Exposure
ID
PIONI.2025-10-15T02:57:43.911_1
Header ID
PIONI.2025-10-15T02:57:43.911
Date updated
2025-10-15 03:05:50 UTC+0000
Release date
2026-10-15 03:05:50 UTC+0000
UTC Start
2025-10-15 02:57:43.912
UTC End
2025-10-15 02:58:22.312
MJD Start
60963.1234249021
MJD End
60963.12386934654
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.005626
Ambient temperature (°C)
12.45
Seeing (arcsec)
0.6
Observation
ID
70940
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
52645
Name
29Ari
RA
38.224893
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 47.8830 47.8650 142.4000 142.4000
A0-J2 103.2730 103.5310 105.2000 105.1000
A0-J6 109.5950 109.6580 7.9260 8.1070
B5-J2 71.3220 71.6150 81.2000 81.2000
B5-J6 147.1700 147.1250 354.5070 354.6410
J2-J6 159.7640 159.6690 328.0460 328.0500
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 60963.1234249021
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 29Ari
RA 38.224893
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 47.883
HIERARCH ESO ISS PBL12 END 47.865
HIERARCH ESO ISS PBLA12 START 142.4
HIERARCH ESO ISS PBLA12 END 142.4
HIERARCH ESO ISS PBL13 START 103.273
HIERARCH ESO ISS PBL13 END 103.531
HIERARCH ESO ISS PBLA13 START 105.2
HIERARCH ESO ISS PBLA13 END 105.1
HIERARCH ESO ISS PBL14 START 109.595
HIERARCH ESO ISS PBL14 END 109.658
HIERARCH ESO ISS PBLA14 START 7.926
HIERARCH ESO ISS PBLA14 END 8.107
HIERARCH ESO ISS PBL23 START 71.322
HIERARCH ESO ISS PBL23 END 71.615
HIERARCH ESO ISS PBLA23 START 81.2
HIERARCH ESO ISS PBLA23 END 81.2
HIERARCH ESO ISS PBL24 START 147.17
HIERARCH ESO ISS PBL24 END 147.125
HIERARCH ESO ISS PBLA24 START 354.507
HIERARCH ESO ISS PBLA24 END 354.641
HIERARCH ESO ISS PBL34 START 159.764
HIERARCH ESO ISS PBL34 END 159.669
HIERARCH ESO ISS PBLA34 START 328.046
HIERARCH ESO ISS PBLA34 END 328.05
HIERARCH ESO ISS AMBI TAU0 START 0.005626
HIERARCH ESO ISS AMBI TAU0 END 0.005626
HIERARCH ESO ISS AMBI TEMP 12.45
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.6