Exposure
ID
MATIS.2025-08-10T07:59:48.963_1
Header ID
MATIS.2025-08-10T07:59:48.963
Date updated
2025-08-10 08:10:34 UTC+0000
Release date
2026-08-10 08:10:33 UTC+0000
UTC Start
2025-08-10 07:59:48.963
UTC End
2025-08-10 08:00:55.407
MJD Start
60897.33320559
MJD End
60897.33397461778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0039655
Ambient temperature (°C)
11.97
Seeing (arcsec)
0.455
Observation
ID
69791
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
51811
Name
HD 218396
RA
346.871494
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 49.8660 49.9510 38.2000 38.2000
U1-U3 93.8040 93.9490 43.2000 43.2000
U1-U4 130.0740 130.1000 62.3310 62.2220
U2-U3 44.3420 44.3980 48.8000 48.8000
U2-U4 86.9880 86.8830 75.8860 75.7530
U3-U4 51.6000 51.4190 98.8900 98.8070
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 60897.33320559
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871494
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 49.866
HIERARCH ESO ISS PBL12 END 49.951
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 93.804
HIERARCH ESO ISS PBL13 END 93.949
HIERARCH ESO ISS PBLA13 START 43.2
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 130.074
HIERARCH ESO ISS PBL14 END 130.1
HIERARCH ESO ISS PBLA14 START 62.331
HIERARCH ESO ISS PBLA14 END 62.222
HIERARCH ESO ISS PBL23 START 44.342
HIERARCH ESO ISS PBL23 END 44.398
HIERARCH ESO ISS PBLA23 START 48.8
HIERARCH ESO ISS PBLA23 END 48.8
HIERARCH ESO ISS PBL24 START 86.988
HIERARCH ESO ISS PBL24 END 86.883
HIERARCH ESO ISS PBLA24 START 75.886
HIERARCH ESO ISS PBLA24 END 75.753
HIERARCH ESO ISS PBL34 START 51.6
HIERARCH ESO ISS PBL34 END 51.419
HIERARCH ESO ISS PBLA34 START 98.89
HIERARCH ESO ISS PBLA34 END 98.807
HIERARCH ESO ISS AMBI TAU0 START 0.00525
HIERARCH ESO ISS AMBI TAU0 END 0.002681
HIERARCH ESO ISS AMBI TEMP 11.97
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.53