Exposure
ID
PIONI.2025-05-31T03:24:49.480_1
Header ID
PIONI.2025-05-31T03:24:49.480
Date updated
2025-05-31 03:31:13 UTC+0000
Release date
2025-05-31 03:24:49 UTC+0000
UTC Start
2025-05-31 03:24:49.480
UTC End
2025-05-31 03:25:15.080
MJD Start
60826.1422393499
MJD End
60826.1425356462
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.009982000000000001
Ambient temperature (°C)
15.21
Seeing (arcsec)
0.28
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 48.4100 48.4180 143.1000 143.1000
A0-J2 95.3890 95.6170 91.0000 91.0000
A0-J6 143.4530 143.4700 4.0670 4.1690
B5-J2 75.9510 76.1390 60.8000 60.9000
B5-J6 182.7710 182.7480 354.0630 354.1400
J2-J6 167.9350 167.9300 329.5190 329.5290
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 60826.1422393499
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 48.41
HIERARCH ESO ISS PBL12 END 48.418
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 95.389
HIERARCH ESO ISS PBL13 END 95.617
HIERARCH ESO ISS PBLA13 START 91.0
HIERARCH ESO ISS PBLA13 END 91.0
HIERARCH ESO ISS PBL14 START 143.453
HIERARCH ESO ISS PBL14 END 143.47
HIERARCH ESO ISS PBLA14 START 4.067
HIERARCH ESO ISS PBLA14 END 4.169
HIERARCH ESO ISS PBL23 START 75.951
HIERARCH ESO ISS PBL23 END 76.139
HIERARCH ESO ISS PBLA23 START 60.8
HIERARCH ESO ISS PBLA23 END 60.9
HIERARCH ESO ISS PBL24 START 182.771
HIERARCH ESO ISS PBL24 END 182.748
HIERARCH ESO ISS PBLA24 START 354.063
HIERARCH ESO ISS PBLA24 END 354.14
HIERARCH ESO ISS PBL34 START 167.935
HIERARCH ESO ISS PBL34 END 167.93
HIERARCH ESO ISS PBLA34 START 329.519
HIERARCH ESO ISS PBLA34 END 329.529
HIERARCH ESO ISS AMBI TAU0 START 0.010526
HIERARCH ESO ISS AMBI TAU0 END 0.009438
HIERARCH ESO ISS AMBI TEMP 15.21
HIERARCH ESO ISS AMBI FWHM START 0.28
HIERARCH ESO ISS AMBI FWHM END 0.28