Exposure
ID
PIONI.2025-09-25T02:02:48.570_1
Header ID
PIONI.2025-09-25T02:02:48.570
Date updated
2025-09-25 02:10:57 UTC+0000
Release date
2025-09-25 02:02:48 UTC+0000
UTC Start
2025-09-25 02:02:48.570
UTC End
2025-09-25 02:03:26.970
MJD Start
60943.0852843747
MJD End
60943.08572881914
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.009785499999999999
Ambient temperature (°C)
17.43
Seeing (arcsec)
0.43
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 57.3410 57.1480 129.4000 129.6000
A0-J2 87.5630 87.2240 94.1000 94.1000
A0-K0 103.2540 103.0020 68.7280 68.6750
G1-J2 52.5780 52.5040 55.0000 54.9000
G1-K0 90.3110 90.2990 35.0970 35.0890
J2-K0 44.5990 44.6130 11.4750 11.5640
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 60943.0852843747
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 57.341
HIERARCH ESO ISS PBL12 END 57.148
HIERARCH ESO ISS PBLA12 START 129.4
HIERARCH ESO ISS PBLA12 END 129.6
HIERARCH ESO ISS PBL13 START 87.563
HIERARCH ESO ISS PBL13 END 87.224
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 103.254
HIERARCH ESO ISS PBL14 END 103.002
HIERARCH ESO ISS PBLA14 START 68.728
HIERARCH ESO ISS PBLA14 END 68.675
HIERARCH ESO ISS PBL23 START 52.578
HIERARCH ESO ISS PBL23 END 52.504
HIERARCH ESO ISS PBLA23 START 55.0
HIERARCH ESO ISS PBLA23 END 54.9
HIERARCH ESO ISS PBL24 START 90.311
HIERARCH ESO ISS PBL24 END 90.299
HIERARCH ESO ISS PBLA24 START 35.097
HIERARCH ESO ISS PBLA24 END 35.089
HIERARCH ESO ISS PBL34 START 44.599
HIERARCH ESO ISS PBL34 END 44.613
HIERARCH ESO ISS PBLA34 START 11.475
HIERARCH ESO ISS PBLA34 END 11.564
HIERARCH ESO ISS AMBI TAU0 START 0.009178
HIERARCH ESO ISS AMBI TAU0 END 0.010393
HIERARCH ESO ISS AMBI TEMP 17.43
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.41