Exposure
ID
MATIS.2025-08-11T08:31:34.840_1
Header ID
MATIS.2025-08-11T08:31:34.840
Date updated
2025-08-11 08:40:42 UTC+0000
Release date
2026-08-11 08:40:42 UTC+0000
UTC Start
2025-08-11 08:31:34.840
UTC End
2025-08-11 08:32:41.284
MJD Start
60898.35526435
MJD End
60898.35603337778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.00473
Ambient temperature (°C)
14.99
Seeing (arcsec)
0.4
Observation
ID
69936
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
51899
Name
HD 218396
RA
346.871663
DEC
21.13371
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 52.0640 52.1340 38.1000 38.1000
U1-U3 97.4090 97.5190 42.3000 42.2000
U1-U4 129.7790 129.7310 59.0080 58.8800
U2-U3 45.6440 45.6800 47.1000 47.0000
U2-U4 83.2450 83.0840 71.9090 71.7570
U3-U4 46.0020 45.7840 96.5300 96.4460
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 60898.35526435
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871663
DEC 21.13371
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 52.064
HIERARCH ESO ISS PBL12 END 52.134
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 97.409
HIERARCH ESO ISS PBL13 END 97.519
HIERARCH ESO ISS PBLA13 START 42.3
HIERARCH ESO ISS PBLA13 END 42.2
HIERARCH ESO ISS PBL14 START 129.779
HIERARCH ESO ISS PBL14 END 129.731
HIERARCH ESO ISS PBLA14 START 59.008
HIERARCH ESO ISS PBLA14 END 58.88
HIERARCH ESO ISS PBL23 START 45.644
HIERARCH ESO ISS PBL23 END 45.68
HIERARCH ESO ISS PBLA23 START 47.1
HIERARCH ESO ISS PBLA23 END 47.0
HIERARCH ESO ISS PBL24 START 83.245
HIERARCH ESO ISS PBL24 END 83.084
HIERARCH ESO ISS PBLA24 START 71.909
HIERARCH ESO ISS PBLA24 END 71.757
HIERARCH ESO ISS PBL34 START 46.002
HIERARCH ESO ISS PBL34 END 45.784
HIERARCH ESO ISS PBLA34 START 96.53
HIERARCH ESO ISS PBLA34 END 96.446
HIERARCH ESO ISS AMBI TAU0 START 0.004375
HIERARCH ESO ISS AMBI TAU0 END 0.005085
HIERARCH ESO ISS AMBI TEMP 14.99
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.37