Exposure
ID
PIONI.2025-06-02T04:07:42.722_1
Header ID
PIONI.2025-06-02T04:07:42.722
Date updated
2025-06-02 04:17:33 UTC+0000
Release date
2025-06-02 04:07:42 UTC+0000
UTC Start
2025-06-02 04:07:42.722
UTC End
2025-06-02 04:08:21.122
MJD Start
60828.1720222482
MJD End
60828.172466692646
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.004109
Ambient temperature (°C)
11.1
Seeing (arcsec)
0.9
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 48.6520 48.6500 143.1000 143.1000
A0-J2 106.4260 106.6820 92.9000 92.9000
A0-J6 141.0020 141.0570 9.5010 9.6340
B5-J2 84.0110 84.2490 66.5000 66.6000
B5-J6 178.0590 178.0490 358.0840 358.1920
J2-J6 166.6400 166.6030 330.1260 330.1490
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 60828.1720222482
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 48.652
HIERARCH ESO ISS PBL12 END 48.65
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 106.426
HIERARCH ESO ISS PBL13 END 106.682
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 141.002
HIERARCH ESO ISS PBL14 END 141.057
HIERARCH ESO ISS PBLA14 START 9.501
HIERARCH ESO ISS PBLA14 END 9.634
HIERARCH ESO ISS PBL23 START 84.011
HIERARCH ESO ISS PBL23 END 84.249
HIERARCH ESO ISS PBLA23 START 66.5
HIERARCH ESO ISS PBLA23 END 66.6
HIERARCH ESO ISS PBL24 START 178.059
HIERARCH ESO ISS PBL24 END 178.049
HIERARCH ESO ISS PBLA24 START 358.084
HIERARCH ESO ISS PBLA24 END 358.192
HIERARCH ESO ISS PBL34 START 166.64
HIERARCH ESO ISS PBL34 END 166.603
HIERARCH ESO ISS PBLA34 START 330.126
HIERARCH ESO ISS PBLA34 END 330.149
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 0.9