Exposure
ID
PIONI.2025-09-25T01:42:00.504_1
Header ID
PIONI.2025-09-25T01:42:00.504
Date updated
2025-09-25 01:50:52 UTC+0000
Release date
2025-09-25 01:42:00 UTC+0000
UTC Start
2025-09-25 01:42:00.504
UTC End
2025-09-25 01:42:38.904
MJD Start
60943.0708391676
MJD End
60943.071283612044
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0114145
Ambient temperature (°C)
17.39
Seeing (arcsec)
0.38
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 62.2960 62.1060 126.0000 126.1000
A0-J2 95.7540 95.4440 93.9000 93.9000
A0-K0 109.1890 108.9640 70.0140 69.9740
G1-J2 54.2580 54.1950 56.3000 56.2000
G1-K0 90.4770 90.4750 35.2250 35.2250
J2-K0 44.3340 44.3450 9.1760 9.2700
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 60943.0708391676
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 62.296
HIERARCH ESO ISS PBL12 END 62.106
HIERARCH ESO ISS PBLA12 START 126.0
HIERARCH ESO ISS PBLA12 END 126.1
HIERARCH ESO ISS PBL13 START 95.754
HIERARCH ESO ISS PBL13 END 95.444
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 109.189
HIERARCH ESO ISS PBL14 END 108.964
HIERARCH ESO ISS PBLA14 START 70.014
HIERARCH ESO ISS PBLA14 END 69.974
HIERARCH ESO ISS PBL23 START 54.258
HIERARCH ESO ISS PBL23 END 54.195
HIERARCH ESO ISS PBLA23 START 56.3
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 90.477
HIERARCH ESO ISS PBL24 END 90.475
HIERARCH ESO ISS PBLA24 START 35.225
HIERARCH ESO ISS PBLA24 END 35.225
HIERARCH ESO ISS PBL34 START 44.334
HIERARCH ESO ISS PBL34 END 44.345
HIERARCH ESO ISS PBLA34 START 9.176
HIERARCH ESO ISS PBLA34 END 9.27
HIERARCH ESO ISS AMBI TAU0 START 0.010908
HIERARCH ESO ISS AMBI TAU0 END 0.011921
HIERARCH ESO ISS AMBI TEMP 17.39
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.37