Exposure
ID
MATIS.2025-08-11T07:16:52.283_1
Header ID
MATIS.2025-08-11T07:16:52.283
Date updated
2025-08-11 07:25:44 UTC+0000
Release date
2026-08-11 07:25:44 UTC+0000
UTC Start
2025-08-11 07:16:52.283
UTC End
2025-08-11 07:17:58.727
MJD Start
60898.30338291
MJD End
60898.30415193778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0043415
Ambient temperature (°C)
15.3
Seeing (arcsec)
0.37
Observation
ID
69887
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
51872
Name
HD 218396
RA
346.87163
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 47.0250 47.1260 37.4000 37.5000
U1-U3 88.7590 88.9450 43.4000 43.4000
U1-U4 127.9050 128.0210 65.4120 65.3170
U2-U3 42.2730 42.3530 50.0000 50.0000
U2-U4 89.1520 89.1140 79.7430 79.6210
U3-U4 56.4580 56.3190 101.5170 101.4280
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 60898.30338291
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.87163
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 47.025
HIERARCH ESO ISS PBL12 END 47.126
HIERARCH ESO ISS PBLA12 START 37.4
HIERARCH ESO ISS PBLA12 END 37.5
HIERARCH ESO ISS PBL13 START 88.759
HIERARCH ESO ISS PBL13 END 88.945
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 127.905
HIERARCH ESO ISS PBL14 END 128.021
HIERARCH ESO ISS PBLA14 START 65.412
HIERARCH ESO ISS PBLA14 END 65.317
HIERARCH ESO ISS PBL23 START 42.273
HIERARCH ESO ISS PBL23 END 42.353
HIERARCH ESO ISS PBLA23 START 50.0
HIERARCH ESO ISS PBLA23 END 50.0
HIERARCH ESO ISS PBL24 START 89.152
HIERARCH ESO ISS PBL24 END 89.114
HIERARCH ESO ISS PBLA24 START 79.743
HIERARCH ESO ISS PBLA24 END 79.621
HIERARCH ESO ISS PBL34 START 56.458
HIERARCH ESO ISS PBL34 END 56.319
HIERARCH ESO ISS PBLA34 START 101.517
HIERARCH ESO ISS PBLA34 END 101.428
HIERARCH ESO ISS AMBI TAU0 START 0.003491
HIERARCH ESO ISS AMBI TAU0 END 0.005192
HIERARCH ESO ISS AMBI TEMP 15.3
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.37