Exposure
ID
MATIS.2025-08-07T07:21:57.963_1
Header ID
MATIS.2025-08-07T07:21:57.963
Date updated
2025-08-07 07:30:52 UTC+0000
Release date
2026-08-07 07:30:52 UTC+0000
UTC Start
2025-08-07 07:21:57.963
UTC End
2025-08-07 07:22:59.973
MJD Start
60894.30692087
MJD End
60894.307638578335
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.0081765
Ambient temperature (°C)
13.29
Seeing (arcsec)
0.595
Observation
ID
69457
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
51601
Name
HD 218396
RA
346.871665
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 46.1870 46.2700 37.0000 37.1000
U1-U3 87.2040 87.3590 43.3000 43.3000
U1-U4 126.8450 126.9570 66.1590 66.0870
U2-U3 41.5970 41.6650 50.2000 50.2000
U2-U4 89.3700 89.3560 80.7290 80.6340
U3-U4 57.5380 57.4380 102.2500 102.1780
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 60894.30692087
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871665
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 46.187
HIERARCH ESO ISS PBL12 END 46.27
HIERARCH ESO ISS PBLA12 START 37.0
HIERARCH ESO ISS PBLA12 END 37.1
HIERARCH ESO ISS PBL13 START 87.204
HIERARCH ESO ISS PBL13 END 87.359
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 126.845
HIERARCH ESO ISS PBL14 END 126.957
HIERARCH ESO ISS PBLA14 START 66.159
HIERARCH ESO ISS PBLA14 END 66.087
HIERARCH ESO ISS PBL23 START 41.597
HIERARCH ESO ISS PBL23 END 41.665
HIERARCH ESO ISS PBLA23 START 50.2
HIERARCH ESO ISS PBLA23 END 50.2
HIERARCH ESO ISS PBL24 START 89.37
HIERARCH ESO ISS PBL24 END 89.356
HIERARCH ESO ISS PBLA24 START 80.729
HIERARCH ESO ISS PBLA24 END 80.634
HIERARCH ESO ISS PBL34 START 57.538
HIERARCH ESO ISS PBL34 END 57.438
HIERARCH ESO ISS PBLA34 START 102.25
HIERARCH ESO ISS PBLA34 END 102.178
HIERARCH ESO ISS AMBI TAU0 START 0.008659
HIERARCH ESO ISS AMBI TAU0 END 0.007694
HIERARCH ESO ISS AMBI TEMP 13.29
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.6