Exposure
ID
PIONI.2025-07-21T08:34:41.649_1
Header ID
PIONI.2025-07-21T08:34:41.649
Date updated
2025-07-21 08:40:46 UTC+0000
Release date
2026-07-21 08:40:46 UTC+0000
UTC Start
2025-07-21 08:34:41.649
UTC End
2025-07-21 08:35:07.249
MJD Start
60877.357426492
MJD End
60877.3577227883
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004312
Ambient temperature (°C)
14.86
Seeing (arcsec)
1.11
Observation
ID
68903
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
51266
Name
HIP18401
RA
59.015015
DEC
-63.46352
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 67.1200 67.1770 52.8000 52.9000
A0-J2 116.7640 116.8000 33.3000 33.4000
A0-K0 126.7770 126.7840 19.6620 19.8050
G1-J2 57.9850 57.9840 10.6000 10.7000
G1-K0 79.5050 79.5120 352.2120 352.3110
J2-K0 30.5340 30.5660 315.4820 315.5570
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 60877.357426492
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP18401
RA 59.015015
DEC -63.46352
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 67.12
HIERARCH ESO ISS PBL12 END 67.177
HIERARCH ESO ISS PBLA12 START 52.8
HIERARCH ESO ISS PBLA12 END 52.9
HIERARCH ESO ISS PBL13 START 116.764
HIERARCH ESO ISS PBL13 END 116.8
HIERARCH ESO ISS PBLA13 START 33.3
HIERARCH ESO ISS PBLA13 END 33.4
HIERARCH ESO ISS PBL14 START 126.777
HIERARCH ESO ISS PBL14 END 126.784
HIERARCH ESO ISS PBLA14 START 19.662
HIERARCH ESO ISS PBLA14 END 19.805
HIERARCH ESO ISS PBL23 START 57.985
HIERARCH ESO ISS PBL23 END 57.984
HIERARCH ESO ISS PBLA23 START 10.6
HIERARCH ESO ISS PBLA23 END 10.7
HIERARCH ESO ISS PBL24 START 79.505
HIERARCH ESO ISS PBL24 END 79.512
HIERARCH ESO ISS PBLA24 START 352.212
HIERARCH ESO ISS PBLA24 END 352.311
HIERARCH ESO ISS PBL34 START 30.534
HIERARCH ESO ISS PBL34 END 30.566
HIERARCH ESO ISS PBLA34 START 315.482
HIERARCH ESO ISS PBLA34 END 315.557
HIERARCH ESO ISS AMBI TAU0 START 0.004312
HIERARCH ESO ISS AMBI TAU0 END 0.004312
HIERARCH ESO ISS AMBI TEMP 14.86
HIERARCH ESO ISS AMBI FWHM START 1.11
HIERARCH ESO ISS AMBI FWHM END 1.11