Exposure
ID
PIONI.2025-08-23T05:24:55.875_1
Header ID
PIONI.2025-08-23T05:24:55.875
Date updated
2025-08-23 05:35:30 UTC+0000
Release date
2026-08-23 05:35:30 UTC+0000
UTC Start
2025-08-23 05:24:55.875
UTC End
2025-08-23 05:25:34.275
MJD Start
60910.225646704
MJD End
60910.22609114844
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.003712
Ambient temperature (°C)
2.73
Seeing (arcsec)
0.7949999999999999
Observation
ID
70079
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51992
Name
HD173282
RA
281.327304
DEC
-21.00179
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 46.8650 46.8690 185.2000 185.4000
A0-J2 76.1640 75.8940 127.4000 127.6000
A0-J6 148.8550 148.6910 38.0590 38.0500
B5-J2 64.8210 64.5220 89.6000 89.7000
B5-J6 189.9510 189.8380 30.3750 30.3880
J2-J6 166.3970 166.4110 10.8130 10.9100
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 60910.225646704
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD173282
RA 281.327304
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 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 46.865
HIERARCH ESO ISS PBL12 END 46.869
HIERARCH ESO ISS PBLA12 START 185.2
HIERARCH ESO ISS PBLA12 END 185.4
HIERARCH ESO ISS PBL13 START 76.164
HIERARCH ESO ISS PBL13 END 75.894
HIERARCH ESO ISS PBLA13 START 127.4
HIERARCH ESO ISS PBLA13 END 127.6
HIERARCH ESO ISS PBL14 START 148.855
HIERARCH ESO ISS PBL14 END 148.691
HIERARCH ESO ISS PBLA14 START 38.059
HIERARCH ESO ISS PBLA14 END 38.05
HIERARCH ESO ISS PBL23 START 64.821
HIERARCH ESO ISS PBL23 END 64.522
HIERARCH ESO ISS PBLA23 START 89.6
HIERARCH ESO ISS PBLA23 END 89.7
HIERARCH ESO ISS PBL24 START 189.951
HIERARCH ESO ISS PBL24 END 189.838
HIERARCH ESO ISS PBLA24 START 30.375
HIERARCH ESO ISS PBLA24 END 30.388
HIERARCH ESO ISS PBL34 START 166.397
HIERARCH ESO ISS PBL34 END 166.411
HIERARCH ESO ISS PBLA34 START 10.813
HIERARCH ESO ISS PBLA34 END 10.91
HIERARCH ESO ISS AMBI TAU0 START 0.003541
HIERARCH ESO ISS AMBI TAU0 END 0.003883
HIERARCH ESO ISS AMBI TEMP 2.73
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.76