Exposure
ID
MATIS.2025-08-07T07:47:23.334_1
Header ID
MATIS.2025-08-07T07:47:23.334
Date updated
2025-08-07 07:56:13 UTC+0000
Release date
2026-08-07 07:56:12 UTC+0000
UTC Start
2025-08-07 07:47:23.334
UTC End
2025-08-07 07:48:25.344
MJD Start
60894.32457563
MJD End
60894.325293338334
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.0072895
Ambient temperature (°C)
13.43
Seeing (arcsec)
0.79
Observation
ID
69466
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
51606
Name
HD 218396
RA
346.871677
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 48.1510 48.2300 37.8000 37.9000
U1-U3 90.8030 90.9440 43.4000 43.4000
U1-U4 129.0460 129.1130 64.3040 64.2210
U2-U3 43.1370 43.1960 49.7000 49.6000
U2-U4 88.5790 88.5260 78.3250 78.2210
U3-U4 54.7770 54.6480 100.5070 100.4350
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 60894.32457563
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871677
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 48.151
HIERARCH ESO ISS PBL12 END 48.23
HIERARCH ESO ISS PBLA12 START 37.8
HIERARCH ESO ISS PBLA12 END 37.9
HIERARCH ESO ISS PBL13 START 90.803
HIERARCH ESO ISS PBL13 END 90.944
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.046
HIERARCH ESO ISS PBL14 END 129.113
HIERARCH ESO ISS PBLA14 START 64.304
HIERARCH ESO ISS PBLA14 END 64.221
HIERARCH ESO ISS PBL23 START 43.137
HIERARCH ESO ISS PBL23 END 43.196
HIERARCH ESO ISS PBLA23 START 49.7
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 88.579
HIERARCH ESO ISS PBL24 END 88.526
HIERARCH ESO ISS PBLA24 START 78.325
HIERARCH ESO ISS PBLA24 END 78.221
HIERARCH ESO ISS PBL34 START 54.777
HIERARCH ESO ISS PBL34 END 54.648
HIERARCH ESO ISS PBLA34 START 100.507
HIERARCH ESO ISS PBLA34 END 100.435
HIERARCH ESO ISS AMBI TAU0 START 0.006725
HIERARCH ESO ISS AMBI TAU0 END 0.007854
HIERARCH ESO ISS AMBI TEMP 13.43
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79