Exposure
ID
PIONI.2025-09-23T03:07:13.609_1
Header ID
PIONI.2025-09-23T03:07:13.609
Date updated
2025-09-23 03:16:04 UTC+0000
Release date
2025-09-23 03:07:13 UTC+0000
UTC Start
2025-09-23 03:07:13.609
UTC End
2025-09-23 03:07:52.009
MJD Start
60941.130018617
MJD End
60941.13046306144
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.008539
Ambient temperature (°C)
14.21
Seeing (arcsec)
0.425
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 90.5010 90.4970 113.5000 113.5000
A0-J2 126.9550 127.0400 93.2000 93.2000
A0-K0 120.0210 120.1720 72.8420 72.8600
G1-J2 52.4600 52.5350 56.5000 56.6000
G1-K0 78.1950 78.2610 23.8970 24.0010
J2-K0 44.2310 44.2110 344.1540 344.2400
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 60941.130018617
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 90.501
HIERARCH ESO ISS PBL12 END 90.497
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 126.955
HIERARCH ESO ISS PBL13 END 127.04
HIERARCH ESO ISS PBLA13 START 93.2
HIERARCH ESO ISS PBLA13 END 93.2
HIERARCH ESO ISS PBL14 START 120.021
HIERARCH ESO ISS PBL14 END 120.172
HIERARCH ESO ISS PBLA14 START 72.842
HIERARCH ESO ISS PBLA14 END 72.86
HIERARCH ESO ISS PBL23 START 52.46
HIERARCH ESO ISS PBL23 END 52.535
HIERARCH ESO ISS PBLA23 START 56.5
HIERARCH ESO ISS PBLA23 END 56.6
HIERARCH ESO ISS PBL24 START 78.195
HIERARCH ESO ISS PBL24 END 78.261
HIERARCH ESO ISS PBLA24 START 23.897
HIERARCH ESO ISS PBLA24 END 24.001
HIERARCH ESO ISS PBL34 START 44.231
HIERARCH ESO ISS PBL34 END 44.211
HIERARCH ESO ISS PBLA34 START 344.154
HIERARCH ESO ISS PBLA34 END 344.24
HIERARCH ESO ISS AMBI TAU0 START 0.008539
HIERARCH ESO ISS AMBI TAU0 END 0.008539
HIERARCH ESO ISS AMBI TEMP 14.21
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.43