Exposure
ID
MATIS.2025-08-07T07:41:04.324_1
Header ID
MATIS.2025-08-07T07:41:04.324
Date updated
2025-08-07 07:50:45 UTC+0000
Release date
2026-08-07 07:50:44 UTC+0000
UTC Start
2025-08-07 07:41:04.324
UTC End
2025-08-07 07:42:06.334
MJD Start
60894.32018893
MJD End
60894.320906638335
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.007909
Ambient temperature (°C)
13.38
Seeing (arcsec)
0.725
Observation
ID
69468
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
51607
Name
HD 218396
RA
346.871676
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 47.6780 47.7560 37.7000 37.7000
U1-U3 89.9510 90.0930 43.4000 43.4000
U1-U4 128.6080 128.6850 64.7830 64.7060
U2-U3 42.7810 42.8410 49.8000 49.8000
U2-U4 88.8610 88.8180 78.9340 78.8350
U3-U4 55.5170 55.3980 100.9340 100.8640
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 60894.32018893
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871676
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 47.678
HIERARCH ESO ISS PBL12 END 47.756
HIERARCH ESO ISS PBLA12 START 37.7
HIERARCH ESO ISS PBLA12 END 37.7
HIERARCH ESO ISS PBL13 START 89.951
HIERARCH ESO ISS PBL13 END 90.093
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 128.608
HIERARCH ESO ISS PBL14 END 128.685
HIERARCH ESO ISS PBLA14 START 64.783
HIERARCH ESO ISS PBLA14 END 64.706
HIERARCH ESO ISS PBL23 START 42.781
HIERARCH ESO ISS PBL23 END 42.841
HIERARCH ESO ISS PBLA23 START 49.8
HIERARCH ESO ISS PBLA23 END 49.8
HIERARCH ESO ISS PBL24 START 88.861
HIERARCH ESO ISS PBL24 END 88.818
HIERARCH ESO ISS PBLA24 START 78.934
HIERARCH ESO ISS PBLA24 END 78.835
HIERARCH ESO ISS PBL34 START 55.517
HIERARCH ESO ISS PBL34 END 55.398
HIERARCH ESO ISS PBLA34 START 100.934
HIERARCH ESO ISS PBLA34 END 100.864
HIERARCH ESO ISS AMBI TAU0 START 0.007254
HIERARCH ESO ISS AMBI TAU0 END 0.008564
HIERARCH ESO ISS AMBI TEMP 13.38
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.74