Exposure
ID
PIONI.2025-10-14T02:56:39.061_1
Header ID
PIONI.2025-10-14T02:56:39.061
Date updated
2025-10-14 03:01:20 UTC+0000
Release date
2026-10-14 03:01:20 UTC+0000
UTC Start
2025-10-14 02:56:39.061
UTC End
2025-10-14 02:57:17.461
MJD Start
60962.1226743194
MJD End
60962.12311876384
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.007655
Ambient temperature (°C)
11.12
Seeing (arcsec)
0.47
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 47.9910 47.9740 142.6000 142.6000
A0-J2 101.6670 101.9320 105.7000 105.6000
A0-J6 109.2450 109.2990 6.8320 7.0090
B5-J2 69.5020 69.8000 81.3000 81.3000
B5-J6 147.4720 147.4210 353.7080 353.8360
J2-J6 160.3360 160.2440 328.0500 328.0460
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 60962.1226743194
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 47.991
HIERARCH ESO ISS PBL12 END 47.974
HIERARCH ESO ISS PBLA12 START 142.6
HIERARCH ESO ISS PBLA12 END 142.6
HIERARCH ESO ISS PBL13 START 101.667
HIERARCH ESO ISS PBL13 END 101.932
HIERARCH ESO ISS PBLA13 START 105.7
HIERARCH ESO ISS PBLA13 END 105.6
HIERARCH ESO ISS PBL14 START 109.245
HIERARCH ESO ISS PBL14 END 109.299
HIERARCH ESO ISS PBLA14 START 6.832
HIERARCH ESO ISS PBLA14 END 7.009
HIERARCH ESO ISS PBL23 START 69.502
HIERARCH ESO ISS PBL23 END 69.8
HIERARCH ESO ISS PBLA23 START 81.3
HIERARCH ESO ISS PBLA23 END 81.3
HIERARCH ESO ISS PBL24 START 147.472
HIERARCH ESO ISS PBL24 END 147.421
HIERARCH ESO ISS PBLA24 START 353.708
HIERARCH ESO ISS PBLA24 END 353.836
HIERARCH ESO ISS PBL34 START 160.336
HIERARCH ESO ISS PBL34 END 160.244
HIERARCH ESO ISS PBLA34 START 328.05
HIERARCH ESO ISS PBLA34 END 328.046
HIERARCH ESO ISS AMBI TAU0 START 0.007655
HIERARCH ESO ISS AMBI TAU0 END 0.007655
HIERARCH ESO ISS AMBI TEMP 11.12
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.47