Exposure
ID
PIONI.2025-10-10T00:21:57.204_1
Header ID
PIONI.2025-10-10T00:21:57.204
Date updated
2025-10-10 00:30:53 UTC+0000
Release date
2025-10-10 00:21:57 UTC+0000
UTC Start
2025-10-10 00:21:57.204
UTC End
2025-10-10 00:22:35.604
MJD Start
60958.0152454167
MJD End
60958.01568986114
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0016489999999999999
Ambient temperature (°C)
12.63
Seeing (arcsec)
1.18
Observation
ID
70884
Category
calibrator
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
52594
Name
HD 155870
RA
258.919365
DEC
-33.26787
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 79.3060 79.2510 154.9000 155.1000
A0-J2 96.4240 96.2310 131.1000 131.3000
A0-K0 85.9500 85.6730 101.4200 101.5690
G1-J2 39.8750 39.7510 77.9000 77.9000
G1-K0 74.5980 74.4940 42.7290 42.7540
J2-K0 47.8510 47.8450 14.0660 14.1470
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.292S.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60958.0152454167
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 155870
RA 258.919365
DEC -33.26787
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 79.306
HIERARCH ESO ISS PBL12 END 79.251
HIERARCH ESO ISS PBLA12 START 154.9
HIERARCH ESO ISS PBLA12 END 155.1
HIERARCH ESO ISS PBL13 START 96.424
HIERARCH ESO ISS PBL13 END 96.231
HIERARCH ESO ISS PBLA13 START 131.1
HIERARCH ESO ISS PBLA13 END 131.3
HIERARCH ESO ISS PBL14 START 85.95
HIERARCH ESO ISS PBL14 END 85.673
HIERARCH ESO ISS PBLA14 START 101.42
HIERARCH ESO ISS PBLA14 END 101.569
HIERARCH ESO ISS PBL23 START 39.875
HIERARCH ESO ISS PBL23 END 39.751
HIERARCH ESO ISS PBLA23 START 77.9
HIERARCH ESO ISS PBLA23 END 77.9
HIERARCH ESO ISS PBL24 START 74.598
HIERARCH ESO ISS PBL24 END 74.494
HIERARCH ESO ISS PBLA24 START 42.729
HIERARCH ESO ISS PBLA24 END 42.754
HIERARCH ESO ISS PBL34 START 47.851
HIERARCH ESO ISS PBL34 END 47.845
HIERARCH ESO ISS PBLA34 START 14.066
HIERARCH ESO ISS PBLA34 END 14.147
HIERARCH ESO ISS AMBI TAU0 START 0.001615
HIERARCH ESO ISS AMBI TAU0 END 0.001683
HIERARCH ESO ISS AMBI TEMP 12.63
HIERARCH ESO ISS AMBI FWHM START 1.21
HIERARCH ESO ISS AMBI FWHM END 1.15