Exposure
ID
PIONI.2025-12-03T03:57:34.370_1
Header ID
PIONI.2025-12-03T03:57:34.370
Date updated
2025-12-03 04:06:01 UTC+0000
Release date
2026-12-03 04:06:01 UTC+0000
UTC Start
2025-12-03 03:57:34.371
UTC End
2025-12-03 03:57:59.971
MJD Start
61012.1649811445
MJD End
61012.1652774408
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.004549
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.795
Observation
ID
71956
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
53421
Name
HD_34816
RA
79.89269
DEC
-13.17682
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 88.5540 88.5980 111.7000 111.7000
A0-J2 122.9820 123.0830 88.4000 88.5000
A0-K0 119.5610 119.6670 65.5320 65.5900
G1-J2 54.3080 54.3480 48.4000 48.5000
G1-K0 86.3780 86.3990 17.8810 17.9580
J2-K0 48.2850 48.2810 343.0050 343.0560
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 61012.1649811445
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD_34816
RA 79.89269
DEC -13.17682
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 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 88.554
HIERARCH ESO ISS PBL12 END 88.598
HIERARCH ESO ISS PBLA12 START 111.7
HIERARCH ESO ISS PBLA12 END 111.7
HIERARCH ESO ISS PBL13 START 122.982
HIERARCH ESO ISS PBL13 END 123.083
HIERARCH ESO ISS PBLA13 START 88.4
HIERARCH ESO ISS PBLA13 END 88.5
HIERARCH ESO ISS PBL14 START 119.561
HIERARCH ESO ISS PBL14 END 119.667
HIERARCH ESO ISS PBLA14 START 65.532
HIERARCH ESO ISS PBLA14 END 65.59
HIERARCH ESO ISS PBL23 START 54.308
HIERARCH ESO ISS PBL23 END 54.348
HIERARCH ESO ISS PBLA23 START 48.4
HIERARCH ESO ISS PBLA23 END 48.5
HIERARCH ESO ISS PBL24 START 86.378
HIERARCH ESO ISS PBL24 END 86.399
HIERARCH ESO ISS PBLA24 START 17.881
HIERARCH ESO ISS PBLA24 END 17.958
HIERARCH ESO ISS PBL34 START 48.285
HIERARCH ESO ISS PBL34 END 48.281
HIERARCH ESO ISS PBLA34 START 343.005
HIERARCH ESO ISS PBLA34 END 343.056
HIERARCH ESO ISS AMBI TAU0 START 0.00457
HIERARCH ESO ISS AMBI TAU0 END 0.004528
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.79