Exposure
ID
PIONI.2025-10-10T00:22:47.849_1
Header ID
PIONI.2025-10-10T00:22:47.849
Date updated
2025-10-10 00:30:53 UTC+0000
Release date
2025-10-10 00:22:47 UTC+0000
UTC Start
2025-10-10 00:22:47.848
UTC End
2025-10-10 00:23:26.248
MJD Start
60958.0158315795
MJD End
60958.01627602394
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0016064999999999999
Ambient temperature (°C)
12.62
Seeing (arcsec)
1.21
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 79.2490 79.1940 155.1000 155.3000
A0-J2 96.2230 96.0300 131.4000 131.6000
A0-K0 85.6610 85.3830 101.5760 101.7270
G1-J2 39.7460 39.6210 77.9000 78.0000
G1-K0 74.4890 74.3850 42.7550 42.7810
J2-K0 47.8440 47.8380 14.1510 14.2330
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 60958.0158315795
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 79.249
HIERARCH ESO ISS PBL12 END 79.194
HIERARCH ESO ISS PBLA12 START 155.1
HIERARCH ESO ISS PBLA12 END 155.3
HIERARCH ESO ISS PBL13 START 96.223
HIERARCH ESO ISS PBL13 END 96.03
HIERARCH ESO ISS PBLA13 START 131.4
HIERARCH ESO ISS PBLA13 END 131.6
HIERARCH ESO ISS PBL14 START 85.661
HIERARCH ESO ISS PBL14 END 85.383
HIERARCH ESO ISS PBLA14 START 101.576
HIERARCH ESO ISS PBLA14 END 101.727
HIERARCH ESO ISS PBL23 START 39.746
HIERARCH ESO ISS PBL23 END 39.621
HIERARCH ESO ISS PBLA23 START 77.9
HIERARCH ESO ISS PBLA23 END 78.0
HIERARCH ESO ISS PBL24 START 74.489
HIERARCH ESO ISS PBL24 END 74.385
HIERARCH ESO ISS PBLA24 START 42.755
HIERARCH ESO ISS PBLA24 END 42.781
HIERARCH ESO ISS PBL34 START 47.844
HIERARCH ESO ISS PBL34 END 47.838
HIERARCH ESO ISS PBLA34 START 14.151
HIERARCH ESO ISS PBLA34 END 14.233
HIERARCH ESO ISS AMBI TAU0 START 0.001683
HIERARCH ESO ISS AMBI TAU0 END 0.00153
HIERARCH ESO ISS AMBI TEMP 12.62
HIERARCH ESO ISS AMBI FWHM START 1.15
HIERARCH ESO ISS AMBI FWHM END 1.27