Exposure
ID
PIONI.2025-07-21T07:43:21.757_1
Header ID
PIONI.2025-07-21T07:43:21.757
Date updated
2025-07-21 07:50:39 UTC+0000
Release date
2026-07-21 07:50:39 UTC+0000
UTC Start
2025-07-21 07:43:21.757
UTC End
2025-07-21 07:43:47.357
MJD Start
60877.3217796003
MJD End
60877.3220758966
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006226
Ambient temperature (°C)
14.76
Seeing (arcsec)
0.55
Observation
ID
68899
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
51262
Name
HIP115830
RA
351.990228
DEC
6.37875
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 89.9780 89.9550 113.0000 113.0000
A0-J2 128.5210 128.5560 93.3000 93.3000
A0-K0 122.4670 122.5600 73.9640 73.9590
G1-J2 53.3410 53.3930 58.5000 58.6000
G1-K0 77.3560 77.4110 26.8110 26.8750
J2-K0 42.5480 42.5330 345.5580 345.6210
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 60877.3217796003
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP115830
RA 351.990228
DEC 6.37875
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 89.978
HIERARCH ESO ISS PBL12 END 89.955
HIERARCH ESO ISS PBLA12 START 113.0
HIERARCH ESO ISS PBLA12 END 113.0
HIERARCH ESO ISS PBL13 START 128.521
HIERARCH ESO ISS PBL13 END 128.556
HIERARCH ESO ISS PBLA13 START 93.3
HIERARCH ESO ISS PBLA13 END 93.3
HIERARCH ESO ISS PBL14 START 122.467
HIERARCH ESO ISS PBL14 END 122.56
HIERARCH ESO ISS PBLA14 START 73.964
HIERARCH ESO ISS PBLA14 END 73.959
HIERARCH ESO ISS PBL23 START 53.341
HIERARCH ESO ISS PBL23 END 53.393
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 77.356
HIERARCH ESO ISS PBL24 END 77.411
HIERARCH ESO ISS PBLA24 START 26.811
HIERARCH ESO ISS PBLA24 END 26.875
HIERARCH ESO ISS PBL34 START 42.548
HIERARCH ESO ISS PBL34 END 42.533
HIERARCH ESO ISS PBLA34 START 345.558
HIERARCH ESO ISS PBLA34 END 345.621
HIERARCH ESO ISS AMBI TAU0 START 0.006226
HIERARCH ESO ISS AMBI TAU0 END 0.006226
HIERARCH ESO ISS AMBI TEMP 14.76
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.57