Exposure
ID
MATIS.2025-08-07T08:45:55.590_1
Header ID
MATIS.2025-08-07T08:45:55.590
Date updated
2025-08-07 08:55:48 UTC+0000
Release date
2026-08-07 08:55:48 UTC+0000
UTC Start
2025-08-07 08:45:55.590
UTC End
2025-08-07 08:46:57.600
MJD Start
60894.36522674
MJD End
60894.365944448335
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.007775
Ambient temperature (°C)
13.38
Seeing (arcsec)
0.49
Observation
ID
69506
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
51626
Name
HD 218396
RA
346.871703
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 51.9850 52.0450 38.1000 38.1000
U1-U3 97.2870 97.3800 42.3000 42.3000
U1-U4 129.8300 129.7920 59.1470 59.0400
U2-U3 45.6040 45.6350 47.2000 47.1000
U2-U4 83.4210 83.2870 72.0740 71.9480
U3-U4 46.2410 46.0590 96.6220 96.5520
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 60894.36522674
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871703
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 51.985
HIERARCH ESO ISS PBL12 END 52.045
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 97.287
HIERARCH ESO ISS PBL13 END 97.38
HIERARCH ESO ISS PBLA13 START 42.3
HIERARCH ESO ISS PBLA13 END 42.3
HIERARCH ESO ISS PBL14 START 129.83
HIERARCH ESO ISS PBL14 END 129.792
HIERARCH ESO ISS PBLA14 START 59.147
HIERARCH ESO ISS PBLA14 END 59.04
HIERARCH ESO ISS PBL23 START 45.604
HIERARCH ESO ISS PBL23 END 45.635
HIERARCH ESO ISS PBLA23 START 47.2
HIERARCH ESO ISS PBLA23 END 47.1
HIERARCH ESO ISS PBL24 START 83.421
HIERARCH ESO ISS PBL24 END 83.287
HIERARCH ESO ISS PBLA24 START 72.074
HIERARCH ESO ISS PBLA24 END 71.948
HIERARCH ESO ISS PBL34 START 46.241
HIERARCH ESO ISS PBL34 END 46.059
HIERARCH ESO ISS PBLA34 START 96.622
HIERARCH ESO ISS PBLA34 END 96.552
HIERARCH ESO ISS AMBI TAU0 START 0.008067
HIERARCH ESO ISS AMBI TAU0 END 0.007483
HIERARCH ESO ISS AMBI TEMP 13.38
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.51