Exposure
ID
PIONI.2025-04-26T00:22:11.688_1
Header ID
PIONI.2025-04-26T00:22:11.688
Date updated
2025-04-26 00:30:49 UTC+0000
Release date
2026-04-26 00:30:48 UTC+0000
UTC Start
2025-04-26 00:22:11.688
UTC End
2025-04-26 00:22:50.088
MJD Start
60791.015413058
MJD End
60791.01585750244
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005591
Ambient temperature (°C)
13.91
Seeing (arcsec)
0.45
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 90.4990 90.5020 115.0000 115.1000
A0-J2 129.1290 129.1460 91.8000 91.9000
A0-K0 127.7560 127.7790 70.0330 70.1330
G1-J2 58.0950 58.1060 54.1000 54.2000
G1-K0 90.2650 90.2740 24.9300 25.0380
J2-K0 48.5930 48.5910 349.3420 349.4470
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 60791.015413058
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 90.499
HIERARCH ESO ISS PBL12 END 90.502
HIERARCH ESO ISS PBLA12 START 115.0
HIERARCH ESO ISS PBLA12 END 115.1
HIERARCH ESO ISS PBL13 START 129.129
HIERARCH ESO ISS PBL13 END 129.146
HIERARCH ESO ISS PBLA13 START 91.8
HIERARCH ESO ISS PBLA13 END 91.9
HIERARCH ESO ISS PBL14 START 127.756
HIERARCH ESO ISS PBL14 END 127.779
HIERARCH ESO ISS PBLA14 START 70.033
HIERARCH ESO ISS PBLA14 END 70.133
HIERARCH ESO ISS PBL23 START 58.095
HIERARCH ESO ISS PBL23 END 58.106
HIERARCH ESO ISS PBLA23 START 54.1
HIERARCH ESO ISS PBLA23 END 54.2
HIERARCH ESO ISS PBL24 START 90.265
HIERARCH ESO ISS PBL24 END 90.274
HIERARCH ESO ISS PBLA24 START 24.93
HIERARCH ESO ISS PBLA24 END 25.038
HIERARCH ESO ISS PBL34 START 48.593
HIERARCH ESO ISS PBL34 END 48.591
HIERARCH ESO ISS PBLA34 START 349.342
HIERARCH ESO ISS PBLA34 END 349.447
HIERARCH ESO ISS AMBI TAU0 START 0.005591
HIERARCH ESO ISS AMBI TAU0 END 0.005591
HIERARCH ESO ISS AMBI TEMP 13.91
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45