Exposure
ID
PIONI.2025-06-02T04:06:02.526_1
Header ID
PIONI.2025-06-02T04:06:02.526
Date updated
2025-06-02 04:17:33 UTC+0000
Release date
2025-06-02 04:06:02 UTC+0000
UTC Start
2025-06-02 04:06:02.526
UTC End
2025-06-02 04:06:40.926
MJD Start
60828.1708625685
MJD End
60828.17130701294
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0041515
Ambient temperature (°C)
11.0
Seeing (arcsec)
0.96
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 48.6550 48.6530 143.1000 143.1000
A0-J2 105.8840 106.1480 92.9000 92.9000
A0-J6 140.8890 140.9440 9.2210 9.3560
B5-J2 83.5100 83.7530 66.4000 66.4000
B5-J6 178.0840 178.0720 357.8580 357.9670
J2-J6 166.7170 166.6800 330.0800 330.1020
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 60828.1708625685
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 48.655
HIERARCH ESO ISS PBL12 END 48.653
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.1
HIERARCH ESO ISS PBL13 START 105.884
HIERARCH ESO ISS PBL13 END 106.148
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 140.889
HIERARCH ESO ISS PBL14 END 140.944
HIERARCH ESO ISS PBLA14 START 9.221
HIERARCH ESO ISS PBLA14 END 9.356
HIERARCH ESO ISS PBL23 START 83.51
HIERARCH ESO ISS PBL23 END 83.753
HIERARCH ESO ISS PBLA23 START 66.4
HIERARCH ESO ISS PBLA23 END 66.4
HIERARCH ESO ISS PBL24 START 178.084
HIERARCH ESO ISS PBL24 END 178.072
HIERARCH ESO ISS PBLA24 START 357.858
HIERARCH ESO ISS PBLA24 END 357.967
HIERARCH ESO ISS PBL34 START 166.717
HIERARCH ESO ISS PBL34 END 166.68
HIERARCH ESO ISS PBLA34 START 330.08
HIERARCH ESO ISS PBLA34 END 330.102
HIERARCH ESO ISS AMBI TAU0 START 0.004004
HIERARCH ESO ISS AMBI TAU0 END 0.004299
HIERARCH ESO ISS AMBI TEMP 11.0
HIERARCH ESO ISS AMBI FWHM START 0.96
HIERARCH ESO ISS AMBI FWHM END 0.96