Exposure
ID
PIONI.2025-09-25T02:03:38.970_1
Header ID
PIONI.2025-09-25T02:03:38.970
Date updated
2025-09-25 02:10:57 UTC+0000
Release date
2025-09-25 02:03:38 UTC+0000
UTC Start
2025-09-25 02:03:38.970
UTC End
2025-09-25 02:04:17.370
MJD Start
60943.0858677053
MJD End
60943.08631214974
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.010393
Ambient temperature (°C)
17.41
Seeing (arcsec)
0.41
Observation
ID
70505
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
52282
Name
HD170817
RA
277.856057
DEC
-0.28448
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 57.1400 56.9510 129.6000 129.8000
A0-J2 87.2100 86.8760 94.1000 94.1000
A0-K0 102.9920 102.7440 68.6730 68.6200
G1-J2 52.5010 52.4290 54.9000 54.9000
G1-K0 90.2990 90.2870 35.0880 35.0790
J2-K0 44.6130 44.6270 11.5680 11.6540
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 60943.0858677053
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170817
RA 277.856057
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 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 57.14
HIERARCH ESO ISS PBL12 END 56.951
HIERARCH ESO ISS PBLA12 START 129.6
HIERARCH ESO ISS PBLA12 END 129.8
HIERARCH ESO ISS PBL13 START 87.21
HIERARCH ESO ISS PBL13 END 86.876
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 102.992
HIERARCH ESO ISS PBL14 END 102.744
HIERARCH ESO ISS PBLA14 START 68.673
HIERARCH ESO ISS PBLA14 END 68.62
HIERARCH ESO ISS PBL23 START 52.501
HIERARCH ESO ISS PBL23 END 52.429
HIERARCH ESO ISS PBLA23 START 54.9
HIERARCH ESO ISS PBLA23 END 54.9
HIERARCH ESO ISS PBL24 START 90.299
HIERARCH ESO ISS PBL24 END 90.287
HIERARCH ESO ISS PBLA24 START 35.088
HIERARCH ESO ISS PBLA24 END 35.079
HIERARCH ESO ISS PBL34 START 44.613
HIERARCH ESO ISS PBL34 END 44.627
HIERARCH ESO ISS PBLA34 START 11.568
HIERARCH ESO ISS PBLA34 END 11.654
HIERARCH ESO ISS AMBI TAU0 START 0.010393
HIERARCH ESO ISS AMBI TAU0 END 0.010393
HIERARCH ESO ISS AMBI TEMP 17.41
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.41