Exposure
ID
PIONI.2025-09-26T01:15:19.168_1
Header ID
PIONI.2025-09-26T01:15:19.168
Date updated
2025-09-26 01:21:13 UTC+0000
Release date
2025-09-26 01:15:19 UTC+0000
UTC Start
2025-09-26 01:15:19.168
UTC End
2025-09-26 01:15:57.568
MJD Start
60944.0523051852
MJD End
60944.05274962964
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005478
Ambient temperature (°C)
13.21
Seeing (arcsec)
0.56
Observation
ID
70478
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
JONAK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
52261
Name
HD170785
RA
277.803512
DEC
-0.44419
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 67.4750 67.2970 122.8000 122.9000
A0-J2 103.8870 103.6180 93.5000 93.5000
A0-K0 114.9630 114.7760 71.0160 70.9820
G1-J2 55.8280 55.7780 57.3000 57.2000
G1-K0 90.3920 90.4000 35.1070 35.1130
J2-K0 44.0570 44.0650 6.5340 6.6280
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 60944.0523051852
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803512
DEC -0.44419
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 67.475
HIERARCH ESO ISS PBL12 END 67.297
HIERARCH ESO ISS PBLA12 START 122.8
HIERARCH ESO ISS PBLA12 END 122.9
HIERARCH ESO ISS PBL13 START 103.887
HIERARCH ESO ISS PBL13 END 103.618
HIERARCH ESO ISS PBLA13 START 93.5
HIERARCH ESO ISS PBLA13 END 93.5
HIERARCH ESO ISS PBL14 START 114.963
HIERARCH ESO ISS PBL14 END 114.776
HIERARCH ESO ISS PBLA14 START 71.016
HIERARCH ESO ISS PBLA14 END 70.982
HIERARCH ESO ISS PBL23 START 55.828
HIERARCH ESO ISS PBL23 END 55.778
HIERARCH ESO ISS PBLA23 START 57.3
HIERARCH ESO ISS PBLA23 END 57.2
HIERARCH ESO ISS PBL24 START 90.392
HIERARCH ESO ISS PBL24 END 90.4
HIERARCH ESO ISS PBLA24 START 35.107
HIERARCH ESO ISS PBLA24 END 35.113
HIERARCH ESO ISS PBL34 START 44.057
HIERARCH ESO ISS PBL34 END 44.065
HIERARCH ESO ISS PBLA34 START 6.534
HIERARCH ESO ISS PBLA34 END 6.628
HIERARCH ESO ISS AMBI TAU0 START 0.005478
HIERARCH ESO ISS AMBI TAU0 END 0.005478
HIERARCH ESO ISS AMBI TEMP 13.21
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.56