Exposure
ID
PIONI.2025-10-13T02:55:12.666_1
Header ID
PIONI.2025-10-13T02:55:12.666
Date updated
2025-10-13 03:00:52 UTC+0000
Release date
2026-10-13 03:00:52 UTC+0000
UTC Start
2025-10-13 02:55:12.665
UTC End
2025-10-13 02:55:51.065
MJD Start
60961.1216743691
MJD End
60961.12211881354
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0072525
Ambient temperature (°C)
13.49
Seeing (arcsec)
0.47
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 48.0970 48.0810 142.8000 142.7000
A0-J2 99.9040 100.1740 106.4000 106.3000
A0-J6 108.9240 108.9680 5.6430 5.8230
B5-J2 67.5140 67.8190 81.4000 81.4000
B5-J6 147.8370 147.7780 352.8550 352.9830
J2-J6 160.9250 160.8370 328.0640 328.0590
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 60961.1216743691
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 48.097
HIERARCH ESO ISS PBL12 END 48.081
HIERARCH ESO ISS PBLA12 START 142.8
HIERARCH ESO ISS PBLA12 END 142.7
HIERARCH ESO ISS PBL13 START 99.904
HIERARCH ESO ISS PBL13 END 100.174
HIERARCH ESO ISS PBLA13 START 106.4
HIERARCH ESO ISS PBLA13 END 106.3
HIERARCH ESO ISS PBL14 START 108.924
HIERARCH ESO ISS PBL14 END 108.968
HIERARCH ESO ISS PBLA14 START 5.643
HIERARCH ESO ISS PBLA14 END 5.823
HIERARCH ESO ISS PBL23 START 67.514
HIERARCH ESO ISS PBL23 END 67.819
HIERARCH ESO ISS PBLA23 START 81.4
HIERARCH ESO ISS PBLA23 END 81.4
HIERARCH ESO ISS PBL24 START 147.837
HIERARCH ESO ISS PBL24 END 147.778
HIERARCH ESO ISS PBLA24 START 352.855
HIERARCH ESO ISS PBLA24 END 352.983
HIERARCH ESO ISS PBL34 START 160.925
HIERARCH ESO ISS PBL34 END 160.837
HIERARCH ESO ISS PBLA34 START 328.064
HIERARCH ESO ISS PBLA34 END 328.059
HIERARCH ESO ISS AMBI TAU0 START 0.007145
HIERARCH ESO ISS AMBI TAU0 END 0.00736
HIERARCH ESO ISS AMBI TEMP 13.49
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.47