Exposure
ID
PIONI.2025-07-23T04:51:07.203_1
Header ID
PIONI.2025-07-23T04:51:07.203
Date updated
2025-07-23 04:55:47 UTC+0000
Release date
2025-07-23 04:51:07 UTC+0000
UTC Start
2025-07-23 04:51:07.203
UTC End
2025-07-23 04:51:45.603
MJD Start
60879.2021666984
MJD End
60879.20261114284
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0024665
Ambient temperature (°C)
13.66
Seeing (arcsec)
0.665
Observation
ID
67037
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
49845
Name
HD170817
RA
277.856058
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 75.6900 75.5340 118.7000 118.7000
A0-J2 115.6560 115.4500 93.0000 93.0000
A0-K0 122.7080 122.5840 72.1330 72.1130
G1-J2 57.6710 57.6460 58.3000 58.3000
G1-K0 89.5060 89.5320 34.2560 34.2800
J2-K0 43.7340 43.7370 1.6880 1.7860
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 60879.2021666984
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856058
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 75.69
HIERARCH ESO ISS PBL12 END 75.534
HIERARCH ESO ISS PBLA12 START 118.7
HIERARCH ESO ISS PBLA12 END 118.7
HIERARCH ESO ISS PBL13 START 115.656
HIERARCH ESO ISS PBL13 END 115.45
HIERARCH ESO ISS PBLA13 START 93.0
HIERARCH ESO ISS PBLA13 END 93.0
HIERARCH ESO ISS PBL14 START 122.708
HIERARCH ESO ISS PBL14 END 122.584
HIERARCH ESO ISS PBLA14 START 72.133
HIERARCH ESO ISS PBLA14 END 72.113
HIERARCH ESO ISS PBL23 START 57.671
HIERARCH ESO ISS PBL23 END 57.646
HIERARCH ESO ISS PBLA23 START 58.3
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 89.506
HIERARCH ESO ISS PBL24 END 89.532
HIERARCH ESO ISS PBLA24 START 34.256
HIERARCH ESO ISS PBLA24 END 34.28
HIERARCH ESO ISS PBL34 START 43.734
HIERARCH ESO ISS PBL34 END 43.737
HIERARCH ESO ISS PBLA34 START 1.688
HIERARCH ESO ISS PBLA34 END 1.786
HIERARCH ESO ISS AMBI TAU0 START 0.002199
HIERARCH ESO ISS AMBI TAU0 END 0.002734
HIERARCH ESO ISS AMBI TEMP 13.66
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.62