Exposure
ID
PIONI.2025-12-03T04:22:13.457_1
Header ID
PIONI.2025-12-03T04:22:13.457
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 04:22:13.458
UTC End
2025-12-03 04:22:39.058
MJD Start
61012.1821002038
MJD End
61012.182396500095
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005129
Ambient temperature (°C)
14.12
Seeing (arcsec)
0.8
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 90.2680 90.2840 113.5000 113.5000
A0-J2 124.9810 125.0670 92.6000 92.6000
A0-K0 117.9420 118.0650 71.1690 71.1900
G1-J2 51.9470 52.0030 54.1000 54.2000
G1-K0 79.5560 79.5970 21.2790 21.3550
J2-K0 45.6570 45.6440 343.1590 343.2130
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 61012.1821002038
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 90.268
HIERARCH ESO ISS PBL12 END 90.284
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 124.981
HIERARCH ESO ISS PBL13 END 125.067
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 117.942
HIERARCH ESO ISS PBL14 END 118.065
HIERARCH ESO ISS PBLA14 START 71.169
HIERARCH ESO ISS PBLA14 END 71.19
HIERARCH ESO ISS PBL23 START 51.947
HIERARCH ESO ISS PBL23 END 52.003
HIERARCH ESO ISS PBLA23 START 54.1
HIERARCH ESO ISS PBLA23 END 54.2
HIERARCH ESO ISS PBL24 START 79.556
HIERARCH ESO ISS PBL24 END 79.597
HIERARCH ESO ISS PBLA24 START 21.279
HIERARCH ESO ISS PBLA24 END 21.355
HIERARCH ESO ISS PBL34 START 45.657
HIERARCH ESO ISS PBL34 END 45.644
HIERARCH ESO ISS PBLA34 START 343.159
HIERARCH ESO ISS PBLA34 END 343.213
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 0.84