Exposure
ID
PIONI.2025-10-29T07:54:08.029_1
Header ID
PIONI.2025-10-29T07:54:08.029
Date updated
2025-10-29 08:01:24 UTC+0000
Release date
2026-10-29 08:01:24 UTC+0000
UTC Start
2025-10-29 07:54:08.028
UTC End
2025-10-29 07:55:50.428
MJD Start
60977.3292595879
MJD End
60977.33044477309
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.007218499999999999
Ambient temperature (°C)
12.88
Seeing (arcsec)
0.455
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 67.8760 68.2020 79.7000 80.1000
A0-J2 110.1590 110.4590 53.4000 53.9000
A0-K0 121.4670 121.5920 34.1530 34.5880
G1-J2 57.7170 57.7330 22.0000 22.4000
G1-K0 88.3450 88.3430 0.9250 1.2030
J2-K0 40.2900 40.3660 329.8470 330.0110
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 60977.3292595879
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 67.876
HIERARCH ESO ISS PBL12 END 68.202
HIERARCH ESO ISS PBLA12 START 79.7
HIERARCH ESO ISS PBLA12 END 80.1
HIERARCH ESO ISS PBL13 START 110.159
HIERARCH ESO ISS PBL13 END 110.459
HIERARCH ESO ISS PBLA13 START 53.4
HIERARCH ESO ISS PBLA13 END 53.9
HIERARCH ESO ISS PBL14 START 121.467
HIERARCH ESO ISS PBL14 END 121.592
HIERARCH ESO ISS PBLA14 START 34.153
HIERARCH ESO ISS PBLA14 END 34.588
HIERARCH ESO ISS PBL23 START 57.717
HIERARCH ESO ISS PBL23 END 57.733
HIERARCH ESO ISS PBLA23 START 22.0
HIERARCH ESO ISS PBLA23 END 22.4
HIERARCH ESO ISS PBL24 START 88.345
HIERARCH ESO ISS PBL24 END 88.343
HIERARCH ESO ISS PBLA24 START 0.925
HIERARCH ESO ISS PBLA24 END 1.203
HIERARCH ESO ISS PBL34 START 40.29
HIERARCH ESO ISS PBL34 END 40.366
HIERARCH ESO ISS PBLA34 START 329.847
HIERARCH ESO ISS PBLA34 END 330.011
HIERARCH ESO ISS AMBI TAU0 START 0.00731
HIERARCH ESO ISS AMBI TAU0 END 0.007127
HIERARCH ESO ISS AMBI TEMP 12.88
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.45