Exposure
ID
PIONI.2025-10-31T05:35:35.850_1
Header ID
PIONI.2025-10-31T05:35:35.850
Date updated
2025-10-31 05:41:30 UTC+0000
Release date
2025-10-31 05:35:35 UTC+0000
UTC Start
2025-10-31 05:35:35.850
UTC End
2025-10-31 05:36:14.250
MJD Start
60979.2330538216
MJD End
60979.23349826604
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.0029055
Ambient temperature (°C)
13.08
Seeing (arcsec)
0.515
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 89.8680 89.9010 112.6000 112.6000
A0-J2 127.2400 127.3160 89.3000 89.4000
A0-K0 125.3360 125.4160 67.1830 67.2600
G1-J2 57.0050 57.0360 50.9000 51.0000
G1-K0 89.2080 89.2270 21.3840 21.4770
J2-K0 48.5400 48.5370 346.0460 346.1220
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 60979.2330538216
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 89.868
HIERARCH ESO ISS PBL12 END 89.901
HIERARCH ESO ISS PBLA12 START 112.6
HIERARCH ESO ISS PBLA12 END 112.6
HIERARCH ESO ISS PBL13 START 127.24
HIERARCH ESO ISS PBL13 END 127.316
HIERARCH ESO ISS PBLA13 START 89.3
HIERARCH ESO ISS PBLA13 END 89.4
HIERARCH ESO ISS PBL14 START 125.336
HIERARCH ESO ISS PBL14 END 125.416
HIERARCH ESO ISS PBLA14 START 67.183
HIERARCH ESO ISS PBLA14 END 67.26
HIERARCH ESO ISS PBL23 START 57.005
HIERARCH ESO ISS PBL23 END 57.036
HIERARCH ESO ISS PBLA23 START 50.9
HIERARCH ESO ISS PBLA23 END 51.0
HIERARCH ESO ISS PBL24 START 89.208
HIERARCH ESO ISS PBL24 END 89.227
HIERARCH ESO ISS PBLA24 START 21.384
HIERARCH ESO ISS PBLA24 END 21.477
HIERARCH ESO ISS PBL34 START 48.54
HIERARCH ESO ISS PBL34 END 48.537
HIERARCH ESO ISS PBLA34 START 346.046
HIERARCH ESO ISS PBLA34 END 346.122
HIERARCH ESO ISS AMBI TAU0 START 0.002914
HIERARCH ESO ISS AMBI TAU0 END 0.002897
HIERARCH ESO ISS AMBI TEMP 13.08
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.5