Exposure
ID
PIONI.2025-09-22T03:19:48.704_1
Header ID
PIONI.2025-09-22T03:19:48.704
Date updated
2025-09-22 03:25:40 UTC+0000
Release date
2025-09-22 03:19:48 UTC+0000
UTC Start
2025-09-22 03:19:48.705
UTC End
2025-09-22 03:20:27.105
MJD Start
60940.1387581541
MJD End
60940.13920259854
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.006908
Ambient temperature (°C)
11.32
Seeing (arcsec)
0.39
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 90.4090 90.3950 113.4000 113.4000
A0-J2 127.7760 127.8440 93.1000 93.1000
A0-K0 121.5460 121.6820 72.9470 72.9550
G1-J2 53.2310 53.3020 57.0000 57.0000
G1-K0 78.8960 78.9620 24.9070 24.9990
J2-K0 44.0250 44.0060 345.0040 345.0860
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 60940.1387581541
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 90.409
HIERARCH ESO ISS PBL12 END 90.395
HIERARCH ESO ISS PBLA12 START 113.4
HIERARCH ESO ISS PBLA12 END 113.4
HIERARCH ESO ISS PBL13 START 127.776
HIERARCH ESO ISS PBL13 END 127.844
HIERARCH ESO ISS PBLA13 START 93.1
HIERARCH ESO ISS PBLA13 END 93.1
HIERARCH ESO ISS PBL14 START 121.546
HIERARCH ESO ISS PBL14 END 121.682
HIERARCH ESO ISS PBLA14 START 72.947
HIERARCH ESO ISS PBLA14 END 72.955
HIERARCH ESO ISS PBL23 START 53.231
HIERARCH ESO ISS PBL23 END 53.302
HIERARCH ESO ISS PBLA23 START 57.0
HIERARCH ESO ISS PBLA23 END 57.0
HIERARCH ESO ISS PBL24 START 78.896
HIERARCH ESO ISS PBL24 END 78.962
HIERARCH ESO ISS PBLA24 START 24.907
HIERARCH ESO ISS PBLA24 END 24.999
HIERARCH ESO ISS PBL34 START 44.025
HIERARCH ESO ISS PBL34 END 44.006
HIERARCH ESO ISS PBLA34 START 345.004
HIERARCH ESO ISS PBLA34 END 345.086
HIERARCH ESO ISS AMBI TAU0 START 0.006908
HIERARCH ESO ISS AMBI TAU0 END 0.006908
HIERARCH ESO ISS AMBI TEMP 11.32
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.39