Exposure
ID
PIONI.2025-10-31T05:33:04.747_1
Header ID
PIONI.2025-10-31T05:33:04.747
Date updated
2025-10-31 05:41:30 UTC+0000
Release date
2025-10-31 05:33:04 UTC+0000
UTC Start
2025-10-31 05:33:04.747
UTC End
2025-10-31 05:33:43.147
MJD Start
60979.2313049389
MJD End
60979.23174938334
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0027359999999999997
Ambient temperature (°C)
13.05
Seeing (arcsec)
0.56
Observation
ID
71074
Category
calibrator
Program ID
116.290A.001
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
52754
Name
HD 27040
RA
63.944038
DEC
-18.64032
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 89.7600 89.7960 112.4000 112.4000
A0-J2 126.9970 127.0770 89.1000 89.2000
A0-K0 125.0810 125.1650 66.9290 67.0140
G1-J2 56.9070 56.9390 50.6000 50.7000
G1-K0 89.1510 89.1690 21.0850 21.1860
J2-K0 48.5480 48.5450 345.8050 345.8870
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.290A.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60979.2313049389
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 27040
RA 63.944038
DEC -18.64032
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 89.76
HIERARCH ESO ISS PBL12 END 89.796
HIERARCH ESO ISS PBLA12 START 112.4
HIERARCH ESO ISS PBLA12 END 112.4
HIERARCH ESO ISS PBL13 START 126.997
HIERARCH ESO ISS PBL13 END 127.077
HIERARCH ESO ISS PBLA13 START 89.1
HIERARCH ESO ISS PBLA13 END 89.2
HIERARCH ESO ISS PBL14 START 125.081
HIERARCH ESO ISS PBL14 END 125.165
HIERARCH ESO ISS PBLA14 START 66.929
HIERARCH ESO ISS PBLA14 END 67.014
HIERARCH ESO ISS PBL23 START 56.907
HIERARCH ESO ISS PBL23 END 56.939
HIERARCH ESO ISS PBLA23 START 50.6
HIERARCH ESO ISS PBLA23 END 50.7
HIERARCH ESO ISS PBL24 START 89.151
HIERARCH ESO ISS PBL24 END 89.169
HIERARCH ESO ISS PBLA24 START 21.085
HIERARCH ESO ISS PBLA24 END 21.186
HIERARCH ESO ISS PBL34 START 48.548
HIERARCH ESO ISS PBL34 END 48.545
HIERARCH ESO ISS PBLA34 START 345.805
HIERARCH ESO ISS PBLA34 END 345.887
HIERARCH ESO ISS AMBI TAU0 START 0.002558
HIERARCH ESO ISS AMBI TAU0 END 0.002914
HIERARCH ESO ISS AMBI TEMP 13.05
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.53