Exposure
ID
PIONI.2025-10-30T07:08:40.837_1
Header ID
PIONI.2025-10-30T07:08:40.837
Date updated
2025-10-30 07:15:50 UTC+0000
Release date
2026-10-30 07:15:50 UTC+0000
UTC Start
2025-10-30 07:08:40.837
UTC End
2025-10-30 07:10:23.237
MJD Start
60978.2976948693
MJD End
60978.29888005449
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.006091
Ambient temperature (°C)
12.31
Seeing (arcsec)
0.585
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 60.3640 60.7120 70.1000 70.6000
A0-J2 103.5820 103.8700 42.5000 43.0000
A0-K0 118.8510 118.9580 24.2160 24.6760
G1-J2 57.3910 57.4030 13.3000 13.7000
G1-K0 88.2540 88.2640 354.7880 355.0630
J2-K0 38.4470 38.5380 326.4570 326.6000
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 60978.2976948693
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 60.364
HIERARCH ESO ISS PBL12 END 60.712
HIERARCH ESO ISS PBLA12 START 70.1
HIERARCH ESO ISS PBLA12 END 70.6
HIERARCH ESO ISS PBL13 START 103.582
HIERARCH ESO ISS PBL13 END 103.87
HIERARCH ESO ISS PBLA13 START 42.5
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 118.851
HIERARCH ESO ISS PBL14 END 118.958
HIERARCH ESO ISS PBLA14 START 24.216
HIERARCH ESO ISS PBLA14 END 24.676
HIERARCH ESO ISS PBL23 START 57.391
HIERARCH ESO ISS PBL23 END 57.403
HIERARCH ESO ISS PBLA23 START 13.3
HIERARCH ESO ISS PBLA23 END 13.7
HIERARCH ESO ISS PBL24 START 88.254
HIERARCH ESO ISS PBL24 END 88.264
HIERARCH ESO ISS PBLA24 START 354.788
HIERARCH ESO ISS PBLA24 END 355.063
HIERARCH ESO ISS PBL34 START 38.447
HIERARCH ESO ISS PBL34 END 38.538
HIERARCH ESO ISS PBLA34 START 326.457
HIERARCH ESO ISS PBLA34 END 326.6
HIERARCH ESO ISS AMBI TAU0 START 0.005765
HIERARCH ESO ISS AMBI TAU0 END 0.006417
HIERARCH ESO ISS AMBI TEMP 12.31
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.58