Exposure
ID
PIONI.2025-06-01T23:45:48.600_1
Header ID
PIONI.2025-06-01T23:45:48.600
Date updated
2025-06-01 23:51:19 UTC+0000
Release date
2026-06-01 23:51:19 UTC+0000
UTC Start
2025-06-01 23:45:48.600
UTC End
2025-06-01 23:46:27.000
MJD Start
60827.9901458286
MJD End
60827.99059027304
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.007311
Ambient temperature (°C)
12.36
Seeing (arcsec)
0.55
Observation
ID
67629
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
50297
Name
HD87810
RA
151.78148
DEC
-21.25568
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 47.6360 47.6270 163.4000 163.5000
A0-J2 119.0400 118.8790 102.6000 102.7000
A0-J6 167.7320 167.6850 34.1640 34.2140
B5-J2 104.4490 104.3200 79.1000 79.2000
B5-J6 201.2670 201.2470 23.5990 23.6580
J2-J6 166.1600 166.1500 352.3910 352.4920
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 60827.9901458286
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD87810
RA 151.78148
DEC -21.25568
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 47.636
HIERARCH ESO ISS PBL12 END 47.627
HIERARCH ESO ISS PBLA12 START 163.4
HIERARCH ESO ISS PBLA12 END 163.5
HIERARCH ESO ISS PBL13 START 119.04
HIERARCH ESO ISS PBL13 END 118.879
HIERARCH ESO ISS PBLA13 START 102.6
HIERARCH ESO ISS PBLA13 END 102.7
HIERARCH ESO ISS PBL14 START 167.732
HIERARCH ESO ISS PBL14 END 167.685
HIERARCH ESO ISS PBLA14 START 34.164
HIERARCH ESO ISS PBLA14 END 34.214
HIERARCH ESO ISS PBL23 START 104.449
HIERARCH ESO ISS PBL23 END 104.32
HIERARCH ESO ISS PBLA23 START 79.1
HIERARCH ESO ISS PBLA23 END 79.2
HIERARCH ESO ISS PBL24 START 201.267
HIERARCH ESO ISS PBL24 END 201.247
HIERARCH ESO ISS PBLA24 START 23.599
HIERARCH ESO ISS PBLA24 END 23.658
HIERARCH ESO ISS PBL34 START 166.16
HIERARCH ESO ISS PBL34 END 166.15
HIERARCH ESO ISS PBLA34 START 352.391
HIERARCH ESO ISS PBLA34 END 352.492
HIERARCH ESO ISS AMBI TAU0 START 0.006834
HIERARCH ESO ISS AMBI TAU0 END 0.007788
HIERARCH ESO ISS AMBI TEMP 12.36
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.5