Exposure
ID
MATIS.2025-08-09T07:44:10.873_1
Header ID
MATIS.2025-08-09T07:44:10.873
Date updated
2025-08-09 07:55:44 UTC+0000
Release date
2026-08-09 07:55:43 UTC+0000
UTC Start
2025-08-09 07:44:10.873
UTC End
2025-08-09 07:45:17.317
MJD Start
60896.32234807
MJD End
60896.32311709778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0069145000000000005
Ambient temperature (°C)
12.35
Seeing (arcsec)
0.485
Observation
ID
69627
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
51707
Name
HD 218396
RA
346.871635
DEC
21.13389
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 48.4930 48.5870 37.9000 38.0000
U1-U3 91.4120 91.5790 43.4000 43.4000
U1-U4 129.3230 129.3930 63.9380 63.8360
U2-U3 43.3890 43.4570 49.5000 49.5000
U2-U4 88.3360 88.2630 77.8660 77.7390
U3-U4 54.2070 54.0460 100.1910 100.1040
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 60896.32234807
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871635
DEC 21.13389
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 48.493
HIERARCH ESO ISS PBL12 END 48.587
HIERARCH ESO ISS PBLA12 START 37.9
HIERARCH ESO ISS PBLA12 END 38.0
HIERARCH ESO ISS PBL13 START 91.412
HIERARCH ESO ISS PBL13 END 91.579
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.323
HIERARCH ESO ISS PBL14 END 129.393
HIERARCH ESO ISS PBLA14 START 63.938
HIERARCH ESO ISS PBLA14 END 63.836
HIERARCH ESO ISS PBL23 START 43.389
HIERARCH ESO ISS PBL23 END 43.457
HIERARCH ESO ISS PBLA23 START 49.5
HIERARCH ESO ISS PBLA23 END 49.5
HIERARCH ESO ISS PBL24 START 88.336
HIERARCH ESO ISS PBL24 END 88.263
HIERARCH ESO ISS PBLA24 START 77.866
HIERARCH ESO ISS PBLA24 END 77.739
HIERARCH ESO ISS PBL34 START 54.207
HIERARCH ESO ISS PBL34 END 54.046
HIERARCH ESO ISS PBLA34 START 100.191
HIERARCH ESO ISS PBLA34 END 100.104
HIERARCH ESO ISS AMBI TAU0 START 0.00703
HIERARCH ESO ISS AMBI TAU0 END 0.006799
HIERARCH ESO ISS AMBI TEMP 12.35
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.47