Exposure
ID
MATIS.2025-08-07T07:45:52.347_1
Header ID
MATIS.2025-08-07T07:45:52.347
Date updated
2025-08-07 07:50:45 UTC+0000
Release date
2026-08-07 07:50:44 UTC+0000
UTC Start
2025-08-07 07:45:52.347
UTC End
2025-08-07 07:46:54.357
MJD Start
60894.32352253
MJD End
60894.32424023833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.006725
Ambient temperature (°C)
13.44
Seeing (arcsec)
0.8049999999999999
Observation
ID
69470
Category
science
Program ID
115.28GN.001
Program Title
MID-INFRARED STUDY OF THE PLANETARY ATMOSPHERES OF THE HR 8799 SYSTEM
Program Type
Normal
PI / COI
HOULLÉ / MILLOUR / SCIGLIUTO / LOPEZ
Target
ID
51608
Name
HD 218396
RA
346.871676
DEC
21.13407
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
HIGH_SENS_N_LOW
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 48.0390 48.1160 37.8000 37.8000
U1-U3 90.6020 90.7400 43.4000 43.4000
U1-U4 128.9480 129.0160 64.4190 64.3400
U2-U3 43.0540 43.1110 49.7000 49.7000
U2-U4 88.6510 88.6020 78.4710 78.3700
U3-U4 54.9560 54.8330 100.6090 100.5390
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28GN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT
MJD-OBS 60894.32352253
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871676
DEC 21.13407
HIERARCH ESO DET NAME MATISSE-N
HIERARCH ESO INS DIN NAME LOW
HIERARCH ESO INS DIN ID LOW
HIERARCH ESO INS MODE HYBRID
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 0.0200088
HIERARCH ESO DET SEQ1 PERIOD 0.026
HIERARCH ESO DET NDIT 2385
HIERARCH ESO ISS PBL12 START 48.039
HIERARCH ESO ISS PBL12 END 48.116
HIERARCH ESO ISS PBLA12 START 37.8
HIERARCH ESO ISS PBLA12 END 37.8
HIERARCH ESO ISS PBL13 START 90.602
HIERARCH ESO ISS PBL13 END 90.74
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 128.948
HIERARCH ESO ISS PBL14 END 129.016
HIERARCH ESO ISS PBLA14 START 64.419
HIERARCH ESO ISS PBLA14 END 64.34
HIERARCH ESO ISS PBL23 START 43.054
HIERARCH ESO ISS PBL23 END 43.111
HIERARCH ESO ISS PBLA23 START 49.7
HIERARCH ESO ISS PBLA23 END 49.7
HIERARCH ESO ISS PBL24 START 88.651
HIERARCH ESO ISS PBL24 END 88.602
HIERARCH ESO ISS PBLA24 START 78.471
HIERARCH ESO ISS PBLA24 END 78.37
HIERARCH ESO ISS PBL34 START 54.956
HIERARCH ESO ISS PBL34 END 54.833
HIERARCH ESO ISS PBLA34 START 100.609
HIERARCH ESO ISS PBLA34 END 100.539
HIERARCH ESO ISS AMBI TAU0 START 0.006725
HIERARCH ESO ISS AMBI TAU0 END 0.006725
HIERARCH ESO ISS AMBI TEMP 13.44
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 0.79