Exposure
ID
PIONI.2025-06-01T06:14:55.428_1
Header ID
PIONI.2025-06-01T06:14:55.428
Date updated
2025-06-01 06:27:57 UTC+0000
Release date
2025-06-01 06:14:55 UTC+0000
UTC Start
2025-06-01 06:14:55.428
UTC End
2025-06-01 06:15:33.828
MJD Start
60827.2603637539
MJD End
60827.26080819834
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.009864
Ambient temperature (°C)
13.54
Seeing (arcsec)
0.28
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 46.0840 46.0550 147.7000 147.8000
A0-J2 128.9660 128.9950 92.6000 92.6000
A0-J6 155.0450 155.1540 26.3460 26.4240
B5-J2 109.3970 109.4780 72.3000 72.3000
B5-J6 183.3140 183.3880 13.9530 14.0410
J2-J6 156.6470 156.5640 337.4670 337.5370
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 60827.2603637539
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 46.084
HIERARCH ESO ISS PBL12 END 46.055
HIERARCH ESO ISS PBLA12 START 147.7
HIERARCH ESO ISS PBLA12 END 147.8
HIERARCH ESO ISS PBL13 START 128.966
HIERARCH ESO ISS PBL13 END 128.995
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 155.045
HIERARCH ESO ISS PBL14 END 155.154
HIERARCH ESO ISS PBLA14 START 26.346
HIERARCH ESO ISS PBLA14 END 26.424
HIERARCH ESO ISS PBL23 START 109.397
HIERARCH ESO ISS PBL23 END 109.478
HIERARCH ESO ISS PBLA23 START 72.3
HIERARCH ESO ISS PBLA23 END 72.3
HIERARCH ESO ISS PBL24 START 183.314
HIERARCH ESO ISS PBL24 END 183.388
HIERARCH ESO ISS PBLA24 START 13.953
HIERARCH ESO ISS PBLA24 END 14.041
HIERARCH ESO ISS PBL34 START 156.647
HIERARCH ESO ISS PBL34 END 156.564
HIERARCH ESO ISS PBLA34 START 337.467
HIERARCH ESO ISS PBLA34 END 337.537
HIERARCH ESO ISS AMBI TAU0 START 0.009864
HIERARCH ESO ISS AMBI TAU0 END 0.009864
HIERARCH ESO ISS AMBI TEMP 13.54
HIERARCH ESO ISS AMBI FWHM START 0.28
HIERARCH ESO ISS AMBI FWHM END 0.28