Exposure
ID
PIONI.2025-05-31T05:21:40.894_1
Header ID
PIONI.2025-05-31T05:21:40.894
Date updated
2025-05-31 05:26:40 UTC+0000
Release date
2025-05-31 05:21:40 UTC+0000
UTC Start
2025-05-31 05:21:40.895
UTC End
2025-05-31 05:22:19.295
MJD Start
60826.2233899832
MJD End
60826.22383442764
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.013653499999999999
Ambient temperature (°C)
15.27
Seeing (arcsec)
0.405
Observation
ID
67673
Category
calibrator
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
50326
Name
HD187803
RA
298.179436
DEC
-24.9949
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 45.4710 45.5070 140.0000 140.0000
A0-J2 105.1380 105.3720 74.2000 74.4000
A0-J6 167.1950 167.2050 5.8040 5.9220
B5-J2 95.9000 96.0400 48.6000 48.8000
B5-J6 201.5480 201.5460 356.4970 356.5940
J2-J6 161.5080 161.5850 328.5510 328.5920
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.285P.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60826.2233899832
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD187803
RA 298.179436
DEC -24.9949
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 45.471
HIERARCH ESO ISS PBL12 END 45.507
HIERARCH ESO ISS PBLA12 START 140.0
HIERARCH ESO ISS PBLA12 END 140.0
HIERARCH ESO ISS PBL13 START 105.138
HIERARCH ESO ISS PBL13 END 105.372
HIERARCH ESO ISS PBLA13 START 74.2
HIERARCH ESO ISS PBLA13 END 74.4
HIERARCH ESO ISS PBL14 START 167.195
HIERARCH ESO ISS PBL14 END 167.205
HIERARCH ESO ISS PBLA14 START 5.804
HIERARCH ESO ISS PBLA14 END 5.922
HIERARCH ESO ISS PBL23 START 95.9
HIERARCH ESO ISS PBL23 END 96.04
HIERARCH ESO ISS PBLA23 START 48.6
HIERARCH ESO ISS PBLA23 END 48.8
HIERARCH ESO ISS PBL24 START 201.548
HIERARCH ESO ISS PBL24 END 201.546
HIERARCH ESO ISS PBLA24 START 356.497
HIERARCH ESO ISS PBLA24 END 356.594
HIERARCH ESO ISS PBL34 START 161.508
HIERARCH ESO ISS PBL34 END 161.585
HIERARCH ESO ISS PBLA34 START 328.551
HIERARCH ESO ISS PBLA34 END 328.592
HIERARCH ESO ISS AMBI TAU0 START 0.013662
HIERARCH ESO ISS AMBI TAU0 END 0.013645
HIERARCH ESO ISS AMBI TEMP 15.27
HIERARCH ESO ISS AMBI FWHM START 0.35
HIERARCH ESO ISS AMBI FWHM END 0.46