Exposure
ID
MATIS.2025-08-07T07:06:59.637_1
Header ID
MATIS.2025-08-07T07:06:59.637
Date updated
2025-08-07 07:15:45 UTC+0000
Release date
2026-08-07 07:15:45 UTC+0000
UTC Start
2025-08-07 07:06:59.637
UTC End
2025-08-07 07:08:01.647
MJD Start
60894.29652358
MJD End
60894.29724128833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.008641
Ambient temperature (°C)
13.33
Seeing (arcsec)
0.61
Observation
ID
69445
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
51595
Name
HD 218396
RA
346.871655
DEC
21.13409
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 44.9640 45.0530 36.3000 36.4000
U1-U3 84.8810 85.0510 43.0000 43.0000
U1-U4 124.9950 125.1400 67.1590 67.0900
U2-U3 40.5580 40.6350 50.4000 50.4000
U2-U4 89.4030 89.4110 82.0950 81.9990
U3-U4 58.8860 58.7970 103.3130 103.2360
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 60894.29652358
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871655
DEC 21.13409
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 44.964
HIERARCH ESO ISS PBL12 END 45.053
HIERARCH ESO ISS PBLA12 START 36.3
HIERARCH ESO ISS PBLA12 END 36.4
HIERARCH ESO ISS PBL13 START 84.881
HIERARCH ESO ISS PBL13 END 85.051
HIERARCH ESO ISS PBLA13 START 43.0
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 124.995
HIERARCH ESO ISS PBL14 END 125.14
HIERARCH ESO ISS PBLA14 START 67.159
HIERARCH ESO ISS PBLA14 END 67.09
HIERARCH ESO ISS PBL23 START 40.558
HIERARCH ESO ISS PBL23 END 40.635
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 89.403
HIERARCH ESO ISS PBL24 END 89.411
HIERARCH ESO ISS PBLA24 START 82.095
HIERARCH ESO ISS PBLA24 END 81.999
HIERARCH ESO ISS PBL34 START 58.886
HIERARCH ESO ISS PBL34 END 58.797
HIERARCH ESO ISS PBLA34 START 103.313
HIERARCH ESO ISS PBLA34 END 103.236
HIERARCH ESO ISS AMBI TAU0 START 0.008641
HIERARCH ESO ISS AMBI TAU0 END 0.008641
HIERARCH ESO ISS AMBI TEMP 13.33
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.61