Exposure
ID
PIONI.2025-09-21T02:55:35.181_1
Header ID
PIONI.2025-09-21T02:55:35.181
Date updated
2025-09-21 03:00:48 UTC+0000
Release date
2025-09-21 02:55:35 UTC+0000
UTC Start
2025-09-21 02:55:35.181
UTC End
2025-09-21 02:56:13.581
MJD Start
60939.121934968
MJD End
60939.122379412445
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002283
Ambient temperature (°C)
11.43
Seeing (arcsec)
0.63
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 90.3110 90.3300 113.8000 113.8000
A0-J2 124.4410 124.5620 93.6000 93.6000
A0-K0 116.0130 116.1920 72.5110 72.5270
G1-J2 50.5460 50.6290 55.4000 55.4000
G1-K0 76.6560 76.7180 21.4470 21.5520
J2-K0 44.7150 44.6950 342.3560 342.4270
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 60939.121934968
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 90.311
HIERARCH ESO ISS PBL12 END 90.33
HIERARCH ESO ISS PBLA12 START 113.8
HIERARCH ESO ISS PBLA12 END 113.8
HIERARCH ESO ISS PBL13 START 124.441
HIERARCH ESO ISS PBL13 END 124.562
HIERARCH ESO ISS PBLA13 START 93.6
HIERARCH ESO ISS PBLA13 END 93.6
HIERARCH ESO ISS PBL14 START 116.013
HIERARCH ESO ISS PBL14 END 116.192
HIERARCH ESO ISS PBLA14 START 72.511
HIERARCH ESO ISS PBLA14 END 72.527
HIERARCH ESO ISS PBL23 START 50.546
HIERARCH ESO ISS PBL23 END 50.629
HIERARCH ESO ISS PBLA23 START 55.4
HIERARCH ESO ISS PBLA23 END 55.4
HIERARCH ESO ISS PBL24 START 76.656
HIERARCH ESO ISS PBL24 END 76.718
HIERARCH ESO ISS PBLA24 START 21.447
HIERARCH ESO ISS PBLA24 END 21.552
HIERARCH ESO ISS PBL34 START 44.715
HIERARCH ESO ISS PBL34 END 44.695
HIERARCH ESO ISS PBLA34 START 342.356
HIERARCH ESO ISS PBLA34 END 342.427
HIERARCH ESO ISS AMBI TAU0 START 0.002283
HIERARCH ESO ISS AMBI TAU0 END 0.002283
HIERARCH ESO ISS AMBI TEMP 11.43
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.63