Exposure
ID
PIONI.2025-12-03T03:56:56.892_1
Header ID
PIONI.2025-12-03T03:56:56.892
Date updated
2025-12-03 04:06:01 UTC+0000
Release date
2026-12-03 04:06:01 UTC+0000
UTC Start
2025-12-03 03:56:56.892
UTC End
2025-12-03 03:57:22.492
MJD Start
61012.1645473628
MJD End
61012.1648436591
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00457
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.8
Observation
ID
71956
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
53421
Name
HD_34816
RA
79.89269
DEC
-13.17682
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 88.5060 88.5510 111.6000 111.7000
A0-J2 122.8750 122.9770 88.4000 88.4000
A0-K0 119.4490 119.5550 65.4720 65.5290
G1-J2 54.2650 54.3060 48.4000 48.4000
G1-K0 86.3560 86.3770 17.7990 17.8760
J2-K0 48.2900 48.2860 342.9510 343.0020
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 61012.1645473628
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD_34816
RA 79.89269
DEC -13.17682
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 88.506
HIERARCH ESO ISS PBL12 END 88.551
HIERARCH ESO ISS PBLA12 START 111.6
HIERARCH ESO ISS PBLA12 END 111.7
HIERARCH ESO ISS PBL13 START 122.875
HIERARCH ESO ISS PBL13 END 122.977
HIERARCH ESO ISS PBLA13 START 88.4
HIERARCH ESO ISS PBLA13 END 88.4
HIERARCH ESO ISS PBL14 START 119.449
HIERARCH ESO ISS PBL14 END 119.555
HIERARCH ESO ISS PBLA14 START 65.472
HIERARCH ESO ISS PBLA14 END 65.529
HIERARCH ESO ISS PBL23 START 54.265
HIERARCH ESO ISS PBL23 END 54.306
HIERARCH ESO ISS PBLA23 START 48.4
HIERARCH ESO ISS PBLA23 END 48.4
HIERARCH ESO ISS PBL24 START 86.356
HIERARCH ESO ISS PBL24 END 86.377
HIERARCH ESO ISS PBLA24 START 17.799
HIERARCH ESO ISS PBLA24 END 17.876
HIERARCH ESO ISS PBL34 START 48.29
HIERARCH ESO ISS PBL34 END 48.286
HIERARCH ESO ISS PBLA34 START 342.951
HIERARCH ESO ISS PBLA34 END 343.002
HIERARCH ESO ISS AMBI TAU0 START 0.00457
HIERARCH ESO ISS AMBI TAU0 END 0.00457
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.8