Exposure
ID
PIONI.2025-05-31T04:06:33.939_1
Header ID
PIONI.2025-05-31T04:06:33.939
Date updated
2025-05-31 04:16:54 UTC+0000
Release date
2026-05-31 04:16:54 UTC+0000
UTC Start
2025-05-31 04:06:33.939
UTC End
2025-05-31 04:07:12.339
MJD Start
60826.1712261452
MJD End
60826.17167058964
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.010263
Ambient temperature (°C)
15.13
Seeing (arcsec)
0.315
Observation
ID
67670
Category
science
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
50323
Name
HIP86391
RA
264.785134
DEC
2.02792
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 48.0370 48.0200 143.6000 143.6000
A0-J2 118.3950 118.5790 93.7000 93.7000
A0-J6 141.3990 141.4960 16.7320 16.8540
B5-J2 94.8390 95.0390 70.9000 70.9000
B5-J6 174.4800 174.5050 4.0000 4.1120
J2-J6 162.6330 162.5620 331.5670 331.6060
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.285P.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60826.1712261452
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP86391
RA 264.785134
DEC 2.02792
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 48.037
HIERARCH ESO ISS PBL12 END 48.02
HIERARCH ESO ISS PBLA12 START 143.6
HIERARCH ESO ISS PBLA12 END 143.6
HIERARCH ESO ISS PBL13 START 118.395
HIERARCH ESO ISS PBL13 END 118.579
HIERARCH ESO ISS PBLA13 START 93.7
HIERARCH ESO ISS PBLA13 END 93.7
HIERARCH ESO ISS PBL14 START 141.399
HIERARCH ESO ISS PBL14 END 141.496
HIERARCH ESO ISS PBLA14 START 16.732
HIERARCH ESO ISS PBLA14 END 16.854
HIERARCH ESO ISS PBL23 START 94.839
HIERARCH ESO ISS PBL23 END 95.039
HIERARCH ESO ISS PBLA23 START 70.9
HIERARCH ESO ISS PBLA23 END 70.9
HIERARCH ESO ISS PBL24 START 174.48
HIERARCH ESO ISS PBL24 END 174.505
HIERARCH ESO ISS PBLA24 START 4.0
HIERARCH ESO ISS PBLA24 END 4.112
HIERARCH ESO ISS PBL34 START 162.633
HIERARCH ESO ISS PBL34 END 162.562
HIERARCH ESO ISS PBLA34 START 331.567
HIERARCH ESO ISS PBLA34 END 331.606
HIERARCH ESO ISS AMBI TAU0 START 0.010263
HIERARCH ESO ISS AMBI TAU0 END 0.010263
HIERARCH ESO ISS AMBI TEMP 15.13
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.32