Exposure
ID
PIONI.2025-08-23T05:24:05.390_1
Header ID
PIONI.2025-08-23T05:24:05.390
Date updated
2025-08-23 05:30:43 UTC+0000
Release date
2026-08-23 05:30:43 UTC+0000
UTC Start
2025-08-23 05:24:05.391
UTC End
2025-08-23 05:24:43.791
MJD Start
60910.2250623908
MJD End
60910.22550683524
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.003541
Ambient temperature (°C)
2.74
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 46.8610 46.8650 185.1000 185.2000
A0-J2 76.4530 76.1760 127.1000 127.4000
A0-J6 149.0290 148.8620 38.0680 38.0590
B5-J2 65.1370 64.8330 89.5000 89.6000
B5-J6 190.0710 189.9560 30.3600 30.3740
J2-J6 166.3820 166.3970 10.7100 10.8090
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 60910.2250623908
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 46.861
HIERARCH ESO ISS PBL12 END 46.865
HIERARCH ESO ISS PBLA12 START 185.1
HIERARCH ESO ISS PBLA12 END 185.2
HIERARCH ESO ISS PBL13 START 76.453
HIERARCH ESO ISS PBL13 END 76.176
HIERARCH ESO ISS PBLA13 START 127.1
HIERARCH ESO ISS PBLA13 END 127.4
HIERARCH ESO ISS PBL14 START 149.029
HIERARCH ESO ISS PBL14 END 148.862
HIERARCH ESO ISS PBLA14 START 38.068
HIERARCH ESO ISS PBLA14 END 38.059
HIERARCH ESO ISS PBL23 START 65.137
HIERARCH ESO ISS PBL23 END 64.833
HIERARCH ESO ISS PBLA23 START 89.5
HIERARCH ESO ISS PBLA23 END 89.6
HIERARCH ESO ISS PBL24 START 190.071
HIERARCH ESO ISS PBL24 END 189.956
HIERARCH ESO ISS PBLA24 START 30.36
HIERARCH ESO ISS PBLA24 END 30.374
HIERARCH ESO ISS PBL34 START 166.382
HIERARCH ESO ISS PBL34 END 166.397
HIERARCH ESO ISS PBLA34 START 10.71
HIERARCH ESO ISS PBLA34 END 10.809
HIERARCH ESO ISS AMBI TAU0 START 0.003541
HIERARCH ESO ISS AMBI TAU0 END 0.003541
HIERARCH ESO ISS AMBI TEMP 2.74
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.83