Exposure
ID
PIONI.2025-09-22T02:26:14.855_1
Header ID
PIONI.2025-09-22T02:26:14.855
Date updated
2025-09-22 02:30:53 UTC+0000
Release date
2026-09-22 02:30:53 UTC+0000
UTC Start
2025-09-22 02:26:14.855
UTC End
2025-09-22 02:26:53.255
MJD Start
60940.101560819
MJD End
60940.10200526344
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005487
Ambient temperature (°C)
11.53
Seeing (arcsec)
0.55
Observation
ID
70144
Category
science
Program ID
115.28F2.003
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52045
Name
HD173282
RA
281.326709
DEC
-21.00179
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 73.9470 73.8410 142.5000 142.7000
A0-J2 96.6080 96.3460 113.9000 114.0000
A0-K0 97.3930 97.1170 84.8870 84.9460
G1-J2 47.5190 47.4160 65.7000 65.7000
G1-K0 85.0650 85.0020 37.6650 37.6830
J2-K0 48.5680 48.5700 10.2770 10.3610
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60940.101560819
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD173282
RA 281.326709
DEC -21.00179
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 73.947
HIERARCH ESO ISS PBL12 END 73.841
HIERARCH ESO ISS PBLA12 START 142.5
HIERARCH ESO ISS PBLA12 END 142.7
HIERARCH ESO ISS PBL13 START 96.608
HIERARCH ESO ISS PBL13 END 96.346
HIERARCH ESO ISS PBLA13 START 113.9
HIERARCH ESO ISS PBLA13 END 114.0
HIERARCH ESO ISS PBL14 START 97.393
HIERARCH ESO ISS PBL14 END 97.117
HIERARCH ESO ISS PBLA14 START 84.887
HIERARCH ESO ISS PBLA14 END 84.946
HIERARCH ESO ISS PBL23 START 47.519
HIERARCH ESO ISS PBL23 END 47.416
HIERARCH ESO ISS PBLA23 START 65.7
HIERARCH ESO ISS PBLA23 END 65.7
HIERARCH ESO ISS PBL24 START 85.065
HIERARCH ESO ISS PBL24 END 85.002
HIERARCH ESO ISS PBLA24 START 37.665
HIERARCH ESO ISS PBLA24 END 37.683
HIERARCH ESO ISS PBL34 START 48.568
HIERARCH ESO ISS PBL34 END 48.57
HIERARCH ESO ISS PBLA34 START 10.277
HIERARCH ESO ISS PBLA34 END 10.361
HIERARCH ESO ISS AMBI TAU0 START 0.005487
HIERARCH ESO ISS AMBI TAU0 END 0.005487
HIERARCH ESO ISS AMBI TEMP 11.53
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.55