Exposure
ID
MATIS.2025-08-10T08:04:55.217_1
Header ID
MATIS.2025-08-10T08:04:55.217
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 08:04:55.217
UTC End
2025-08-10 08:06:01.661
MJD Start
60897.3367502
MJD End
60897.337519227774
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.003671
Ambient temperature (°C)
11.86
Seeing (arcsec)
0.45999999999999996
Observation
ID
69794
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
51814
Name
HD 218396
RA
346.871495
DEC
21.13373
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 50.2050 50.2790 38.2000 38.2000
U1-U3 94.3800 94.5050 43.1000 43.1000
U1-U4 130.1610 130.1750 61.8880 61.7880
U2-U3 44.5620 44.6100 48.6000 48.6000
U2-U4 86.5520 86.4510 75.3490 75.2280
U3-U4 50.8650 50.6990 98.5530 98.4780
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 60897.3367502
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871495
DEC 21.13373
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 50.205
HIERARCH ESO ISS PBL12 END 50.279
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 94.38
HIERARCH ESO ISS PBL13 END 94.505
HIERARCH ESO ISS PBLA13 START 43.1
HIERARCH ESO ISS PBLA13 END 43.1
HIERARCH ESO ISS PBL14 START 130.161
HIERARCH ESO ISS PBL14 END 130.175
HIERARCH ESO ISS PBLA14 START 61.888
HIERARCH ESO ISS PBLA14 END 61.788
HIERARCH ESO ISS PBL23 START 44.562
HIERARCH ESO ISS PBL23 END 44.61
HIERARCH ESO ISS PBLA23 START 48.6
HIERARCH ESO ISS PBLA23 END 48.6
HIERARCH ESO ISS PBL24 START 86.552
HIERARCH ESO ISS PBL24 END 86.451
HIERARCH ESO ISS PBLA24 START 75.349
HIERARCH ESO ISS PBLA24 END 75.228
HIERARCH ESO ISS PBL34 START 50.865
HIERARCH ESO ISS PBL34 END 50.699
HIERARCH ESO ISS PBLA34 START 98.553
HIERARCH ESO ISS PBLA34 END 98.478
HIERARCH ESO ISS AMBI TAU0 START 0.003252
HIERARCH ESO ISS AMBI TAU0 END 0.00409
HIERARCH ESO ISS AMBI TEMP 11.86
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.44