Exposure
ID
PIONI.2025-09-21T04:19:52.128_1
Header ID
PIONI.2025-09-21T04:19:52.128
Date updated
2025-09-21 04:30:47 UTC+0000
Release date
2025-09-21 04:19:52 UTC+0000
UTC Start
2025-09-21 04:19:52.128
UTC End
2025-09-21 04:20:30.528
MJD Start
60939.1804644456
MJD End
60939.18090889004
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002198
Ambient temperature (°C)
11.03
Seeing (arcsec)
0.57
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 87.1850 87.1070 113.5000 113.5000
A0-J2 128.6610 128.6170 92.3000 92.3000
A0-K0 127.5300 127.5650 73.0020 72.9960
G1-J2 56.9540 56.9900 58.6000 58.6000
G1-K0 83.4250 83.4860 30.2370 30.2990
J2-K0 42.9130 42.9010 351.1480 351.2430
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 60939.1804644456
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 87.185
HIERARCH ESO ISS PBL12 END 87.107
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 128.661
HIERARCH ESO ISS PBL13 END 128.617
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 127.53
HIERARCH ESO ISS PBL14 END 127.565
HIERARCH ESO ISS PBLA14 START 73.002
HIERARCH ESO ISS PBLA14 END 72.996
HIERARCH ESO ISS PBL23 START 56.954
HIERARCH ESO ISS PBL23 END 56.99
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 83.425
HIERARCH ESO ISS PBL24 END 83.486
HIERARCH ESO ISS PBLA24 START 30.237
HIERARCH ESO ISS PBLA24 END 30.299
HIERARCH ESO ISS PBL34 START 42.913
HIERARCH ESO ISS PBL34 END 42.901
HIERARCH ESO ISS PBLA34 START 351.148
HIERARCH ESO ISS PBLA34 END 351.243
HIERARCH ESO ISS AMBI TAU0 START 0.002198
HIERARCH ESO ISS AMBI TAU0 END 0.002198
HIERARCH ESO ISS AMBI TEMP 11.03
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57