Exposure
ID
PIONI.2025-07-21T08:23:16.506_1
Header ID
PIONI.2025-07-21T08:23:16.506
Date updated
2025-07-21 08:31:02 UTC+0000
Release date
2026-07-21 08:31:02 UTC+0000
UTC Start
2025-07-21 08:23:16.506
UTC End
2025-07-21 08:23:42.106
MJD Start
60877.3494966002
MJD End
60877.3497928965
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003086
Ambient temperature (°C)
14.77
Seeing (arcsec)
0.72
Observation
ID
68903
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
51266
Name
HIP18401
RA
59.015015
DEC
-63.46352
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 66.0530 66.1070 49.5000 49.6000
A0-J2 116.1040 116.1370 30.2000 30.4000
A0-K0 126.6510 126.6570 16.9300 17.0720
G1-J2 58.0040 58.0030 8.1000 8.2000
G1-K0 79.3580 79.3660 350.3440 350.4410
J2-K0 29.9290 29.9600 314.0610 314.1350
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 60877.3494966002
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP18401
RA 59.015015
DEC -63.46352
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 66.053
HIERARCH ESO ISS PBL12 END 66.107
HIERARCH ESO ISS PBLA12 START 49.5
HIERARCH ESO ISS PBLA12 END 49.6
HIERARCH ESO ISS PBL13 START 116.104
HIERARCH ESO ISS PBL13 END 116.137
HIERARCH ESO ISS PBLA13 START 30.2
HIERARCH ESO ISS PBLA13 END 30.4
HIERARCH ESO ISS PBL14 START 126.651
HIERARCH ESO ISS PBL14 END 126.657
HIERARCH ESO ISS PBLA14 START 16.93
HIERARCH ESO ISS PBLA14 END 17.072
HIERARCH ESO ISS PBL23 START 58.004
HIERARCH ESO ISS PBL23 END 58.003
HIERARCH ESO ISS PBLA23 START 8.1
HIERARCH ESO ISS PBLA23 END 8.2
HIERARCH ESO ISS PBL24 START 79.358
HIERARCH ESO ISS PBL24 END 79.366
HIERARCH ESO ISS PBLA24 START 350.344
HIERARCH ESO ISS PBLA24 END 350.441
HIERARCH ESO ISS PBL34 START 29.929
HIERARCH ESO ISS PBL34 END 29.96
HIERARCH ESO ISS PBLA34 START 314.061
HIERARCH ESO ISS PBLA34 END 314.135
HIERARCH ESO ISS AMBI TAU0 START 0.003086
HIERARCH ESO ISS AMBI TAU0 END 0.003086
HIERARCH ESO ISS AMBI TEMP 14.77
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.67