Exposure
ID
PIONI.2025-07-22T08:37:56.601_1
Header ID
PIONI.2025-07-22T08:37:56.601
Date updated
2025-07-22 08:45:46 UTC+0000
Release date
2026-07-22 08:45:46 UTC+0000
UTC Start
2025-07-22 08:37:56.601
UTC End
2025-07-22 08:38:35.001
MJD Start
60878.3596828766
MJD End
60878.360127321044
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006473
Ambient temperature (°C)
14.04
Seeing (arcsec)
0.315
Observation
ID
68917
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
51280
Name
zetHor
RA
40.163464
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 73.3230 73.4320 80.4000 80.6000
A0-J2 118.0000 118.0920 57.3000 57.5000
A0-K0 125.9060 125.9370 39.5070 39.6920
G1-J2 58.2280 58.2280 27.6000 27.8000
G1-K0 85.3280 85.3220 5.2440 5.3710
J2-K0 38.4900 38.5200 330.1130 330.2020
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 60878.3596828766
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME zetHor
RA 40.163464
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 73.323
HIERARCH ESO ISS PBL12 END 73.432
HIERARCH ESO ISS PBLA12 START 80.4
HIERARCH ESO ISS PBLA12 END 80.6
HIERARCH ESO ISS PBL13 START 118.0
HIERARCH ESO ISS PBL13 END 118.092
HIERARCH ESO ISS PBLA13 START 57.3
HIERARCH ESO ISS PBLA13 END 57.5
HIERARCH ESO ISS PBL14 START 125.906
HIERARCH ESO ISS PBL14 END 125.937
HIERARCH ESO ISS PBLA14 START 39.507
HIERARCH ESO ISS PBLA14 END 39.692
HIERARCH ESO ISS PBL23 START 58.228
HIERARCH ESO ISS PBL23 END 58.228
HIERARCH ESO ISS PBLA23 START 27.6
HIERARCH ESO ISS PBLA23 END 27.8
HIERARCH ESO ISS PBL24 START 85.328
HIERARCH ESO ISS PBL24 END 85.322
HIERARCH ESO ISS PBLA24 START 5.244
HIERARCH ESO ISS PBLA24 END 5.371
HIERARCH ESO ISS PBL34 START 38.49
HIERARCH ESO ISS PBL34 END 38.52
HIERARCH ESO ISS PBLA34 START 330.113
HIERARCH ESO ISS PBLA34 END 330.202
HIERARCH ESO ISS AMBI TAU0 START 0.006407
HIERARCH ESO ISS AMBI TAU0 END 0.006539
HIERARCH ESO ISS AMBI TEMP 14.04
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.33