Exposure
ID
PIONI.2025-05-31T02:56:30.510_1
Header ID
PIONI.2025-05-31T02:56:30.510
Date updated
2025-05-31 03:01:15 UTC+0000
Release date
2026-05-31 03:01:15 UTC+0000
UTC Start
2025-05-31 02:56:30.510
UTC End
2025-05-31 02:56:56.110
MJD Start
60826.1225753529
MJD End
60826.1228716492
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006603
Ambient temperature (°C)
15.15
Seeing (arcsec)
0.31
Observation
ID
67662
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
50315
Name
HIP89153
RA
272.930009
DEC
-23.70141
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 43.5410 43.5750 139.2000 139.2000
A0-J2 90.4880 90.6940 67.8000 67.9000
A0-J6 166.2710 166.2700 359.2950 359.3830
B5-J2 86.9730 87.0800 39.5000 39.6000
B5-J6 201.5190 201.5140 351.2890 351.3580
J2-J6 157.5040 157.5800 326.9870 327.0050
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 60826.1225753529
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HIP89153
RA 272.930009
DEC -23.70141
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 43.541
HIERARCH ESO ISS PBL12 END 43.575
HIERARCH ESO ISS PBLA12 START 139.2
HIERARCH ESO ISS PBLA12 END 139.2
HIERARCH ESO ISS PBL13 START 90.488
HIERARCH ESO ISS PBL13 END 90.694
HIERARCH ESO ISS PBLA13 START 67.8
HIERARCH ESO ISS PBLA13 END 67.9
HIERARCH ESO ISS PBL14 START 166.271
HIERARCH ESO ISS PBL14 END 166.27
HIERARCH ESO ISS PBLA14 START 359.295
HIERARCH ESO ISS PBLA14 END 359.383
HIERARCH ESO ISS PBL23 START 86.973
HIERARCH ESO ISS PBL23 END 87.08
HIERARCH ESO ISS PBLA23 START 39.5
HIERARCH ESO ISS PBLA23 END 39.6
HIERARCH ESO ISS PBL24 START 201.519
HIERARCH ESO ISS PBL24 END 201.514
HIERARCH ESO ISS PBLA24 START 351.289
HIERARCH ESO ISS PBLA24 END 351.358
HIERARCH ESO ISS PBL34 START 157.504
HIERARCH ESO ISS PBL34 END 157.58
HIERARCH ESO ISS PBLA34 START 326.987
HIERARCH ESO ISS PBLA34 END 327.005
HIERARCH ESO ISS AMBI TAU0 START 0.006603
HIERARCH ESO ISS AMBI TAU0 END 0.006603
HIERARCH ESO ISS AMBI TEMP 15.15
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.31