Exposure
ID
PIONI.2025-06-18T09:51:20.253_1
Header ID
PIONI.2025-06-18T09:51:20.253
Date updated
2025-06-18 10:00:45 UTC+0000
Release date
2026-06-18 10:00:45 UTC+0000
UTC Start
2025-06-18 09:51:20.254
UTC End
2025-06-18 09:51:58.654
MJD Start
60844.410651084
MJD End
60844.41109552844
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.003338
Ambient temperature (°C)
4.89
Seeing (arcsec)
0.715
Observation
ID
68127
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
50638
Name
zetHor
RA
40.163463
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 64.7940 64.9110 66.0000 66.2000
A0-J2 111.0620 111.1520 42.0000 42.2000
A0-K0 123.5930 123.6230 25.5340 25.7260
G1-J2 58.1570 58.1590 15.1000 15.3000
G1-K0 85.3770 85.3810 356.0310 356.1530
J2-K0 35.8750 35.9150 324.0150 324.0920
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 60844.410651084
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME zetHor
RA 40.163463
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 64.794
HIERARCH ESO ISS PBL12 END 64.911
HIERARCH ESO ISS PBLA12 START 66.0
HIERARCH ESO ISS PBLA12 END 66.2
HIERARCH ESO ISS PBL13 START 111.062
HIERARCH ESO ISS PBL13 END 111.152
HIERARCH ESO ISS PBLA13 START 42.0
HIERARCH ESO ISS PBLA13 END 42.2
HIERARCH ESO ISS PBL14 START 123.593
HIERARCH ESO ISS PBL14 END 123.623
HIERARCH ESO ISS PBLA14 START 25.534
HIERARCH ESO ISS PBLA14 END 25.726
HIERARCH ESO ISS PBL23 START 58.157
HIERARCH ESO ISS PBL23 END 58.159
HIERARCH ESO ISS PBLA23 START 15.1
HIERARCH ESO ISS PBLA23 END 15.3
HIERARCH ESO ISS PBL24 START 85.377
HIERARCH ESO ISS PBL24 END 85.381
HIERARCH ESO ISS PBLA24 START 356.031
HIERARCH ESO ISS PBLA24 END 356.153
HIERARCH ESO ISS PBL34 START 35.875
HIERARCH ESO ISS PBL34 END 35.915
HIERARCH ESO ISS PBLA34 START 324.015
HIERARCH ESO ISS PBLA34 END 324.092
HIERARCH ESO ISS AMBI TAU0 START 0.003383
HIERARCH ESO ISS AMBI TAU0 END 0.003293
HIERARCH ESO ISS AMBI TEMP 4.89
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.72