Exposure
ID
PIONI.2025-12-03T03:58:12.287_1
Header ID
PIONI.2025-12-03T03:58:12.287
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 03:58:12.288
UTC End
2025-12-03 03:58:37.888
MJD Start
61012.1654199949
MJD End
61012.165716291194
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004528
Ambient temperature (°C)
14.14
Seeing (arcsec)
0.79
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 88.6000 88.6440 111.7000 111.7000
A0-J2 123.0890 123.1890 88.5000 88.5000
A0-K0 119.6730 119.7780 65.5930 65.6500
G1-J2 54.3500 54.3900 48.5000 48.6000
G1-K0 86.4010 86.4220 17.9630 18.0400
J2-K0 48.2810 48.2760 343.0590 343.1110
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 61012.1654199949
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 88.6
HIERARCH ESO ISS PBL12 END 88.644
HIERARCH ESO ISS PBLA12 START 111.7
HIERARCH ESO ISS PBLA12 END 111.7
HIERARCH ESO ISS PBL13 START 123.089
HIERARCH ESO ISS PBL13 END 123.189
HIERARCH ESO ISS PBLA13 START 88.5
HIERARCH ESO ISS PBLA13 END 88.5
HIERARCH ESO ISS PBL14 START 119.673
HIERARCH ESO ISS PBL14 END 119.778
HIERARCH ESO ISS PBLA14 START 65.593
HIERARCH ESO ISS PBLA14 END 65.65
HIERARCH ESO ISS PBL23 START 54.35
HIERARCH ESO ISS PBL23 END 54.39
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 48.6
HIERARCH ESO ISS PBL24 START 86.401
HIERARCH ESO ISS PBL24 END 86.422
HIERARCH ESO ISS PBLA24 START 17.963
HIERARCH ESO ISS PBLA24 END 18.04
HIERARCH ESO ISS PBL34 START 48.281
HIERARCH ESO ISS PBL34 END 48.276
HIERARCH ESO ISS PBLA34 START 343.059
HIERARCH ESO ISS PBLA34 END 343.111
HIERARCH ESO ISS AMBI TAU0 START 0.004528
HIERARCH ESO ISS AMBI TAU0 END 0.004528
HIERARCH ESO ISS AMBI TEMP 14.14
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79