Exposure
ID
PIONI.2025-09-21T04:18:10.999_1
Header ID
PIONI.2025-09-21T04:18:10.999
Date updated
2025-09-21 04:25:51 UTC+0000
Release date
2025-09-21 04:18:10 UTC+0000
UTC Start
2025-09-21 04:18:10.999
UTC End
2025-09-21 04:18:49.399
MJD Start
60939.1792939678
MJD End
60939.17973841224
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002198
Ambient temperature (°C)
11.02
Seeing (arcsec)
0.6
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 87.3490 87.2710 113.5000 113.5000
A0-J2 128.7470 128.7070 92.3000 92.3000
A0-K0 127.4510 127.4900 73.0150 73.0090
G1-J2 56.8760 56.9140 58.6000 58.6000
G1-K0 83.2940 83.3570 30.1060 30.1690
J2-K0 42.9390 42.9270 350.9480 351.0440
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 60939.1792939678
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 87.349
HIERARCH ESO ISS PBL12 END 87.271
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 128.747
HIERARCH ESO ISS PBL13 END 128.707
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 127.451
HIERARCH ESO ISS PBL14 END 127.49
HIERARCH ESO ISS PBLA14 START 73.015
HIERARCH ESO ISS PBLA14 END 73.009
HIERARCH ESO ISS PBL23 START 56.876
HIERARCH ESO ISS PBL23 END 56.914
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 83.294
HIERARCH ESO ISS PBL24 END 83.357
HIERARCH ESO ISS PBLA24 START 30.106
HIERARCH ESO ISS PBLA24 END 30.169
HIERARCH ESO ISS PBL34 START 42.939
HIERARCH ESO ISS PBL34 END 42.927
HIERARCH ESO ISS PBLA34 START 350.948
HIERARCH ESO ISS PBLA34 END 351.044
HIERARCH ESO ISS AMBI TAU0 START 0.002198
HIERARCH ESO ISS AMBI TAU0 END 0.002198
HIERARCH ESO ISS AMBI TEMP 11.02
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.58