Exposure
ID
PIONI.2025-10-29T05:18:35.679_1
Header ID
PIONI.2025-10-29T05:18:35.679
Date updated
2025-10-29 05:26:12 UTC+0000
Release date
2026-10-29 05:26:12 UTC+0000
UTC Start
2025-10-29 05:18:35.679
UTC End
2025-10-29 05:19:14.079
MJD Start
60977.2212462886
MJD End
60977.221690733044
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0065755
Ambient temperature (°C)
13.66
Seeing (arcsec)
0.385
Observation
ID
71040
Category
science
Program ID
116.292S.001
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
52720
Name
40 Tau
RA
60.934742
DEC
5.43559
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 90.5070 90.5080 113.6000 113.6000
A0-J2 126.0590 126.1570 93.9000 93.9000
A0-K0 117.8190 117.9850 73.6390 73.6440
G1-J2 51.0580 51.1390 57.1000 57.1000
G1-K0 75.7470 75.8160 23.4430 23.5430
J2-K0 43.6410 43.6200 343.0500 343.1250
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60977.2212462886
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 40 Tau
RA 60.934742
DEC 5.43559
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 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 90.507
HIERARCH ESO ISS PBL12 END 90.508
HIERARCH ESO ISS PBLA12 START 113.6
HIERARCH ESO ISS PBLA12 END 113.6
HIERARCH ESO ISS PBL13 START 126.059
HIERARCH ESO ISS PBL13 END 126.157
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 117.819
HIERARCH ESO ISS PBL14 END 117.985
HIERARCH ESO ISS PBLA14 START 73.639
HIERARCH ESO ISS PBLA14 END 73.644
HIERARCH ESO ISS PBL23 START 51.058
HIERARCH ESO ISS PBL23 END 51.139
HIERARCH ESO ISS PBLA23 START 57.1
HIERARCH ESO ISS PBLA23 END 57.1
HIERARCH ESO ISS PBL24 START 75.747
HIERARCH ESO ISS PBL24 END 75.816
HIERARCH ESO ISS PBLA24 START 23.443
HIERARCH ESO ISS PBLA24 END 23.543
HIERARCH ESO ISS PBL34 START 43.641
HIERARCH ESO ISS PBL34 END 43.62
HIERARCH ESO ISS PBLA34 START 343.05
HIERARCH ESO ISS PBLA34 END 343.125
HIERARCH ESO ISS AMBI TAU0 START 0.007087
HIERARCH ESO ISS AMBI TAU0 END 0.006064
HIERARCH ESO ISS AMBI TEMP 13.66
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.4