Exposure
ID
PIONI.2025-07-21T08:15:25.579_1
Header ID
PIONI.2025-07-21T08:15:25.579
Date updated
2025-07-21 08:25:49 UTC+0000
Release date
2025-07-21 08:15:25 UTC+0000
UTC Start
2025-07-21 08:15:25.578
UTC End
2025-07-21 08:15:51.178
MJD Start
60877.3440460465
MJD End
60877.344342342796
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004078
Ambient temperature (°C)
14.66
Seeing (arcsec)
0.745
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 68.7240 68.7900 62.3000 62.5000
A0-J2 116.9090 116.9550 41.5000 41.6000
A0-K0 126.5030 126.5130 26.5110 26.6520
G1-J2 58.1040 58.1030 16.5000 16.7000
G1-K0 81.4090 81.4110 356.9080 357.0040
J2-K0 33.0670 33.0950 320.7130 320.7850
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 60877.3440460465
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 68.724
HIERARCH ESO ISS PBL12 END 68.79
HIERARCH ESO ISS PBLA12 START 62.3
HIERARCH ESO ISS PBLA12 END 62.5
HIERARCH ESO ISS PBL13 START 116.909
HIERARCH ESO ISS PBL13 END 116.955
HIERARCH ESO ISS PBLA13 START 41.5
HIERARCH ESO ISS PBLA13 END 41.6
HIERARCH ESO ISS PBL14 START 126.503
HIERARCH ESO ISS PBL14 END 126.513
HIERARCH ESO ISS PBLA14 START 26.511
HIERARCH ESO ISS PBLA14 END 26.652
HIERARCH ESO ISS PBL23 START 58.104
HIERARCH ESO ISS PBL23 END 58.103
HIERARCH ESO ISS PBLA23 START 16.5
HIERARCH ESO ISS PBLA23 END 16.7
HIERARCH ESO ISS PBL24 START 81.409
HIERARCH ESO ISS PBL24 END 81.411
HIERARCH ESO ISS PBLA24 START 356.908
HIERARCH ESO ISS PBLA24 END 357.004
HIERARCH ESO ISS PBL34 START 33.067
HIERARCH ESO ISS PBL34 END 33.095
HIERARCH ESO ISS PBLA34 START 320.713
HIERARCH ESO ISS PBLA34 END 320.785
HIERARCH ESO ISS AMBI TAU0 START 0.004078
HIERARCH ESO ISS AMBI TAU0 END 0.004078
HIERARCH ESO ISS AMBI TEMP 14.66
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.8