Exposure
ID
PIONI.2025-03-25T08:49:05.030_1
Header ID
PIONI.2025-03-25T08:49:05.030
Date updated
2025-03-25 08:55:41 UTC+0000
Release date
2026-03-25 08:55:41 UTC+0000
UTC Start
2025-03-25 08:49:05.031
UTC End
2025-03-25 08:49:30.631
MJD Start
60759.3674193346
MJD End
60759.3677156309
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003251
Ambient temperature (°C)
13.95
Seeing (arcsec)
0.84
Observation
ID
65889
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
49044
Name
HIP77853
RA
238.455831
DEC
-16.72854
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 89.4780 89.4470 117.9000 117.9000
A0-J2 128.4720 128.4370 94.6000 94.6000
A0-K0 127.8010 127.7850 72.9500 72.9910
G1-J2 58.2280 58.2270 57.2000 57.3000
G1-K0 90.2260 90.2340 28.5150 28.5680
J2-K0 48.1080 48.1050 352.9820 353.0470
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 60759.3674193346
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP77853
RA 238.455831
DEC -16.72854
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 89.478
HIERARCH ESO ISS PBL12 END 89.447
HIERARCH ESO ISS PBLA12 START 117.9
HIERARCH ESO ISS PBLA12 END 117.9
HIERARCH ESO ISS PBL13 START 128.472
HIERARCH ESO ISS PBL13 END 128.437
HIERARCH ESO ISS PBLA13 START 94.6
HIERARCH ESO ISS PBLA13 END 94.6
HIERARCH ESO ISS PBL14 START 127.801
HIERARCH ESO ISS PBL14 END 127.785
HIERARCH ESO ISS PBLA14 START 72.95
HIERARCH ESO ISS PBLA14 END 72.991
HIERARCH ESO ISS PBL23 START 58.228
HIERARCH ESO ISS PBL23 END 58.227
HIERARCH ESO ISS PBLA23 START 57.2
HIERARCH ESO ISS PBLA23 END 57.3
HIERARCH ESO ISS PBL24 START 90.226
HIERARCH ESO ISS PBL24 END 90.234
HIERARCH ESO ISS PBLA24 START 28.515
HIERARCH ESO ISS PBLA24 END 28.568
HIERARCH ESO ISS PBL34 START 48.108
HIERARCH ESO ISS PBL34 END 48.105
HIERARCH ESO ISS PBLA34 START 352.982
HIERARCH ESO ISS PBLA34 END 353.047
HIERARCH ESO ISS AMBI TAU0 START 0.003251
HIERARCH ESO ISS AMBI TAU0 END 0.003251
HIERARCH ESO ISS AMBI TEMP 13.95
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.84