Exposure
ID
PIONI.2025-11-02T07:23:18.911_1
Header ID
PIONI.2025-11-02T07:23:18.911
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 07:23:18.912
UTC End
2025-11-02 07:25:01.312
MJD Start
60981.3078577742
MJD End
60981.30904295939
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.0054755
Ambient temperature (°C)
10.8
Seeing (arcsec)
0.565
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 65.2120 65.5460 76.4000 76.8000
A0-J2 107.7440 108.0430 49.6000 50.1000
A0-K0 120.4740 120.5950 30.6120 31.0550
G1-J2 57.5900 57.6050 18.9000 19.3000
G1-K0 88.3420 88.3440 358.6900 358.9660
J2-K0 39.6590 39.7400 328.5650 328.7200
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 60981.3078577742
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 65.212
HIERARCH ESO ISS PBL12 END 65.546
HIERARCH ESO ISS PBLA12 START 76.4
HIERARCH ESO ISS PBLA12 END 76.8
HIERARCH ESO ISS PBL13 START 107.744
HIERARCH ESO ISS PBL13 END 108.043
HIERARCH ESO ISS PBLA13 START 49.6
HIERARCH ESO ISS PBLA13 END 50.1
HIERARCH ESO ISS PBL14 START 120.474
HIERARCH ESO ISS PBL14 END 120.595
HIERARCH ESO ISS PBLA14 START 30.612
HIERARCH ESO ISS PBLA14 END 31.055
HIERARCH ESO ISS PBL23 START 57.59
HIERARCH ESO ISS PBL23 END 57.605
HIERARCH ESO ISS PBLA23 START 18.9
HIERARCH ESO ISS PBLA23 END 19.3
HIERARCH ESO ISS PBL24 START 88.342
HIERARCH ESO ISS PBL24 END 88.344
HIERARCH ESO ISS PBLA24 START 358.69
HIERARCH ESO ISS PBLA24 END 358.966
HIERARCH ESO ISS PBL34 START 39.659
HIERARCH ESO ISS PBL34 END 39.74
HIERARCH ESO ISS PBLA34 START 328.565
HIERARCH ESO ISS PBLA34 END 328.72
HIERARCH ESO ISS AMBI TAU0 START 0.005231
HIERARCH ESO ISS AMBI TAU0 END 0.00572
HIERARCH ESO ISS AMBI TEMP 10.8
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.54