Exposure
ID
PIONI.2025-05-31T04:35:39.219_1
Header ID
PIONI.2025-05-31T04:35:39.219
Date updated
2025-05-31 04:41:11 UTC+0000
Release date
2025-05-31 04:35:39 UTC+0000
UTC Start
2025-05-31 04:35:39.219
UTC End
2025-05-31 04:36:17.619
MJD Start
60826.1914261514
MJD End
60826.191870595845
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.012025000000000001
Ambient temperature (°C)
14.72
Seeing (arcsec)
0.375
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 46.6080 46.5790 144.8000 144.8000
A0-J2 125.9230 126.0250 93.5000 93.5000
A0-J6 144.6390 144.7620 22.9250 23.0270
B5-J2 103.3840 103.5300 72.9000 72.9000
B5-J6 173.8040 173.8660 9.7590 9.8640
J2-J6 157.0160 156.9220 333.7910 333.8480
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 60826.1914261514
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 46.608
HIERARCH ESO ISS PBL12 END 46.579
HIERARCH ESO ISS PBLA12 START 144.8
HIERARCH ESO ISS PBLA12 END 144.8
HIERARCH ESO ISS PBL13 START 125.923
HIERARCH ESO ISS PBL13 END 126.025
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.5
HIERARCH ESO ISS PBL14 START 144.639
HIERARCH ESO ISS PBL14 END 144.762
HIERARCH ESO ISS PBLA14 START 22.925
HIERARCH ESO ISS PBLA14 END 23.027
HIERARCH ESO ISS PBL23 START 103.384
HIERARCH ESO ISS PBL23 END 103.53
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 173.804
HIERARCH ESO ISS PBL24 END 173.866
HIERARCH ESO ISS PBLA24 START 9.759
HIERARCH ESO ISS PBLA24 END 9.864
HIERARCH ESO ISS PBL34 START 157.016
HIERARCH ESO ISS PBL34 END 156.922
HIERARCH ESO ISS PBLA34 START 333.791
HIERARCH ESO ISS PBLA34 END 333.848
HIERARCH ESO ISS AMBI TAU0 START 0.010936
HIERARCH ESO ISS AMBI TAU0 END 0.013114
HIERARCH ESO ISS AMBI TEMP 14.72
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.34