Exposure
ID
PIONI.2025-12-03T03:56:19.450_1
Header ID
PIONI.2025-12-03T03:56:19.450
Date updated
2025-12-03 04:00:50 UTC+0000
Release date
2026-12-03 04:00:50 UTC+0000
UTC Start
2025-12-03 03:56:19.450
UTC End
2025-12-03 03:56:45.050
MJD Start
61012.1641140073
MJD End
61012.164410303594
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0048145
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.765
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 88.4600 88.5050 111.6000 111.6000
A0-J2 122.7690 122.8720 88.4000 88.4000
A0-K0 119.3390 119.4460 65.4150 65.4730
G1-J2 54.2240 54.2640 48.3000 48.4000
G1-K0 86.3340 86.3550 17.7210 17.7990
J2-K0 48.2950 48.2900 342.9010 342.9520
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 61012.1641140073
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 88.46
HIERARCH ESO ISS PBL12 END 88.505
HIERARCH ESO ISS PBLA12 START 111.6
HIERARCH ESO ISS PBLA12 END 111.6
HIERARCH ESO ISS PBL13 START 122.769
HIERARCH ESO ISS PBL13 END 122.872
HIERARCH ESO ISS PBLA13 START 88.4
HIERARCH ESO ISS PBLA13 END 88.4
HIERARCH ESO ISS PBL14 START 119.339
HIERARCH ESO ISS PBL14 END 119.446
HIERARCH ESO ISS PBLA14 START 65.415
HIERARCH ESO ISS PBLA14 END 65.473
HIERARCH ESO ISS PBL23 START 54.224
HIERARCH ESO ISS PBL23 END 54.264
HIERARCH ESO ISS PBLA23 START 48.3
HIERARCH ESO ISS PBLA23 END 48.4
HIERARCH ESO ISS PBL24 START 86.334
HIERARCH ESO ISS PBL24 END 86.355
HIERARCH ESO ISS PBLA24 START 17.721
HIERARCH ESO ISS PBLA24 END 17.799
HIERARCH ESO ISS PBL34 START 48.295
HIERARCH ESO ISS PBL34 END 48.29
HIERARCH ESO ISS PBLA34 START 342.901
HIERARCH ESO ISS PBLA34 END 342.952
HIERARCH ESO ISS AMBI TAU0 START 0.005059
HIERARCH ESO ISS AMBI TAU0 END 0.00457
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.8