Exposure
ID
PIONI.2025-08-26T05:40:20.823_1
Header ID
PIONI.2025-08-26T05:40:20.823
Date updated
2025-08-26 06:20:58 UTC+0000
Release date
2025-08-26 05:40:20 UTC+0000
UTC Start
2025-08-26 05:40:20.823
UTC End
2025-08-26 05:40:59.223
MJD Start
60913.2363521168
MJD End
60913.23679656124
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0057695
Ambient temperature (°C)
13.82
Seeing (arcsec)
0.7
Observation
ID
70081
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
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51994
Name
HD220171
RA
350.433186
DEC
3.06035
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 44.6130 44.5770 148.1000 148.1000
A0-J2 129.2360 129.2350 92.6000 92.6000
A0-J6 153.2320 153.3540 28.4270 28.5000
B5-J2 110.2800 110.3450 73.1000 73.1000
B5-J6 179.5370 179.6260 15.9550 16.0420
J2-J6 151.3540 151.2600 338.2190 338.2970
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 60913.2363521168
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD220171
RA 350.433186
DEC 3.06035
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 44.613
HIERARCH ESO ISS PBL12 END 44.577
HIERARCH ESO ISS PBLA12 START 148.1
HIERARCH ESO ISS PBLA12 END 148.1
HIERARCH ESO ISS PBL13 START 129.236
HIERARCH ESO ISS PBL13 END 129.235
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 153.232
HIERARCH ESO ISS PBL14 END 153.354
HIERARCH ESO ISS PBLA14 START 28.427
HIERARCH ESO ISS PBLA14 END 28.5
HIERARCH ESO ISS PBL23 START 110.28
HIERARCH ESO ISS PBL23 END 110.345
HIERARCH ESO ISS PBLA23 START 73.1
HIERARCH ESO ISS PBLA23 END 73.1
HIERARCH ESO ISS PBL24 START 179.537
HIERARCH ESO ISS PBL24 END 179.626
HIERARCH ESO ISS PBLA24 START 15.955
HIERARCH ESO ISS PBLA24 END 16.042
HIERARCH ESO ISS PBL34 START 151.354
HIERARCH ESO ISS PBL34 END 151.26
HIERARCH ESO ISS PBLA34 START 338.219
HIERARCH ESO ISS PBLA34 END 338.297
HIERARCH ESO ISS AMBI TAU0 START 0.005879
HIERARCH ESO ISS AMBI TAU0 END 0.00566
HIERARCH ESO ISS AMBI TEMP 13.82
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.68