Exposure
ID
MATIS.2025-08-10T08:07:51.238_1
Header ID
MATIS.2025-08-10T08:07:51.238
Date updated
2025-08-10 08:15:42 UTC+0000
Release date
2026-08-10 08:15:42 UTC+0000
UTC Start
2025-08-10 08:07:51.238
UTC End
2025-08-10 08:08:57.682
MJD Start
60897.33878748
MJD End
60897.33955650778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0039915
Ambient temperature (°C)
11.73
Seeing (arcsec)
0.44
Observation
ID
69793
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
51813
Name
HD 218396
RA
346.871493
DEC
21.13374
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 50.3960 50.4720 38.2000 38.2000
U1-U3 94.7020 94.8280 43.1000 43.0000
U1-U4 130.1920 130.2000 61.6280 61.5240
U2-U3 44.6840 44.7310 48.5000 48.4000
U2-U4 86.2860 86.1770 75.0360 74.9100
U3-U4 50.4330 50.2590 98.3590 98.2820
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 60897.33878748
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871493
DEC 21.13374
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 50.396
HIERARCH ESO ISS PBL12 END 50.472
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 94.702
HIERARCH ESO ISS PBL13 END 94.828
HIERARCH ESO ISS PBLA13 START 43.1
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 130.192
HIERARCH ESO ISS PBL14 END 130.2
HIERARCH ESO ISS PBLA14 START 61.628
HIERARCH ESO ISS PBLA14 END 61.524
HIERARCH ESO ISS PBL23 START 44.684
HIERARCH ESO ISS PBL23 END 44.731
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 48.4
HIERARCH ESO ISS PBL24 START 86.286
HIERARCH ESO ISS PBL24 END 86.177
HIERARCH ESO ISS PBLA24 START 75.036
HIERARCH ESO ISS PBLA24 END 74.91
HIERARCH ESO ISS PBL34 START 50.433
HIERARCH ESO ISS PBL34 END 50.259
HIERARCH ESO ISS PBLA34 START 98.359
HIERARCH ESO ISS PBLA34 END 98.282
HIERARCH ESO ISS AMBI TAU0 START 0.004446
HIERARCH ESO ISS AMBI TAU0 END 0.003537
HIERARCH ESO ISS AMBI TEMP 11.73
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.46