Exposure
ID
PIONI.2025-09-23T02:00:31.913_1
Header ID
PIONI.2025-09-23T02:00:31.913
Date updated
2025-09-23 02:05:41 UTC+0000
Release date
2025-09-23 02:00:31 UTC+0000
UTC Start
2025-09-23 02:00:31.913
UTC End
2025-09-23 02:01:10.313
MJD Start
60941.0837026956
MJD End
60941.08414714004
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005088
Ambient temperature (°C)
14.46
Seeing (arcsec)
0.59
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 59.8030 59.6110 127.7000 127.9000
A0-J2 91.6150 91.2900 94.1000 94.1000
A0-K0 106.1650 105.9250 69.4410 69.3960
G1-J2 53.4010 53.3320 55.7000 55.6000
G1-K0 90.4150 90.4070 35.1890 35.1860
J2-K0 44.4910 44.5040 10.3740 10.4660
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 60941.0837026956
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 59.803
HIERARCH ESO ISS PBL12 END 59.611
HIERARCH ESO ISS PBLA12 START 127.7
HIERARCH ESO ISS PBLA12 END 127.9
HIERARCH ESO ISS PBL13 START 91.615
HIERARCH ESO ISS PBL13 END 91.29
HIERARCH ESO ISS PBLA13 START 94.1
HIERARCH ESO ISS PBLA13 END 94.1
HIERARCH ESO ISS PBL14 START 106.165
HIERARCH ESO ISS PBL14 END 105.925
HIERARCH ESO ISS PBLA14 START 69.441
HIERARCH ESO ISS PBLA14 END 69.396
HIERARCH ESO ISS PBL23 START 53.401
HIERARCH ESO ISS PBL23 END 53.332
HIERARCH ESO ISS PBLA23 START 55.7
HIERARCH ESO ISS PBLA23 END 55.6
HIERARCH ESO ISS PBL24 START 90.415
HIERARCH ESO ISS PBL24 END 90.407
HIERARCH ESO ISS PBLA24 START 35.189
HIERARCH ESO ISS PBLA24 END 35.186
HIERARCH ESO ISS PBL34 START 44.491
HIERARCH ESO ISS PBL34 END 44.504
HIERARCH ESO ISS PBLA34 START 10.374
HIERARCH ESO ISS PBLA34 END 10.466
HIERARCH ESO ISS AMBI TAU0 START 0.005088
HIERARCH ESO ISS AMBI TAU0 END 0.005088
HIERARCH ESO ISS AMBI TEMP 14.46
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.59