Exposure
ID
PIONI.2025-04-26T23:50:44.961_1
Header ID
PIONI.2025-04-26T23:50:44.961
Date updated
2025-04-27 00:00:48 UTC+0000
Release date
2026-04-27 00:00:47 UTC+0000
UTC Start
2025-04-26 23:50:44.961
UTC End
2025-04-26 23:51:23.361
MJD Start
60791.9935759357
MJD End
60791.994020380145
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004907
Ambient temperature (°C)
13.46
Seeing (arcsec)
0.42
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 89.8910 89.9230 112.7000 112.7000
A0-J2 127.7340 127.7980 89.3000 89.4000
A0-K0 126.2700 126.3340 67.2700 67.3530
G1-J2 57.5140 57.5370 51.1000 51.2000
G1-K0 89.8950 89.9080 21.8850 21.9760
J2-K0 48.6340 48.6330 346.6110 346.6870
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 60791.9935759357
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 89.891
HIERARCH ESO ISS PBL12 END 89.923
HIERARCH ESO ISS PBLA12 START 112.7
HIERARCH ESO ISS PBLA12 END 112.7
HIERARCH ESO ISS PBL13 START 127.734
HIERARCH ESO ISS PBL13 END 127.798
HIERARCH ESO ISS PBLA13 START 89.3
HIERARCH ESO ISS PBLA13 END 89.4
HIERARCH ESO ISS PBL14 START 126.27
HIERARCH ESO ISS PBL14 END 126.334
HIERARCH ESO ISS PBLA14 START 67.27
HIERARCH ESO ISS PBLA14 END 67.353
HIERARCH ESO ISS PBL23 START 57.514
HIERARCH ESO ISS PBL23 END 57.537
HIERARCH ESO ISS PBLA23 START 51.1
HIERARCH ESO ISS PBLA23 END 51.2
HIERARCH ESO ISS PBL24 START 89.895
HIERARCH ESO ISS PBL24 END 89.908
HIERARCH ESO ISS PBLA24 START 21.885
HIERARCH ESO ISS PBLA24 END 21.976
HIERARCH ESO ISS PBL34 START 48.634
HIERARCH ESO ISS PBL34 END 48.633
HIERARCH ESO ISS PBLA34 START 346.611
HIERARCH ESO ISS PBLA34 END 346.687
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 0.43
HIERARCH ESO ISS AMBI FWHM END 0.41