Exposure
ID
MATIS.2025-07-10T09:59:23.560_1
Header ID
MATIS.2025-07-10T09:59:23.560
Date updated
2025-07-10 10:06:11 UTC+0000
Release date
2026-07-10 10:06:11 UTC+0000
UTC Start
2025-07-10 09:59:23.560
UTC End
2025-07-10 10:00:30.004
MJD Start
60866.41624491
MJD End
60866.417013937775
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0071655
Ambient temperature (°C)
12.5
Seeing (arcsec)
0.425
Observation
ID
68591
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
51009
Name
HD 218396
RA
346.870979
DEC
21.13428
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 49.7130 49.7980 38.2000 38.2000
U1-U3 93.5420 93.6890 43.2000 43.2000
U1-U4 130.0210 130.0520 62.5260 62.4180
U2-U3 44.2400 44.2970 48.9000 48.9000
U2-U4 87.1710 87.0690 76.1240 75.9920
U3-U4 51.9200 51.7420 99.0430 98.9590
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 60866.41624491
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.870979
DEC 21.13428
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 49.713
HIERARCH ESO ISS PBL12 END 49.798
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 93.542
HIERARCH ESO ISS PBL13 END 93.689
HIERARCH ESO ISS PBLA13 START 43.2
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 130.021
HIERARCH ESO ISS PBL14 END 130.052
HIERARCH ESO ISS PBLA14 START 62.526
HIERARCH ESO ISS PBLA14 END 62.418
HIERARCH ESO ISS PBL23 START 44.24
HIERARCH ESO ISS PBL23 END 44.297
HIERARCH ESO ISS PBLA23 START 48.9
HIERARCH ESO ISS PBLA23 END 48.9
HIERARCH ESO ISS PBL24 START 87.171
HIERARCH ESO ISS PBL24 END 87.069
HIERARCH ESO ISS PBLA24 START 76.124
HIERARCH ESO ISS PBLA24 END 75.992
HIERARCH ESO ISS PBL34 START 51.92
HIERARCH ESO ISS PBL34 END 51.742
HIERARCH ESO ISS PBLA34 START 99.043
HIERARCH ESO ISS PBLA34 END 98.959
HIERARCH ESO ISS AMBI TAU0 START 0.006954
HIERARCH ESO ISS AMBI TAU0 END 0.007377
HIERARCH ESO ISS AMBI TEMP 12.5
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.44