Exposure
ID
PIONI.2025-10-09T00:45:50.885_1
Header ID
PIONI.2025-10-09T00:45:50.885
Date updated
2025-10-09 00:55:56 UTC+0000
Release date
2025-10-09 00:45:50 UTC+0000
UTC Start
2025-10-09 00:45:50.885
UTC End
2025-10-09 00:46:29.285
MJD Start
60957.0318389516
MJD End
60957.032283396045
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005076
Ambient temperature (°C)
12.81
Seeing (arcsec)
0.745
Observation
ID
70861
Category
calibrator
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
52574
Name
HD_155870
RA
258.919346
DEC
-33.26785
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 78.0500 78.0030 159.8000 160.0000
A0-J2 91.7630 91.5770 136.6000 136.8000
A0-K0 79.0040 78.7140 105.3150 105.4870
G1-J2 36.7370 36.6040 79.7000 79.8000
G1-K0 71.9550 71.8430 43.2610 43.2810
J2-K0 47.6760 47.6680 16.0330 16.1140
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60957.0318389516
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD_155870
RA 258.919346
DEC -33.26785
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 78.05
HIERARCH ESO ISS PBL12 END 78.003
HIERARCH ESO ISS PBLA12 START 159.8
HIERARCH ESO ISS PBLA12 END 160.0
HIERARCH ESO ISS PBL13 START 91.763
HIERARCH ESO ISS PBL13 END 91.577
HIERARCH ESO ISS PBLA13 START 136.6
HIERARCH ESO ISS PBLA13 END 136.8
HIERARCH ESO ISS PBL14 START 79.004
HIERARCH ESO ISS PBL14 END 78.714
HIERARCH ESO ISS PBLA14 START 105.315
HIERARCH ESO ISS PBLA14 END 105.487
HIERARCH ESO ISS PBL23 START 36.737
HIERARCH ESO ISS PBL23 END 36.604
HIERARCH ESO ISS PBLA23 START 79.7
HIERARCH ESO ISS PBLA23 END 79.8
HIERARCH ESO ISS PBL24 START 71.955
HIERARCH ESO ISS PBL24 END 71.843
HIERARCH ESO ISS PBLA24 START 43.261
HIERARCH ESO ISS PBLA24 END 43.281
HIERARCH ESO ISS PBL34 START 47.676
HIERARCH ESO ISS PBL34 END 47.668
HIERARCH ESO ISS PBLA34 START 16.033
HIERARCH ESO ISS PBLA34 END 16.114
HIERARCH ESO ISS AMBI TAU0 START 0.0055
HIERARCH ESO ISS AMBI TAU0 END 0.004652
HIERARCH ESO ISS AMBI TEMP 12.81
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.77