Exposure
ID
MATIS.2025-08-07T08:54:04.221_1
Header ID
MATIS.2025-08-07T08:54:04.221
Date updated
2025-08-07 09:00:34 UTC+0000
Release date
2026-08-07 09:00:34 UTC+0000
UTC Start
2025-08-07 08:54:04.221
UTC End
2025-08-07 08:55:10.665
MJD Start
60894.37088219
MJD End
60894.37165121778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.006720500000000001
Ambient temperature (°C)
13.3
Seeing (arcsec)
0.62
Observation
ID
69507
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
51627
Name
HD 218396
RA
346.8717
DEC
21.13408
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 52.4320 52.4990 38.0000 38.0000
U1-U3 97.9790 98.0820 42.0000 42.0000
U1-U4 129.4940 129.4330 58.3150 58.1840
U2-U3 45.8280 45.8600 46.7000 46.6000
U2-U4 82.3620 82.1910 71.0890 70.9330
U3-U4 44.8260 44.6020 96.0790 95.9940
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 60894.37088219
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.8717
DEC 21.13408
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 52.432
HIERARCH ESO ISS PBL12 END 52.499
HIERARCH ESO ISS PBLA12 START 38.0
HIERARCH ESO ISS PBLA12 END 38.0
HIERARCH ESO ISS PBL13 START 97.979
HIERARCH ESO ISS PBL13 END 98.082
HIERARCH ESO ISS PBLA13 START 42.0
HIERARCH ESO ISS PBLA13 END 42.0
HIERARCH ESO ISS PBL14 START 129.494
HIERARCH ESO ISS PBL14 END 129.433
HIERARCH ESO ISS PBLA14 START 58.315
HIERARCH ESO ISS PBLA14 END 58.184
HIERARCH ESO ISS PBL23 START 45.828
HIERARCH ESO ISS PBL23 END 45.86
HIERARCH ESO ISS PBLA23 START 46.7
HIERARCH ESO ISS PBLA23 END 46.6
HIERARCH ESO ISS PBL24 START 82.362
HIERARCH ESO ISS PBL24 END 82.191
HIERARCH ESO ISS PBLA24 START 71.089
HIERARCH ESO ISS PBLA24 END 70.933
HIERARCH ESO ISS PBL34 START 44.826
HIERARCH ESO ISS PBL34 END 44.602
HIERARCH ESO ISS PBLA34 START 96.079
HIERARCH ESO ISS PBLA34 END 95.994
HIERARCH ESO ISS AMBI TAU0 START 0.006792
HIERARCH ESO ISS AMBI TAU0 END 0.006649
HIERARCH ESO ISS AMBI TEMP 13.3
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.6