Exposure
ID
PIONI.2025-06-02T04:08:33.196_1
Header ID
PIONI.2025-06-02T04:08:33.196
Date updated
2025-06-02 04:17:33 UTC+0000
Release date
2025-06-02 04:08:33 UTC+0000
UTC Start
2025-06-02 04:08:33.195
UTC End
2025-06-02 04:09:11.595
MJD Start
60828.1726064277
MJD End
60828.173050872145
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004109
Ambient temperature (°C)
11.1
Seeing (arcsec)
0.825
Observation
ID
67690
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
50342
Name
HD170817
RA
277.856613
DEC
-0.28448
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.6500 48.6480 143.1000 143.1000
A0-J2 106.6920 106.9520 92.9000 92.9000
A0-J6 141.0600 141.1160 9.6390 9.7770
B5-J2 84.2580 84.5000 66.6000 66.7000
B5-J6 178.0480 178.0380 358.1960 358.3080
J2-J6 166.6020 166.5630 330.1500 330.1760
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 60828.1726064277
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856613
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.65
HIERARCH ESO ISS PBL12 END 48.648
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 106.692
HIERARCH ESO ISS PBL13 END 106.952
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 141.06
HIERARCH ESO ISS PBL14 END 141.116
HIERARCH ESO ISS PBLA14 START 9.639
HIERARCH ESO ISS PBLA14 END 9.777
HIERARCH ESO ISS PBL23 START 84.258
HIERARCH ESO ISS PBL23 END 84.5
HIERARCH ESO ISS PBLA23 START 66.6
HIERARCH ESO ISS PBLA23 END 66.7
HIERARCH ESO ISS PBL24 START 178.048
HIERARCH ESO ISS PBL24 END 178.038
HIERARCH ESO ISS PBLA24 START 358.196
HIERARCH ESO ISS PBLA24 END 358.308
HIERARCH ESO ISS PBL34 START 166.602
HIERARCH ESO ISS PBL34 END 166.563
HIERARCH ESO ISS PBLA34 START 330.15
HIERARCH ESO ISS PBLA34 END 330.176
HIERARCH ESO ISS AMBI TAU0 START 0.004109
HIERARCH ESO ISS AMBI TAU0 END 0.004109
HIERARCH ESO ISS AMBI TEMP 11.1
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.75