Exposure
ID
PIONI.2025-05-31T03:57:50.723_1
Header ID
PIONI.2025-05-31T03:57:50.723
Date updated
2025-05-31 04:11:40 UTC+0000
Release date
2025-05-31 03:57:50 UTC+0000
UTC Start
2025-05-31 03:57:50.723
UTC End
2025-05-31 03:58:29.123
MJD Start
60826.1651704046
MJD End
60826.165614849044
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.010527
Ambient temperature (°C)
15.28
Seeing (arcsec)
0.32
Observation
ID
67669
Category
calibrator
Program ID
115.285P.001
Program Title
A SUB-PERCENT GEOMETRICAL LMC DISTANCE MEASUREMENT
Program Type
Normal
PI / COI
PIETRZYNSKI / GALLENNE / GRACZYK / HAJDU / GIEREN
Target
ID
50322
Name
HD157913
RA
261.513974
DEC
3.69395
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 47.7410 47.7210 143.5000 143.5000
A0-J2 119.4550 119.6260 94.3000 94.3000
A0-J6 139.3010 139.4040 17.7180 17.8380
B5-J2 95.3600 95.5550 72.0000 72.1000
B5-J6 171.6310 171.6610 4.6740 4.7840
J2-J6 161.0880 161.0090 331.5590 331.5990
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.285P.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60826.1651704046
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD157913
RA 261.513974
DEC 3.69395
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 47.741
HIERARCH ESO ISS PBL12 END 47.721
HIERARCH ESO ISS PBLA12 START 143.5
HIERARCH ESO ISS PBLA12 END 143.5
HIERARCH ESO ISS PBL13 START 119.455
HIERARCH ESO ISS PBL13 END 119.626
HIERARCH ESO ISS PBLA13 START 94.3
HIERARCH ESO ISS PBLA13 END 94.3
HIERARCH ESO ISS PBL14 START 139.301
HIERARCH ESO ISS PBL14 END 139.404
HIERARCH ESO ISS PBLA14 START 17.718
HIERARCH ESO ISS PBLA14 END 17.838
HIERARCH ESO ISS PBL23 START 95.36
HIERARCH ESO ISS PBL23 END 95.555
HIERARCH ESO ISS PBLA23 START 72.0
HIERARCH ESO ISS PBLA23 END 72.1
HIERARCH ESO ISS PBL24 START 171.631
HIERARCH ESO ISS PBL24 END 171.661
HIERARCH ESO ISS PBLA24 START 4.674
HIERARCH ESO ISS PBLA24 END 4.784
HIERARCH ESO ISS PBL34 START 161.088
HIERARCH ESO ISS PBL34 END 161.009
HIERARCH ESO ISS PBLA34 START 331.559
HIERARCH ESO ISS PBLA34 END 331.599
HIERARCH ESO ISS AMBI TAU0 START 0.010527
HIERARCH ESO ISS AMBI TAU0 END 0.010527
HIERARCH ESO ISS AMBI TEMP 15.28
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.32