Exposure
ID
PIONI.2025-07-21T07:41:29.066_1
Header ID
PIONI.2025-07-21T07:41:29.066
Date updated
2025-07-21 07:45:50 UTC+0000
Release date
2026-07-21 07:45:49 UTC+0000
UTC Start
2025-07-21 07:41:29.066
UTC End
2025-07-21 07:41:54.666
MJD Start
60877.3204753022
MJD End
60877.3207715985
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006511
Ambient temperature (°C)
14.72
Seeing (arcsec)
0.545
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 90.0490 90.0270 113.1000 113.1000
A0-J2 128.4060 128.4430 93.3000 93.3000
A0-K0 122.1710 122.2660 73.9810 73.9770
G1-J2 53.1770 53.2300 58.5000 58.5000
G1-K0 77.1830 77.2380 26.6130 26.6770
J2-K0 42.5970 42.5810 345.3640 345.4270
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 60877.3204753022
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 90.049
HIERARCH ESO ISS PBL12 END 90.027
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.1
HIERARCH ESO ISS PBL13 START 128.406
HIERARCH ESO ISS PBL13 END 128.443
HIERARCH ESO ISS PBLA13 START 93.3
HIERARCH ESO ISS PBLA13 END 93.3
HIERARCH ESO ISS PBL14 START 122.171
HIERARCH ESO ISS PBL14 END 122.266
HIERARCH ESO ISS PBLA14 START 73.981
HIERARCH ESO ISS PBLA14 END 73.977
HIERARCH ESO ISS PBL23 START 53.177
HIERARCH ESO ISS PBL23 END 53.23
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 77.183
HIERARCH ESO ISS PBL24 END 77.238
HIERARCH ESO ISS PBLA24 START 26.613
HIERARCH ESO ISS PBLA24 END 26.677
HIERARCH ESO ISS PBL34 START 42.597
HIERARCH ESO ISS PBL34 END 42.581
HIERARCH ESO ISS PBLA34 START 345.364
HIERARCH ESO ISS PBLA34 END 345.427
HIERARCH ESO ISS AMBI TAU0 START 0.006511
HIERARCH ESO ISS AMBI TAU0 END 0.006511
HIERARCH ESO ISS AMBI TEMP 14.72
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.53