Exposure
ID
PIONI.2025-09-25T02:04:29.430_1
Header ID
PIONI.2025-09-25T02:04:29.430
Date updated
2025-09-25 02:10:57 UTC+0000
Release date
2025-09-25 02:04:29 UTC+0000
UTC Start
2025-09-25 02:04:29.430
UTC End
2025-09-25 02:05:07.830
MJD Start
60943.0864517363
MJD End
60943.08689618074
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.009895000000000001
Ambient temperature (°C)
17.41
Seeing (arcsec)
0.425
Observation
ID
70505
Category
calibrator
Program ID
115.28F2.002
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52282
Name
HD170817
RA
277.856057
DEC
-0.28448
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 56.9430 56.7500 129.8000 129.9000
A0-J2 86.8630 86.5210 94.1000 94.1000
A0-K0 102.7330 102.4790 68.6170 68.5620
G1-J2 52.4260 52.3520 54.9000 54.8000
G1-K0 90.2870 90.2740 35.0780 35.0670
J2-K0 44.6270 44.6420 11.6580 11.7450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60943.0864517363
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856057
DEC -0.28448
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 56.943
HIERARCH ESO ISS PBL12 END 56.75
HIERARCH ESO ISS PBLA12 START 129.8
HIERARCH ESO ISS PBLA12 END 129.9
HIERARCH ESO ISS PBL13 START 86.863
HIERARCH ESO ISS PBL13 END 86.521
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 102.733
HIERARCH ESO ISS PBL14 END 102.479
HIERARCH ESO ISS PBLA14 START 68.617
HIERARCH ESO ISS PBLA14 END 68.562
HIERARCH ESO ISS PBL23 START 52.426
HIERARCH ESO ISS PBL23 END 52.352
HIERARCH ESO ISS PBLA23 START 54.9
HIERARCH ESO ISS PBLA23 END 54.8
HIERARCH ESO ISS PBL24 START 90.287
HIERARCH ESO ISS PBL24 END 90.274
HIERARCH ESO ISS PBLA24 START 35.078
HIERARCH ESO ISS PBLA24 END 35.067
HIERARCH ESO ISS PBL34 START 44.627
HIERARCH ESO ISS PBL34 END 44.642
HIERARCH ESO ISS PBLA34 START 11.658
HIERARCH ESO ISS PBLA34 END 11.745
HIERARCH ESO ISS AMBI TAU0 START 0.010393
HIERARCH ESO ISS AMBI TAU0 END 0.009397
HIERARCH ESO ISS AMBI TEMP 17.41
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.44