Exposure
ID
PIONI.2025-04-26T23:49:04.408_1
Header ID
PIONI.2025-04-26T23:49:04.408
Date updated
2025-04-26 23:55:33 UTC+0000
Release date
2026-04-26 23:55:33 UTC+0000
UTC Start
2025-04-26 23:49:04.408
UTC End
2025-04-26 23:49:42.808
MJD Start
60791.9924121322
MJD End
60791.99285657664
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004907
Ambient temperature (°C)
13.46
Seeing (arcsec)
0.48
Observation
ID
66988
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
49803
Name
HD87810
RA
151.780882
DEC
-21.25569
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 89.8230 89.8560 112.5000 112.6000
A0-J2 127.5970 127.6630 89.2000 89.3000
A0-K0 126.1370 126.2020 67.0920 67.1770
G1-J2 57.4650 57.4890 50.9000 51.0000
G1-K0 89.8690 89.8810 21.6910 21.7840
J2-K0 48.6360 48.6350 346.4500 346.5270
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 60791.9924121322
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD87810
RA 151.780882
DEC -21.25569
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 89.823
HIERARCH ESO ISS PBL12 END 89.856
HIERARCH ESO ISS PBLA12 START 112.5
HIERARCH ESO ISS PBLA12 END 112.6
HIERARCH ESO ISS PBL13 START 127.597
HIERARCH ESO ISS PBL13 END 127.663
HIERARCH ESO ISS PBLA13 START 89.2
HIERARCH ESO ISS PBLA13 END 89.3
HIERARCH ESO ISS PBL14 START 126.137
HIERARCH ESO ISS PBL14 END 126.202
HIERARCH ESO ISS PBLA14 START 67.092
HIERARCH ESO ISS PBLA14 END 67.177
HIERARCH ESO ISS PBL23 START 57.465
HIERARCH ESO ISS PBL23 END 57.489
HIERARCH ESO ISS PBLA23 START 50.9
HIERARCH ESO ISS PBLA23 END 51.0
HIERARCH ESO ISS PBL24 START 89.869
HIERARCH ESO ISS PBL24 END 89.881
HIERARCH ESO ISS PBLA24 START 21.691
HIERARCH ESO ISS PBLA24 END 21.784
HIERARCH ESO ISS PBL34 START 48.636
HIERARCH ESO ISS PBL34 END 48.635
HIERARCH ESO ISS PBLA34 START 346.45
HIERARCH ESO ISS PBLA34 END 346.527
HIERARCH ESO ISS AMBI TAU0 START 0.004907
HIERARCH ESO ISS AMBI TAU0 END 0.004907
HIERARCH ESO ISS AMBI TEMP 13.46
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.43