Exposure
ID
PIONI.2025-07-21T09:12:55.772_1
Header ID
PIONI.2025-07-21T09:12:55.772
Date updated
2025-07-21 09:21:10 UTC+0000
Release date
2026-07-21 09:21:10 UTC+0000
UTC Start
2025-07-21 09:12:55.772
UTC End
2025-07-21 09:13:21.372
MJD Start
60877.3839788432
MJD End
60877.3842751395
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006196
Ambient temperature (°C)
14.61
Seeing (arcsec)
0.7
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 70.8370 70.8960 63.3000 63.4000
A0-J2 119.2070 119.2470 43.3000 43.5000
A0-K0 127.2540 127.2620 28.7090 28.8500
G1-J2 57.8740 57.8710 18.7000 18.8000
G1-K0 79.7680 79.7690 358.4730 358.5710
J2-K0 32.3980 32.4260 320.3000 320.3760
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 60877.3839788432
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 70.837
HIERARCH ESO ISS PBL12 END 70.896
HIERARCH ESO ISS PBLA12 START 63.3
HIERARCH ESO ISS PBLA12 END 63.4
HIERARCH ESO ISS PBL13 START 119.207
HIERARCH ESO ISS PBL13 END 119.247
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.5
HIERARCH ESO ISS PBL14 START 127.254
HIERARCH ESO ISS PBL14 END 127.262
HIERARCH ESO ISS PBLA14 START 28.709
HIERARCH ESO ISS PBLA14 END 28.85
HIERARCH ESO ISS PBL23 START 57.874
HIERARCH ESO ISS PBL23 END 57.871
HIERARCH ESO ISS PBLA23 START 18.7
HIERARCH ESO ISS PBLA23 END 18.8
HIERARCH ESO ISS PBL24 START 79.768
HIERARCH ESO ISS PBL24 END 79.769
HIERARCH ESO ISS PBLA24 START 358.473
HIERARCH ESO ISS PBLA24 END 358.571
HIERARCH ESO ISS PBL34 START 32.398
HIERARCH ESO ISS PBL34 END 32.426
HIERARCH ESO ISS PBLA34 START 320.3
HIERARCH ESO ISS PBLA34 END 320.376
HIERARCH ESO ISS AMBI TAU0 START 0.006196
HIERARCH ESO ISS AMBI TAU0 END 0.006196
HIERARCH ESO ISS AMBI TEMP 14.61
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7