Exposure
ID
MATIS.2025-08-07T08:55:41.793_1
Header ID
MATIS.2025-08-07T08:55:41.793
Date updated
2025-08-07 09:05:45 UTC+0000
Release date
2026-08-07 09:05:45 UTC+0000
UTC Start
2025-08-07 08:55:41.793
UTC End
2025-08-07 08:56:43.803
MJD Start
60894.37201149
MJD End
60894.37272919833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.006556
Ambient temperature (°C)
13.32
Seeing (arcsec)
0.54
Observation
ID
69514
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
51630
Name
HD 218396
RA
346.871696
DEC
21.13408
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
HIGH_SENS_N_LOW
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 52.5180 52.5720 38.0000 37.9000
U1-U3 98.1110 98.1940 42.0000 41.9000
U1-U4 129.4150 129.3630 58.1450 58.0370
U2-U3 45.8690 45.8950 46.6000 46.5000
U2-U4 82.1420 82.0000 70.8870 70.7590
U3-U4 44.5370 44.3530 95.9690 95.9000
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 60894.37201149
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871696
DEC 21.13408
HIERARCH ESO DET NAME MATISSE-N
HIERARCH ESO INS DIN NAME LOW
HIERARCH ESO INS DIN ID LOW
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 0.0200088
HIERARCH ESO DET SEQ1 PERIOD 0.026
HIERARCH ESO DET NDIT 2385
HIERARCH ESO ISS PBL12 START 52.518
HIERARCH ESO ISS PBL12 END 52.572
HIERARCH ESO ISS PBLA12 START 38.0
HIERARCH ESO ISS PBLA12 END 37.9
HIERARCH ESO ISS PBL13 START 98.111
HIERARCH ESO ISS PBL13 END 98.194
HIERARCH ESO ISS PBLA13 START 42.0
HIERARCH ESO ISS PBLA13 END 41.9
HIERARCH ESO ISS PBL14 START 129.415
HIERARCH ESO ISS PBL14 END 129.363
HIERARCH ESO ISS PBLA14 START 58.145
HIERARCH ESO ISS PBLA14 END 58.037
HIERARCH ESO ISS PBL23 START 45.869
HIERARCH ESO ISS PBL23 END 45.895
HIERARCH ESO ISS PBLA23 START 46.6
HIERARCH ESO ISS PBLA23 END 46.5
HIERARCH ESO ISS PBL24 START 82.142
HIERARCH ESO ISS PBL24 END 82.0
HIERARCH ESO ISS PBLA24 START 70.887
HIERARCH ESO ISS PBLA24 END 70.759
HIERARCH ESO ISS PBL34 START 44.537
HIERARCH ESO ISS PBL34 END 44.353
HIERARCH ESO ISS PBLA34 START 95.969
HIERARCH ESO ISS PBLA34 END 95.9
HIERARCH ESO ISS AMBI TAU0 START 0.006556
HIERARCH ESO ISS AMBI TAU0 END 0.006556
HIERARCH ESO ISS AMBI TEMP 13.32
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.54