Exposure
ID
MATIS.2025-08-11T07:44:01.300_1
Header ID
MATIS.2025-08-11T07:44:01.300
Date updated
2025-08-11 07:50:42 UTC+0000
Release date
2026-08-11 07:50:42 UTC+0000
UTC Start
2025-08-11 07:44:01.300
UTC End
2025-08-11 07:45:07.744
MJD Start
60898.32223727
MJD End
60898.323006297775
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.003779
Ambient temperature (°C)
14.8
Seeing (arcsec)
0.45
Observation
ID
69905
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
51881
Name
HD 218396
RA
346.871649
DEC
21.13369
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 49.0470 49.1340 38.1000 38.1000
U1-U3 92.3900 92.5420 43.4000 43.3000
U1-U4 129.6990 129.7500 63.3240 63.2230
U2-U3 43.7850 43.8460 49.3000 49.2000
U2-U4 87.8660 87.7830 77.1020 76.9770
U3-U4 53.2190 53.0560 99.6790 99.5970
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 60898.32223727
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871649
DEC 21.13369
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 49.047
HIERARCH ESO ISS PBL12 END 49.134
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 92.39
HIERARCH ESO ISS PBL13 END 92.542
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 129.699
HIERARCH ESO ISS PBL14 END 129.75
HIERARCH ESO ISS PBLA14 START 63.324
HIERARCH ESO ISS PBLA14 END 63.223
HIERARCH ESO ISS PBL23 START 43.785
HIERARCH ESO ISS PBL23 END 43.846
HIERARCH ESO ISS PBLA23 START 49.3
HIERARCH ESO ISS PBLA23 END 49.2
HIERARCH ESO ISS PBL24 START 87.866
HIERARCH ESO ISS PBL24 END 87.783
HIERARCH ESO ISS PBLA24 START 77.102
HIERARCH ESO ISS PBLA24 END 76.977
HIERARCH ESO ISS PBL34 START 53.219
HIERARCH ESO ISS PBL34 END 53.056
HIERARCH ESO ISS PBLA34 START 99.679
HIERARCH ESO ISS PBLA34 END 99.597
HIERARCH ESO ISS AMBI TAU0 START 0.004983
HIERARCH ESO ISS AMBI TAU0 END 0.002575
HIERARCH ESO ISS AMBI TEMP 14.8
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.53