Exposure
ID
PIONI.2025-11-02T07:21:24.292_1
Header ID
PIONI.2025-11-02T07:21:24.292
Date updated
2025-11-02 07:31:05 UTC+0000
Release date
2026-11-02 07:31:04 UTC+0000
UTC Start
2025-11-02 07:21:24.292
UTC End
2025-11-02 07:23:06.692
MJD Start
60981.3065311587
MJD End
60981.30771634389
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.005614
Ambient temperature (°C)
10.8
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 64.8670 65.2060 75.9000 76.4000
A0-J2 107.4380 107.7390 49.1000 49.6000
A0-K0 120.3500 120.4710 30.1580 30.6040
G1-J2 57.5740 57.5900 18.5000 18.9000
G1-K0 88.3390 88.3420 358.4080 358.6850
J2-K0 39.5760 39.6580 328.4080 328.5620
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 60981.3065311587
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 64.867
HIERARCH ESO ISS PBL12 END 65.206
HIERARCH ESO ISS PBLA12 START 75.9
HIERARCH ESO ISS PBLA12 END 76.4
HIERARCH ESO ISS PBL13 START 107.438
HIERARCH ESO ISS PBL13 END 107.739
HIERARCH ESO ISS PBLA13 START 49.1
HIERARCH ESO ISS PBLA13 END 49.6
HIERARCH ESO ISS PBL14 START 120.35
HIERARCH ESO ISS PBL14 END 120.471
HIERARCH ESO ISS PBLA14 START 30.158
HIERARCH ESO ISS PBLA14 END 30.604
HIERARCH ESO ISS PBL23 START 57.574
HIERARCH ESO ISS PBL23 END 57.59
HIERARCH ESO ISS PBLA23 START 18.5
HIERARCH ESO ISS PBLA23 END 18.9
HIERARCH ESO ISS PBL24 START 88.339
HIERARCH ESO ISS PBL24 END 88.342
HIERARCH ESO ISS PBLA24 START 358.408
HIERARCH ESO ISS PBLA24 END 358.685
HIERARCH ESO ISS PBL34 START 39.576
HIERARCH ESO ISS PBL34 END 39.658
HIERARCH ESO ISS PBLA34 START 328.408
HIERARCH ESO ISS PBLA34 END 328.562
HIERARCH ESO ISS AMBI TAU0 START 0.005997
HIERARCH ESO ISS AMBI TAU0 END 0.005231
HIERARCH ESO ISS AMBI TEMP 10.8
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.59