Exposure
ID
PIONI.2025-09-20T03:40:39.932_1
Header ID
PIONI.2025-09-20T03:40:39.932
Date updated
2025-09-20 03:50:51 UTC+0000
Release date
2025-09-20 03:40:39 UTC+0000
UTC Start
2025-09-20 03:40:39.932
UTC End
2025-09-20 03:41:18.332
MJD Start
60938.1532399505
MJD End
60938.15368439494
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002906
Ambient temperature (°C)
13.88
Seeing (arcsec)
0.75
Observation
ID
70466
Category
calibrator
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
52252
Name
HD220171
RA
350.432629
DEC
3.06034
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 90.0660 90.0360 113.3000 113.3000
A0-J2 128.6680 128.7100 92.9000 92.9000
A0-K0 123.5400 123.6530 73.0500 73.0510
G1-J2 54.2960 54.3590 57.5000 57.5000
G1-K0 79.9580 80.0250 26.3230 26.4050
J2-K0 43.7300 43.7120 346.3300 346.4110
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60938.1532399505
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD220171
RA 350.432629
DEC 3.06034
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 90.066
HIERARCH ESO ISS PBL12 END 90.036
HIERARCH ESO ISS PBLA12 START 113.3
HIERARCH ESO ISS PBLA12 END 113.3
HIERARCH ESO ISS PBL13 START 128.668
HIERARCH ESO ISS PBL13 END 128.71
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 123.54
HIERARCH ESO ISS PBL14 END 123.653
HIERARCH ESO ISS PBLA14 START 73.05
HIERARCH ESO ISS PBLA14 END 73.051
HIERARCH ESO ISS PBL23 START 54.296
HIERARCH ESO ISS PBL23 END 54.359
HIERARCH ESO ISS PBLA23 START 57.5
HIERARCH ESO ISS PBLA23 END 57.5
HIERARCH ESO ISS PBL24 START 79.958
HIERARCH ESO ISS PBL24 END 80.025
HIERARCH ESO ISS PBLA24 START 26.323
HIERARCH ESO ISS PBLA24 END 26.405
HIERARCH ESO ISS PBL34 START 43.73
HIERARCH ESO ISS PBL34 END 43.712
HIERARCH ESO ISS PBLA34 START 346.33
HIERARCH ESO ISS PBLA34 END 346.411
HIERARCH ESO ISS AMBI TAU0 START 0.002906
HIERARCH ESO ISS AMBI TAU0 END 0.002906
HIERARCH ESO ISS AMBI TEMP 13.88
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.75