Exposure
ID
PIONI.2025-10-29T07:12:41.124_1
Header ID
PIONI.2025-10-29T07:12:41.124
Date updated
2025-10-29 07:20:42 UTC+0000
Release date
2025-10-29 07:12:41 UTC+0000
UTC Start
2025-10-29 07:12:41.124
UTC End
2025-10-29 07:14:23.524
MJD Start
60977.3004759694
MJD End
60977.30166115459
Exposure time (s)
102.4
Validation level
1
Tau 0: Coherence time (s)
0.0110835
Ambient temperature (°C)
12.57
Seeing (arcsec)
0.485
Observation
ID
71047
Category
calibrator
Program ID
116.290A.002
Program Title
CONSTRAINING ASTEROSEISMIC MODELS OF MASSIVE OB STARS USING HIGH-PRECISION INTERFEROMETRY
Program Type
Normal
PI / COI
VRANCKEN / DESHMUKH / SANA / TKACHENKO / AERTS / KLIAPETS
Target
ID
52727
Name
HD 34446
RA
79.365247
DEC
-0.34591
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 89.8910 89.8090 113.7000 113.7000
A0-J2 129.0710 129.1210 92.6000 92.6000
A0-K0 125.3860 125.5840 72.3710 72.4020
G1-J2 55.6720 55.7890 56.9000 57.0000
G1-K0 82.9310 83.0640 26.6450 26.8300
J2-K0 44.7320 44.6990 347.8060 348.0060
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.290A.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60977.3004759694
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 34446
RA 79.365247
DEC -0.34591
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 0.002
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 89.891
HIERARCH ESO ISS PBL12 END 89.809
HIERARCH ESO ISS PBLA12 START 113.7
HIERARCH ESO ISS PBLA12 END 113.7
HIERARCH ESO ISS PBL13 START 129.071
HIERARCH ESO ISS PBL13 END 129.121
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 125.386
HIERARCH ESO ISS PBL14 END 125.584
HIERARCH ESO ISS PBLA14 START 72.371
HIERARCH ESO ISS PBLA14 END 72.402
HIERARCH ESO ISS PBL23 START 55.672
HIERARCH ESO ISS PBL23 END 55.789
HIERARCH ESO ISS PBLA23 START 56.9
HIERARCH ESO ISS PBLA23 END 57.0
HIERARCH ESO ISS PBL24 START 82.931
HIERARCH ESO ISS PBL24 END 83.064
HIERARCH ESO ISS PBLA24 START 26.645
HIERARCH ESO ISS PBLA24 END 26.83
HIERARCH ESO ISS PBL34 START 44.732
HIERARCH ESO ISS PBL34 END 44.699
HIERARCH ESO ISS PBLA34 START 347.806
HIERARCH ESO ISS PBLA34 END 348.006
HIERARCH ESO ISS AMBI TAU0 START 0.011103
HIERARCH ESO ISS AMBI TAU0 END 0.011064
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.49