Exposure
ID
PIONI.2025-05-31T03:22:56.050_1
Header ID
PIONI.2025-05-31T03:22:56.050
Date updated
2025-05-31 03:31:13 UTC+0000
Release date
2025-05-31 03:22:56 UTC+0000
UTC Start
2025-05-31 03:22:56.050
UTC End
2025-05-31 03:23:21.650
MJD Start
60826.1409264989
MJD End
60826.141222795195
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.009506500000000001
Ambient temperature (°C)
15.18
Seeing (arcsec)
0.315
Observation
ID
67665
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
50318
Name
HD166642
RA
272.920231
DEC
-2.72647
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 48.3850 48.3930 143.1000 143.1000
A0-J2 94.6620 94.8920 91.0000 91.0000
A0-J6 143.4010 143.4170 3.7450 3.8470
B5-J2 75.3540 75.5430 60.5000 60.6000
B5-J6 182.8460 182.8220 353.8190 353.8960
J2-J6 167.9480 167.9440 329.4890 329.4980
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 60826.1409264989
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD166642
RA 272.920231
DEC -2.72647
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.385
HIERARCH ESO ISS PBL12 END 48.393
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 94.662
HIERARCH ESO ISS PBL13 END 94.892
HIERARCH ESO ISS PBLA13 START 91.0
HIERARCH ESO ISS PBLA13 END 91.0
HIERARCH ESO ISS PBL14 START 143.401
HIERARCH ESO ISS PBL14 END 143.417
HIERARCH ESO ISS PBLA14 START 3.745
HIERARCH ESO ISS PBLA14 END 3.847
HIERARCH ESO ISS PBL23 START 75.354
HIERARCH ESO ISS PBL23 END 75.543
HIERARCH ESO ISS PBLA23 START 60.5
HIERARCH ESO ISS PBLA23 END 60.6
HIERARCH ESO ISS PBL24 START 182.846
HIERARCH ESO ISS PBL24 END 182.822
HIERARCH ESO ISS PBLA24 START 353.819
HIERARCH ESO ISS PBLA24 END 353.896
HIERARCH ESO ISS PBL34 START 167.948
HIERARCH ESO ISS PBL34 END 167.944
HIERARCH ESO ISS PBLA34 START 329.489
HIERARCH ESO ISS PBLA34 END 329.498
HIERARCH ESO ISS AMBI TAU0 START 0.008487
HIERARCH ESO ISS AMBI TAU0 END 0.010526
HIERARCH ESO ISS AMBI TEMP 15.18
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.3