Exposure
ID
PIONI.2025-10-13T02:56:53.728_1
Header ID
PIONI.2025-10-13T02:56:53.728
Date updated
2025-10-13 03:06:33 UTC+0000
Release date
2026-10-13 03:06:33 UTC+0000
UTC Start
2025-10-13 02:56:53.727
UTC End
2025-10-13 02:57:32.127
MJD Start
60961.1228440651
MJD End
60961.123288509545
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.008635
Ambient temperature (°C)
13.45
Seeing (arcsec)
0.41000000000000003
Observation
ID
70925
Category
science
Program ID
116.296R.001
Program Title
WEIGHING SUN-LIKE STARS : HIGH-PRECISION MASSES OF G-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONAK / MOURARD / NARDETTO
Target
ID
52632
Name
29Ari
RA
38.224894
DEC
15.03482
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 48.0640 48.0480 142.7000 142.7000
A0-J2 100.4600 100.7290 106.2000 106.1000
A0-J6 109.0170 109.0650 6.0150 6.1970
B5-J2 68.1400 68.4430 81.3000 81.3000
B5-J6 147.7170 147.6610 353.1200 353.2510
J2-J6 160.7430 160.6540 328.0560 328.0550
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.296R.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60961.1228440651
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 29Ari
RA 38.224894
DEC 15.03482
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 48.064
HIERARCH ESO ISS PBL12 END 48.048
HIERARCH ESO ISS PBLA12 START 142.7
HIERARCH ESO ISS PBLA12 END 142.7
HIERARCH ESO ISS PBL13 START 100.46
HIERARCH ESO ISS PBL13 END 100.729
HIERARCH ESO ISS PBLA13 START 106.2
HIERARCH ESO ISS PBLA13 END 106.1
HIERARCH ESO ISS PBL14 START 109.017
HIERARCH ESO ISS PBL14 END 109.065
HIERARCH ESO ISS PBLA14 START 6.015
HIERARCH ESO ISS PBLA14 END 6.197
HIERARCH ESO ISS PBL23 START 68.14
HIERARCH ESO ISS PBL23 END 68.443
HIERARCH ESO ISS PBLA23 START 81.3
HIERARCH ESO ISS PBLA23 END 81.3
HIERARCH ESO ISS PBL24 START 147.717
HIERARCH ESO ISS PBL24 END 147.661
HIERARCH ESO ISS PBLA24 START 353.12
HIERARCH ESO ISS PBLA24 END 353.251
HIERARCH ESO ISS PBL34 START 160.743
HIERARCH ESO ISS PBL34 END 160.654
HIERARCH ESO ISS PBLA34 START 328.056
HIERARCH ESO ISS PBLA34 END 328.055
HIERARCH ESO ISS AMBI TAU0 START 0.007473
HIERARCH ESO ISS AMBI TAU0 END 0.009797
HIERARCH ESO ISS AMBI TEMP 13.45
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.39