Exposure
ID
PIONI.2025-05-31T03:23:33.864_1
Header ID
PIONI.2025-05-31T03:23:33.864
Date updated
2025-05-31 03:31:13 UTC+0000
Release date
2025-05-31 03:23:33 UTC+0000
UTC Start
2025-05-31 03:23:33.864
UTC End
2025-05-31 03:23:59.464
MJD Start
60826.1413641665
MJD End
60826.141660462796
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.010526
Ambient temperature (°C)
15.2
Seeing (arcsec)
0.3
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 48.3940 48.4020 143.1000 143.1000
A0-J2 94.9050 95.1350 91.0000 91.0000
A0-J6 143.4180 143.4340 3.8520 3.9540
B5-J2 75.5530 75.7420 60.6000 60.7000
B5-J6 182.8200 182.7970 353.9000 353.9770
J2-J6 167.9440 167.9400 329.4990 329.5080
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 60826.1413641665
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 48.394
HIERARCH ESO ISS PBL12 END 48.402
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 94.905
HIERARCH ESO ISS PBL13 END 95.135
HIERARCH ESO ISS PBLA13 START 91.0
HIERARCH ESO ISS PBLA13 END 91.0
HIERARCH ESO ISS PBL14 START 143.418
HIERARCH ESO ISS PBL14 END 143.434
HIERARCH ESO ISS PBLA14 START 3.852
HIERARCH ESO ISS PBLA14 END 3.954
HIERARCH ESO ISS PBL23 START 75.553
HIERARCH ESO ISS PBL23 END 75.742
HIERARCH ESO ISS PBLA23 START 60.6
HIERARCH ESO ISS PBLA23 END 60.7
HIERARCH ESO ISS PBL24 START 182.82
HIERARCH ESO ISS PBL24 END 182.797
HIERARCH ESO ISS PBLA24 START 353.9
HIERARCH ESO ISS PBLA24 END 353.977
HIERARCH ESO ISS PBL34 START 167.944
HIERARCH ESO ISS PBL34 END 167.94
HIERARCH ESO ISS PBLA34 START 329.499
HIERARCH ESO ISS PBLA34 END 329.508
HIERARCH ESO ISS AMBI TAU0 START 0.010526
HIERARCH ESO ISS AMBI TAU0 END 0.010526
HIERARCH ESO ISS AMBI TEMP 15.2
HIERARCH ESO ISS AMBI FWHM START 0.3
HIERARCH ESO ISS AMBI FWHM END 0.3