Exposure
ID
PIONI.2025-07-21T07:40:51.371_1
Header ID
PIONI.2025-07-21T07:40:51.371
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 07:40:51.371
UTC End
2025-07-21 07:41:16.971
MJD Start
60877.3200390176
MJD End
60877.320335313896
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006511
Ambient temperature (°C)
14.72
Seeing (arcsec)
0.56
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 90.0720 90.0500 113.1000 113.1000
A0-J2 128.3650 128.4040 93.4000 93.3000
A0-K0 122.0700 122.1660 73.9850 73.9800
G1-J2 53.1210 53.1740 58.5000 58.5000
G1-K0 77.1240 77.1800 26.5440 26.6080
J2-K0 42.6130 42.5970 345.2980 345.3590
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 60877.3200390176
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 90.072
HIERARCH ESO ISS PBL12 END 90.05
HIERARCH ESO ISS PBLA12 START 113.1
HIERARCH ESO ISS PBLA12 END 113.1
HIERARCH ESO ISS PBL13 START 128.365
HIERARCH ESO ISS PBL13 END 128.404
HIERARCH ESO ISS PBLA13 START 93.4
HIERARCH ESO ISS PBLA13 END 93.3
HIERARCH ESO ISS PBL14 START 122.07
HIERARCH ESO ISS PBL14 END 122.166
HIERARCH ESO ISS PBLA14 START 73.985
HIERARCH ESO ISS PBLA14 END 73.98
HIERARCH ESO ISS PBL23 START 53.121
HIERARCH ESO ISS PBL23 END 53.174
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 77.124
HIERARCH ESO ISS PBL24 END 77.18
HIERARCH ESO ISS PBLA24 START 26.544
HIERARCH ESO ISS PBLA24 END 26.608
HIERARCH ESO ISS PBL34 START 42.613
HIERARCH ESO ISS PBL34 END 42.597
HIERARCH ESO ISS PBLA34 START 345.298
HIERARCH ESO ISS PBLA34 END 345.359
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 0.56