Exposure
ID
PIONI.2025-12-03T04:21:35.651_1
Header ID
PIONI.2025-12-03T04:21:35.651
Date updated
2025-12-03 04:31:11 UTC+0000
Release date
2026-12-03 04:31:11 UTC+0000
UTC Start
2025-12-03 04:21:35.651
UTC End
2025-12-03 04:22:01.251
MJD Start
61012.1816626326
MJD End
61012.1819589289
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005129
Ambient temperature (°C)
14.12
Seeing (arcsec)
0.76
Observation
ID
71959
Category
science
Program ID
116.292S.001
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
MAHY / SANA / LE BOUQUIN / FROST / BORDIER
Target
ID
53424
Name
del Ori
RA
83.000524
DEC
-0.29906
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 90.2510 90.2680 113.6000 113.5000
A0-J2 124.8890 124.9760 92.6000 92.6000
A0-K0 117.8110 117.9350 71.1460 71.1680
G1-J2 51.8880 51.9440 54.1000 54.1000
G1-K0 79.5130 79.5540 21.1980 21.2740
J2-K0 45.6700 45.6580 343.1030 343.1560
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 61012.1816626326
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME del Ori
RA 83.000524
DEC -0.29906
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 90.251
HIERARCH ESO ISS PBL12 END 90.268
HIERARCH ESO ISS PBLA12 START 113.6
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 124.889
HIERARCH ESO ISS PBL13 END 124.976
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 117.811
HIERARCH ESO ISS PBL14 END 117.935
HIERARCH ESO ISS PBLA14 START 71.146
HIERARCH ESO ISS PBLA14 END 71.168
HIERARCH ESO ISS PBL23 START 51.888
HIERARCH ESO ISS PBL23 END 51.944
HIERARCH ESO ISS PBLA23 START 54.1
HIERARCH ESO ISS PBLA23 END 54.1
HIERARCH ESO ISS PBL24 START 79.513
HIERARCH ESO ISS PBL24 END 79.554
HIERARCH ESO ISS PBLA24 START 21.198
HIERARCH ESO ISS PBLA24 END 21.274
HIERARCH ESO ISS PBL34 START 45.67
HIERARCH ESO ISS PBL34 END 45.658
HIERARCH ESO ISS PBLA34 START 343.103
HIERARCH ESO ISS PBLA34 END 343.156
HIERARCH ESO ISS AMBI TAU0 START 0.005129
HIERARCH ESO ISS AMBI TAU0 END 0.005129
HIERARCH ESO ISS AMBI TEMP 14.12
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.76