Exposure
ID
MATIS.2025-08-11T07:11:54.648_1
Header ID
MATIS.2025-08-11T07:11:54.648
Date updated
2025-08-11 07:20:33 UTC+0000
Release date
2026-08-11 07:20:33 UTC+0000
UTC Start
2025-08-11 07:11:54.648
UTC End
2025-08-11 07:12:56.658
MJD Start
60898.29993805
MJD End
60898.30065575833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.004487
Ambient temperature (°C)
15.18
Seeing (arcsec)
0.425
Observation
ID
69882
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
51869
Name
HD 218396
RA
346.871628
DEC
21.13369
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 46.6380 46.7200 37.3000 37.3000
U1-U3 88.0440 88.1950 43.4000 43.4000
U1-U4 127.4370 127.5390 65.7650 65.6910
U2-U3 41.9640 42.0300 50.1000 50.1000
U2-U4 89.2740 89.2510 80.2060 80.1090
U3-U4 56.9740 56.8680 101.8580 101.7860
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 60898.29993805
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871628
DEC 21.13369
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 46.638
HIERARCH ESO ISS PBL12 END 46.72
HIERARCH ESO ISS PBLA12 START 37.3
HIERARCH ESO ISS PBLA12 END 37.3
HIERARCH ESO ISS PBL13 START 88.044
HIERARCH ESO ISS PBL13 END 88.195
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 127.437
HIERARCH ESO ISS PBL14 END 127.539
HIERARCH ESO ISS PBLA14 START 65.765
HIERARCH ESO ISS PBLA14 END 65.691
HIERARCH ESO ISS PBL23 START 41.964
HIERARCH ESO ISS PBL23 END 42.03
HIERARCH ESO ISS PBLA23 START 50.1
HIERARCH ESO ISS PBLA23 END 50.1
HIERARCH ESO ISS PBL24 START 89.274
HIERARCH ESO ISS PBL24 END 89.251
HIERARCH ESO ISS PBLA24 START 80.206
HIERARCH ESO ISS PBLA24 END 80.109
HIERARCH ESO ISS PBL34 START 56.974
HIERARCH ESO ISS PBL34 END 56.868
HIERARCH ESO ISS PBLA34 START 101.858
HIERARCH ESO ISS PBLA34 END 101.786
HIERARCH ESO ISS AMBI TAU0 START 0.004487
HIERARCH ESO ISS AMBI TAU0 END 0.004487
HIERARCH ESO ISS AMBI TEMP 15.18
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.44