Exposure
ID
MATIS.2025-08-11T08:11:59.385_1
Header ID
MATIS.2025-08-11T08:11:59.385
Date updated
2025-08-11 08:15:31 UTC+0000
Release date
2026-08-11 08:15:31 UTC+0000
UTC Start
2025-08-11 08:11:59.385
UTC End
2025-08-11 08:13:05.829
MJD Start
60898.34165955
MJD End
60898.34242857778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0039945
Ambient temperature (°C)
14.77
Seeing (arcsec)
0.45
Observation
ID
69917
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
51888
Name
HD 218396
RA
346.871659
DEC
21.1337
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 50.9090 50.9790 38.2000 38.2000
U1-U3 95.5540 95.6700 42.9000 42.8000
U1-U4 130.2000 130.1930 60.8970 60.7920
U2-U3 44.9990 45.0410 48.1000 48.1000
U2-U4 85.4970 85.3790 74.1570 74.0310
U3-U4 49.2040 49.0270 97.8270 97.7520
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 60898.34165955
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871659
DEC 21.1337
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 50.909
HIERARCH ESO ISS PBL12 END 50.979
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 95.554
HIERARCH ESO ISS PBL13 END 95.67
HIERARCH ESO ISS PBLA13 START 42.9
HIERARCH ESO ISS PBLA13 END 42.8
HIERARCH ESO ISS PBL14 START 130.2
HIERARCH ESO ISS PBL14 END 130.193
HIERARCH ESO ISS PBLA14 START 60.897
HIERARCH ESO ISS PBLA14 END 60.792
HIERARCH ESO ISS PBL23 START 44.999
HIERARCH ESO ISS PBL23 END 45.041
HIERARCH ESO ISS PBLA23 START 48.1
HIERARCH ESO ISS PBLA23 END 48.1
HIERARCH ESO ISS PBL24 START 85.497
HIERARCH ESO ISS PBL24 END 85.379
HIERARCH ESO ISS PBLA24 START 74.157
HIERARCH ESO ISS PBLA24 END 74.031
HIERARCH ESO ISS PBL34 START 49.204
HIERARCH ESO ISS PBL34 END 49.027
HIERARCH ESO ISS PBLA34 START 97.827
HIERARCH ESO ISS PBLA34 END 97.752
HIERARCH ESO ISS AMBI TAU0 START 0.004413
HIERARCH ESO ISS AMBI TAU0 END 0.003576
HIERARCH ESO ISS AMBI TEMP 14.77
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45