Exposure
ID
PIONI.2025-05-31T05:50:34.939_1
Header ID
PIONI.2025-05-31T05:50:34.939
Date updated
2025-05-31 06:12:46 UTC+0000
Release date
2025-05-31 05:50:34 UTC+0000
UTC Start
2025-05-31 05:50:34.939
UTC End
2025-05-31 05:51:13.339
MJD Start
60826.2434599437
MJD End
60826.24390438814
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.019891
Ambient temperature (°C)
14.85
Seeing (arcsec)
0.305
Observation
ID
67676
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
50329
Name
HD189398
RA
300.128325
DEC
-19.85707
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 47.2590 47.2830 141.9000 141.9000
A0-J2 109.7280 109.9540 80.3000 80.4000
A0-J6 164.4300 164.4520 9.0120 9.1300
B5-J2 96.5760 96.7320 54.9000 55.0000
B5-J6 199.5920 199.5900 359.0140 359.1130
J2-J6 165.8920 165.9350 330.2170 330.2600
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 60826.2434599437
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD189398
RA 300.128325
DEC -19.85707
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 47.259
HIERARCH ESO ISS PBL12 END 47.283
HIERARCH ESO ISS PBLA12 START 141.9
HIERARCH ESO ISS PBLA12 END 141.9
HIERARCH ESO ISS PBL13 START 109.728
HIERARCH ESO ISS PBL13 END 109.954
HIERARCH ESO ISS PBLA13 START 80.3
HIERARCH ESO ISS PBLA13 END 80.4
HIERARCH ESO ISS PBL14 START 164.43
HIERARCH ESO ISS PBL14 END 164.452
HIERARCH ESO ISS PBLA14 START 9.012
HIERARCH ESO ISS PBLA14 END 9.13
HIERARCH ESO ISS PBL23 START 96.576
HIERARCH ESO ISS PBL23 END 96.732
HIERARCH ESO ISS PBLA23 START 54.9
HIERARCH ESO ISS PBLA23 END 55.0
HIERARCH ESO ISS PBL24 START 199.592
HIERARCH ESO ISS PBL24 END 199.59
HIERARCH ESO ISS PBLA24 START 359.014
HIERARCH ESO ISS PBLA24 END 359.113
HIERARCH ESO ISS PBL34 START 165.892
HIERARCH ESO ISS PBL34 END 165.935
HIERARCH ESO ISS PBLA34 START 330.217
HIERARCH ESO ISS PBLA34 END 330.26
HIERARCH ESO ISS AMBI TAU0 START 0.019891
HIERARCH ESO ISS AMBI TAU0 END 0.019891
HIERARCH ESO ISS AMBI TEMP 14.85
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.31