Exposure
ID
PIONI.2025-07-21T02:56:36.272_1
Header ID
PIONI.2025-07-21T02:56:36.272
Date updated
2025-07-21 03:05:52 UTC+0000
Release date
2026-07-21 03:05:51 UTC+0000
UTC Start
2025-07-21 02:56:36.272
UTC End
2025-07-21 02:57:01.872
MJD Start
60877.1226420375
MJD End
60877.1229383338
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002602
Ambient temperature (°C)
15.16
Seeing (arcsec)
0.64
Observation
ID
68881
Category
science
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
51245
Name
HIP79666
RA
243.867727
DEC
18.80761
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 65.6110 65.4610 105.0000 105.0000
A0-J2 112.9520 112.7970 82.3000 82.2000
A0-K0 124.7630 124.6970 66.5720 66.5100
G1-J2 58.2270 58.2260 56.5000 56.4000
G1-K0 83.9250 83.9760 37.5020 37.4990
J2-K0 34.5240 34.5300 4.2250 4.3180
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.285P.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60877.1226420375
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP79666
RA 243.867727
DEC 18.80761
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 65.611
HIERARCH ESO ISS PBL12 END 65.461
HIERARCH ESO ISS PBLA12 START 105.0
HIERARCH ESO ISS PBLA12 END 105.0
HIERARCH ESO ISS PBL13 START 112.952
HIERARCH ESO ISS PBL13 END 112.797
HIERARCH ESO ISS PBLA13 START 82.3
HIERARCH ESO ISS PBLA13 END 82.2
HIERARCH ESO ISS PBL14 START 124.763
HIERARCH ESO ISS PBL14 END 124.697
HIERARCH ESO ISS PBLA14 START 66.572
HIERARCH ESO ISS PBLA14 END 66.51
HIERARCH ESO ISS PBL23 START 58.227
HIERARCH ESO ISS PBL23 END 58.226
HIERARCH ESO ISS PBLA23 START 56.5
HIERARCH ESO ISS PBLA23 END 56.4
HIERARCH ESO ISS PBL24 START 83.925
HIERARCH ESO ISS PBL24 END 83.976
HIERARCH ESO ISS PBLA24 START 37.502
HIERARCH ESO ISS PBLA24 END 37.499
HIERARCH ESO ISS PBL34 START 34.524
HIERARCH ESO ISS PBL34 END 34.53
HIERARCH ESO ISS PBLA34 START 4.225
HIERARCH ESO ISS PBLA34 END 4.318
HIERARCH ESO ISS AMBI TAU0 START 0.002602
HIERARCH ESO ISS AMBI TAU0 END 0.002602
HIERARCH ESO ISS AMBI TEMP 15.16
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64