Exposure
ID
MATIS.2025-08-07T07:45:51.749_1
Header ID
MATIS.2025-08-07T07:45:51.749
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 07:45:51.749
UTC End
2025-08-07 07:46:58.193
MJD Start
60894.32351561
MJD End
60894.324284637776
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.006725
Ambient temperature (°C)
13.44
Seeing (arcsec)
0.8049999999999999
Observation
ID
69469
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
SI_PHOT_LM_MEDIUM
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 48.0370 48.1210 37.8000 37.8000
U1-U3 90.5980 90.7490 43.4000 43.4000
U1-U4 128.9480 129.0200 64.4190 64.3340
U2-U3 43.0540 43.1150 49.7000 49.7000
U2-U4 88.6510 88.5990 78.4710 78.3640
U3-U4 54.9560 54.8250 100.6090 100.5340
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 60894.32351561
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871676
DEC 21.13407
HIERARCH ESO DET NAME MATISSE-LM
HIERARCH ESO INS FIL NAME LM
HIERARCH ESO INS FIL ID LM
HIERARCH ESO INS DIL NAME MED
HIERARCH ESO INS DIL ID MED
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 10.0
HIERARCH ESO DET SEQ1 PERIOD 11.074
HIERARCH ESO DET NDIT 6
HIERARCH ESO ISS PBL12 START 48.037
HIERARCH ESO ISS PBL12 END 48.121
HIERARCH ESO ISS PBLA12 START 37.8
HIERARCH ESO ISS PBLA12 END 37.8
HIERARCH ESO ISS PBL13 START 90.598
HIERARCH ESO ISS PBL13 END 90.749
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 129.02
HIERARCH ESO ISS PBLA14 START 64.419
HIERARCH ESO ISS PBLA14 END 64.334
HIERARCH ESO ISS PBL23 START 43.054
HIERARCH ESO ISS PBL23 END 43.115
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 88.599
HIERARCH ESO ISS PBLA24 START 78.471
HIERARCH ESO ISS PBLA24 END 78.364
HIERARCH ESO ISS PBL34 START 54.956
HIERARCH ESO ISS PBL34 END 54.825
HIERARCH ESO ISS PBLA34 START 100.609
HIERARCH ESO ISS PBLA34 END 100.534
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