Exposure
ID
PIONI.2025-07-21T08:02:21.627_1
Header ID
PIONI.2025-07-21T08:02:21.627
Date updated
2025-07-21 08:10:40 UTC+0000
Release date
2026-07-21 08:10:40 UTC+0000
UTC Start
2025-07-21 08:02:21.627
UTC End
2025-07-21 08:02:47.227
MJD Start
60877.3349725292
MJD End
60877.335268825496
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003125
Ambient temperature (°C)
14.69
Seeing (arcsec)
0.86
Observation
ID
68899
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
51262
Name
HIP115830
RA
351.990228
DEC
6.37875
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 88.9750 88.9360 112.8000 112.8000
A0-J2 129.2020 129.2090 92.7000 92.7000
A0-K0 125.0270 125.0930 73.7660 73.7580
G1-J2 54.8560 54.9000 59.0000 59.0000
G1-K0 79.1050 79.1600 28.7040 28.7590
J2-K0 42.0890 42.0750 347.6290 347.6960
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 60877.3349725292
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP115830
RA 351.990228
DEC 6.37875
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 88.975
HIERARCH ESO ISS PBL12 END 88.936
HIERARCH ESO ISS PBLA12 START 112.8
HIERARCH ESO ISS PBLA12 END 112.8
HIERARCH ESO ISS PBL13 START 129.202
HIERARCH ESO ISS PBL13 END 129.209
HIERARCH ESO ISS PBLA13 START 92.7
HIERARCH ESO ISS PBLA13 END 92.7
HIERARCH ESO ISS PBL14 START 125.027
HIERARCH ESO ISS PBL14 END 125.093
HIERARCH ESO ISS PBLA14 START 73.766
HIERARCH ESO ISS PBLA14 END 73.758
HIERARCH ESO ISS PBL23 START 54.856
HIERARCH ESO ISS PBL23 END 54.9
HIERARCH ESO ISS PBLA23 START 59.0
HIERARCH ESO ISS PBLA23 END 59.0
HIERARCH ESO ISS PBL24 START 79.105
HIERARCH ESO ISS PBL24 END 79.16
HIERARCH ESO ISS PBLA24 START 28.704
HIERARCH ESO ISS PBLA24 END 28.759
HIERARCH ESO ISS PBL34 START 42.089
HIERARCH ESO ISS PBL34 END 42.075
HIERARCH ESO ISS PBLA34 START 347.629
HIERARCH ESO ISS PBLA34 END 347.696
HIERARCH ESO ISS AMBI TAU0 START 0.003125
HIERARCH ESO ISS AMBI TAU0 END 0.003125
HIERARCH ESO ISS AMBI TEMP 14.69
HIERARCH ESO ISS AMBI FWHM START 0.86
HIERARCH ESO ISS AMBI FWHM END 0.86