Exposure
ID
PIONI.2025-09-21T04:20:42.824_1
Header ID
PIONI.2025-09-21T04:20:42.824
Date updated
2025-09-21 04:30:47 UTC+0000
Release date
2025-09-21 04:20:42 UTC+0000
UTC Start
2025-09-21 04:20:42.824
UTC End
2025-09-21 04:21:21.224
MJD Start
60939.1810511989
MJD End
60939.181495643345
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002198
Ambient temperature (°C)
11.03
Seeing (arcsec)
0.57
Observation
ID
70466
Category
calibrator
Program ID
115.28F2.003
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
52252
Name
HD220171
RA
350.432629
DEC
3.06034
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 87.1040 87.0230 113.5000 113.5000
A0-J2 128.6150 128.5690 92.3000 92.3000
A0-K0 127.5670 127.6010 72.9960 72.9890
G1-J2 56.9910 57.0270 58.6000 58.6000
G1-K0 83.4890 83.5520 30.3010 30.3630
J2-K0 42.9000 42.8880 351.2470 351.3440
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60939.1810511989
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD220171
RA 350.432629
DEC 3.06034
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 87.104
HIERARCH ESO ISS PBL12 END 87.023
HIERARCH ESO ISS PBLA12 START 113.5
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 128.615
HIERARCH ESO ISS PBL13 END 128.569
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 127.567
HIERARCH ESO ISS PBL14 END 127.601
HIERARCH ESO ISS PBLA14 START 72.996
HIERARCH ESO ISS PBLA14 END 72.989
HIERARCH ESO ISS PBL23 START 56.991
HIERARCH ESO ISS PBL23 END 57.027
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.6
HIERARCH ESO ISS PBL24 START 83.489
HIERARCH ESO ISS PBL24 END 83.552
HIERARCH ESO ISS PBLA24 START 30.301
HIERARCH ESO ISS PBLA24 END 30.363
HIERARCH ESO ISS PBL34 START 42.9
HIERARCH ESO ISS PBL34 END 42.888
HIERARCH ESO ISS PBLA34 START 351.247
HIERARCH ESO ISS PBLA34 END 351.344
HIERARCH ESO ISS AMBI TAU0 START 0.002198
HIERARCH ESO ISS AMBI TAU0 END 0.002198
HIERARCH ESO ISS AMBI TEMP 11.03
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57