Exposure
ID
MATIS.2025-08-07T06:49:04.747_1
Header ID
MATIS.2025-08-07T06:49:04.747
Date updated
2025-08-07 07:00:52 UTC+0000
Release date
2026-08-07 07:00:52 UTC+0000
UTC Start
2025-08-07 06:49:04.747
UTC End
2025-08-07 06:50:11.191
MJD Start
60894.28408272
MJD End
60894.284851747776
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0079345
Ambient temperature (°C)
13.39
Seeing (arcsec)
0.535
Observation
ID
69425
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
51586
Name
HD 218396
RA
346.871639
DEC
21.13409
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 43.4590 43.5670 35.2000 35.3000
U1-U3 81.9390 82.1530 42.4000 42.5000
U1-U4 122.2490 122.4630 68.2640 68.1890
U2-U3 39.2000 39.3000 50.4000 50.4000
U2-U4 89.0110 89.0540 83.6910 83.5790
U3-U4 60.2140 60.1300 104.6220 104.5280
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 60894.28408272
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871639
DEC 21.13409
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 43.459
HIERARCH ESO ISS PBL12 END 43.567
HIERARCH ESO ISS PBLA12 START 35.2
HIERARCH ESO ISS PBLA12 END 35.3
HIERARCH ESO ISS PBL13 START 81.939
HIERARCH ESO ISS PBL13 END 82.153
HIERARCH ESO ISS PBLA13 START 42.4
HIERARCH ESO ISS PBLA13 END 42.5
HIERARCH ESO ISS PBL14 START 122.249
HIERARCH ESO ISS PBL14 END 122.463
HIERARCH ESO ISS PBLA14 START 68.264
HIERARCH ESO ISS PBLA14 END 68.189
HIERARCH ESO ISS PBL23 START 39.2
HIERARCH ESO ISS PBL23 END 39.3
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 89.011
HIERARCH ESO ISS PBL24 END 89.054
HIERARCH ESO ISS PBLA24 START 83.691
HIERARCH ESO ISS PBLA24 END 83.579
HIERARCH ESO ISS PBL34 START 60.214
HIERARCH ESO ISS PBL34 END 60.13
HIERARCH ESO ISS PBLA34 START 104.622
HIERARCH ESO ISS PBLA34 END 104.528
HIERARCH ESO ISS AMBI TAU0 START 0.008466
HIERARCH ESO ISS AMBI TAU0 END 0.007403
HIERARCH ESO ISS AMBI TEMP 13.39
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.56