Exposure
ID
PIONI.2025-11-02T07:27:07.349_1
Header ID
PIONI.2025-11-02T07:27:07.349
Date updated
2025-11-02 07:36:06 UTC+0000
Release date
2026-11-02 07:36:06 UTC+0000
UTC Start
2025-11-02 07:27:07.349
UTC End
2025-11-02 07:28:49.749
MJD Start
60981.3105017198
MJD End
60981.31168690499
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.005508
Ambient temperature (°C)
10.72
Seeing (arcsec)
0.545
Observation
ID
71049
Category
science
Program ID
116.292S.002
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
52729
Name
HD 76556
RA
133.778069
DEC
-47.60752
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 65.8910 66.2260 77.2000 77.6000
A0-J2 108.3520 108.6540 50.6000 51.0000
A0-K0 120.7210 120.8440 31.5120 31.9570
G1-J2 57.6210 57.6370 19.7000 20.1000
G1-K0 88.3460 88.3470 359.2520 359.5330
J2-K0 39.8220 39.9020 328.8820 329.0430
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60981.3105017198
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 76556
RA 133.778069
DEC -47.60752
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 0.002
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 65.891
HIERARCH ESO ISS PBL12 END 66.226
HIERARCH ESO ISS PBLA12 START 77.2
HIERARCH ESO ISS PBLA12 END 77.6
HIERARCH ESO ISS PBL13 START 108.352
HIERARCH ESO ISS PBL13 END 108.654
HIERARCH ESO ISS PBLA13 START 50.6
HIERARCH ESO ISS PBLA13 END 51.0
HIERARCH ESO ISS PBL14 START 120.721
HIERARCH ESO ISS PBL14 END 120.844
HIERARCH ESO ISS PBLA14 START 31.512
HIERARCH ESO ISS PBLA14 END 31.957
HIERARCH ESO ISS PBL23 START 57.621
HIERARCH ESO ISS PBL23 END 57.637
HIERARCH ESO ISS PBLA23 START 19.7
HIERARCH ESO ISS PBLA23 END 20.1
HIERARCH ESO ISS PBL24 START 88.346
HIERARCH ESO ISS PBL24 END 88.347
HIERARCH ESO ISS PBLA24 START 359.252
HIERARCH ESO ISS PBLA24 END 359.533
HIERARCH ESO ISS PBL34 START 39.822
HIERARCH ESO ISS PBL34 END 39.902
HIERARCH ESO ISS PBLA34 START 328.882
HIERARCH ESO ISS PBLA34 END 329.043
HIERARCH ESO ISS AMBI TAU0 START 0.005278
HIERARCH ESO ISS AMBI TAU0 END 0.005738
HIERARCH ESO ISS AMBI TEMP 10.72
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.55