Exposure
ID
PIONI.2025-08-23T08:12:15.521_1
Header ID
PIONI.2025-08-23T08:12:15.521
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 08:12:15.521
UTC End
2025-08-23 08:12:53.921
MJD Start
60910.3418463101
MJD End
60910.34229075454
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 41.5460 41.5800 139.2000 139.3000
A0-J2 127.0470 127.0950 79.5000 79.7000
A0-J6 156.5960 156.5480 20.2940 20.4140
B5-J2 111.9770 111.9740 60.8000 61.0000
B5-J6 180.3670 180.3380 8.6590 8.7670
J2-J6 142.4180 142.5090 330.2850 330.3870
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 60910.3418463101
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 41.546
HIERARCH ESO ISS PBL12 END 41.58
HIERARCH ESO ISS PBLA12 START 139.2
HIERARCH ESO ISS PBLA12 END 139.3
HIERARCH ESO ISS PBL13 START 127.047
HIERARCH ESO ISS PBL13 END 127.095
HIERARCH ESO ISS PBLA13 START 79.5
HIERARCH ESO ISS PBLA13 END 79.7
HIERARCH ESO ISS PBL14 START 156.596
HIERARCH ESO ISS PBL14 END 156.548
HIERARCH ESO ISS PBLA14 START 20.294
HIERARCH ESO ISS PBLA14 END 20.414
HIERARCH ESO ISS PBL23 START 111.977
HIERARCH ESO ISS PBL23 END 111.974
HIERARCH ESO ISS PBLA23 START 60.8
HIERARCH ESO ISS PBLA23 END 61.0
HIERARCH ESO ISS PBL24 START 180.367
HIERARCH ESO ISS PBL24 END 180.338
HIERARCH ESO ISS PBLA24 START 8.659
HIERARCH ESO ISS PBLA24 END 8.767
HIERARCH ESO ISS PBL34 START 142.418
HIERARCH ESO ISS PBL34 END 142.509
HIERARCH ESO ISS PBLA34 START 330.285
HIERARCH ESO ISS PBLA34 END 330.387
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