Exposure
ID
PIONI.2025-10-30T07:14:23.433_1
Header ID
PIONI.2025-10-30T07:14:23.433
Date updated
2025-10-30 07:20:38 UTC+0000
Release date
2026-10-30 07:20:37 UTC+0000
UTC Start
2025-10-30 07:14:23.433
UTC End
2025-10-30 07:16:05.833
MJD Start
60978.3016601037
MJD End
60978.30284528889
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.004631
Ambient temperature (°C)
12.16
Seeing (arcsec)
0.94
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 61.4250 61.7740 71.5000 72.0000
A0-J2 104.4650 104.7590 44.1000 44.6000
A0-K0 119.1830 119.2950 25.6170 26.0780
G1-J2 57.4300 57.4440 14.5000 14.9000
G1-K0 88.2820 88.2900 355.6290 355.9070
J2-K0 38.7210 38.8100 326.8970 327.0440
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 60978.3016601037
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 61.425
HIERARCH ESO ISS PBL12 END 61.774
HIERARCH ESO ISS PBLA12 START 71.5
HIERARCH ESO ISS PBLA12 END 72.0
HIERARCH ESO ISS PBL13 START 104.465
HIERARCH ESO ISS PBL13 END 104.759
HIERARCH ESO ISS PBLA13 START 44.1
HIERARCH ESO ISS PBLA13 END 44.6
HIERARCH ESO ISS PBL14 START 119.183
HIERARCH ESO ISS PBL14 END 119.295
HIERARCH ESO ISS PBLA14 START 25.617
HIERARCH ESO ISS PBLA14 END 26.078
HIERARCH ESO ISS PBL23 START 57.43
HIERARCH ESO ISS PBL23 END 57.444
HIERARCH ESO ISS PBLA23 START 14.5
HIERARCH ESO ISS PBLA23 END 14.9
HIERARCH ESO ISS PBL24 START 88.282
HIERARCH ESO ISS PBL24 END 88.29
HIERARCH ESO ISS PBLA24 START 355.629
HIERARCH ESO ISS PBLA24 END 355.907
HIERARCH ESO ISS PBL34 START 38.721
HIERARCH ESO ISS PBL34 END 38.81
HIERARCH ESO ISS PBLA34 START 326.897
HIERARCH ESO ISS PBLA34 END 327.044
HIERARCH ESO ISS AMBI TAU0 START 0.004873
HIERARCH ESO ISS AMBI TAU0 END 0.004389
HIERARCH ESO ISS AMBI TEMP 12.16
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 1.06