 END 180.308
HIERARCH ESO ISS PBLA24 START 8.771
HIERARCH ESO ISS PBLA24 END 8.878
HIERARCH ESO ISS PBL34 START 142.513
HIERARCH ESO ISS PBL34 END 142.604
HIERARCH ESO ISS PBLA34 START 330.391
HIERARCH ESO ISS PBLA34 END 330.493
HIERARCH ESO ISS AMBI TAU0 START 0.002576
HIERARCH ESO ISS AMBI TAU0 END 0.002576
HIERARCH ESO ISS AMBI TEMP 2.8
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 1.07