Exposure
ID
PIONI.2025-07-21T08:49:58.750_1
Header ID
PIONI.2025-07-21T08:49:58.750
Date updated
2025-07-21 08:55:46 UTC+0000
Release date
2025-07-21 08:49:58 UTC+0000
UTC Start
2025-07-21 08:49:58.750
UTC End
2025-07-21 08:50:24.350
MJD Start
60877.3680410907
MJD End
60877.368337387
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.007218
Ambient temperature (°C)
14.62
Seeing (arcsec)
1.07
Observation
ID
68902
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
51265
Name
HD19801
RA
47.032445
DEC
-61.14972
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 72.5230 72.5880 71.2000 71.4000
A0-J2 119.6380 119.6860 50.3000 50.5000
A0-K0 127.1360 127.1460 34.5740 34.7110
G1-J2 57.9900 57.9870 23.8000 23.9000
G1-K0 81.4260 81.4240 2.4540 2.5480
J2-K0 34.6140 34.6390 324.8470 324.9180
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 60877.3680410907
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD19801
RA 47.032445
DEC -61.14972
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 72.523
HIERARCH ESO ISS PBL12 END 72.588
HIERARCH ESO ISS PBLA12 START 71.2
HIERARCH ESO ISS PBLA12 END 71.4
HIERARCH ESO ISS PBL13 START 119.638
HIERARCH ESO ISS PBL13 END 119.686
HIERARCH ESO ISS PBLA13 START 50.3
HIERARCH ESO ISS PBLA13 END 50.5
HIERARCH ESO ISS PBL14 START 127.136
HIERARCH ESO ISS PBL14 END 127.146
HIERARCH ESO ISS PBLA14 START 34.574
HIERARCH ESO ISS PBLA14 END 34.711
HIERARCH ESO ISS PBL23 START 57.99
HIERARCH ESO ISS PBL23 END 57.987
HIERARCH ESO ISS PBLA23 START 23.8
HIERARCH ESO ISS PBLA23 END 23.9
HIERARCH ESO ISS PBL24 START 81.426
HIERARCH ESO ISS PBL24 END 81.424
HIERARCH ESO ISS PBLA24 START 2.454
HIERARCH ESO ISS PBLA24 END 2.548
HIERARCH ESO ISS PBL34 START 34.614
HIERARCH ESO ISS PBL34 END 34.639
HIERARCH ESO ISS PBLA34 START 324.847
HIERARCH ESO ISS PBLA34 END 324.918
HIERARCH ESO ISS AMBI TAU0 START 0.007218
HIERARCH ESO ISS AMBI TAU0 END 0.007218
HIERARCH ESO ISS AMBI TEMP 14.62
HIERARCH ESO ISS AMBI FWHM START 1.07
HIERARCH ESO ISS AMBI FWHM END 1.07