Exposure
ID
PIONI.2025-09-20T04:25:15.607_1
Header ID
PIONI.2025-09-20T04:25:15.607
Date updated
2025-09-20 04:30:54 UTC+0000
Release date
2026-09-20 04:30:54 UTC+0000
UTC Start
2025-09-20 04:25:15.607
UTC End
2025-09-20 04:25:54.007
MJD Start
60938.1842084159
MJD End
60938.18465286034
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002255
Ambient temperature (°C)
14.03
Seeing (arcsec)
0.775
Observation
ID
70469
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
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52255
Name
zetHor
RA
40.163467
DEC
-54.54988
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 71.0360 71.1490 76.7000 76.8000
A0-J2 116.0760 116.1700 53.2000 53.4000
A0-K0 125.2650 125.2970 35.7020 35.8860
G1-J2 58.2240 58.2250 24.2000 24.3000
G1-K0 85.4160 85.4130 2.6790 2.8010
J2-K0 37.8290 37.8620 328.3530 328.4360
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 60938.1842084159
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME zetHor
RA 40.163467
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 71.036
HIERARCH ESO ISS PBL12 END 71.149
HIERARCH ESO ISS PBLA12 START 76.7
HIERARCH ESO ISS PBLA12 END 76.8
HIERARCH ESO ISS PBL13 START 116.076
HIERARCH ESO ISS PBL13 END 116.17
HIERARCH ESO ISS PBLA13 START 53.2
HIERARCH ESO ISS PBLA13 END 53.4
HIERARCH ESO ISS PBL14 START 125.265
HIERARCH ESO ISS PBL14 END 125.297
HIERARCH ESO ISS PBLA14 START 35.702
HIERARCH ESO ISS PBLA14 END 35.886
HIERARCH ESO ISS PBL23 START 58.224
HIERARCH ESO ISS PBL23 END 58.225
HIERARCH ESO ISS PBLA23 START 24.2
HIERARCH ESO ISS PBLA23 END 24.3
HIERARCH ESO ISS PBL24 START 85.416
HIERARCH ESO ISS PBL24 END 85.413
HIERARCH ESO ISS PBLA24 START 2.679
HIERARCH ESO ISS PBLA24 END 2.801
HIERARCH ESO ISS PBL34 START 37.829
HIERARCH ESO ISS PBL34 END 37.862
HIERARCH ESO ISS PBLA34 START 328.353
HIERARCH ESO ISS PBLA34 END 328.436
HIERARCH ESO ISS AMBI TAU0 START 0.002255
HIERARCH ESO ISS AMBI TAU0 END 0.002255
HIERARCH ESO ISS AMBI TEMP 14.03
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.78