Exposure
ID
PIONI.2025-07-21T08:17:18.031_1
Header ID
PIONI.2025-07-21T08:17:18.031
Date updated
2025-07-21 08:25:49 UTC+0000
Release date
2025-07-21 08:17:18 UTC+0000
UTC Start
2025-07-21 08:17:18.031
UTC End
2025-07-21 08:17:43.631
MJD Start
60877.3453475833
MJD End
60877.3456438796
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0053285
Ambient temperature (°C)
14.7
Seeing (arcsec)
0.595
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 68.9300 68.9970 62.8000 63.0000
A0-J2 117.0530 117.1000 42.0000 42.1000
A0-K0 126.5370 126.5480 26.9510 27.0920
G1-J2 58.1000 58.0980 16.9000 17.1000
G1-K0 81.4170 81.4190 357.2070 357.3030
J2-K0 33.1560 33.1840 320.9340 321.0050
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 60877.3453475833
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 68.93
HIERARCH ESO ISS PBL12 END 68.997
HIERARCH ESO ISS PBLA12 START 62.8
HIERARCH ESO ISS PBLA12 END 63.0
HIERARCH ESO ISS PBL13 START 117.053
HIERARCH ESO ISS PBL13 END 117.1
HIERARCH ESO ISS PBLA13 START 42.0
HIERARCH ESO ISS PBLA13 END 42.1
HIERARCH ESO ISS PBL14 START 126.537
HIERARCH ESO ISS PBL14 END 126.548
HIERARCH ESO ISS PBLA14 START 26.951
HIERARCH ESO ISS PBLA14 END 27.092
HIERARCH ESO ISS PBL23 START 58.1
HIERARCH ESO ISS PBL23 END 58.098
HIERARCH ESO ISS PBLA23 START 16.9
HIERARCH ESO ISS PBLA23 END 17.1
HIERARCH ESO ISS PBL24 START 81.417
HIERARCH ESO ISS PBL24 END 81.419
HIERARCH ESO ISS PBLA24 START 357.207
HIERARCH ESO ISS PBLA24 END 357.303
HIERARCH ESO ISS PBL34 START 33.156
HIERARCH ESO ISS PBL34 END 33.184
HIERARCH ESO ISS PBLA34 START 320.934
HIERARCH ESO ISS PBLA34 END 321.005
HIERARCH ESO ISS AMBI TAU0 START 0.005726
HIERARCH ESO ISS AMBI TAU0 END 0.004931
HIERARCH ESO ISS AMBI TEMP 14.7
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.6