Exposure
ID
MATIS.2025-08-11T07:45:36.766_1
Header ID
MATIS.2025-08-11T07:45:36.766
Date updated
2025-08-11 07:50:42 UTC+0000
Release date
2026-08-11 07:50:42 UTC+0000
UTC Start
2025-08-11 07:45:36.766
UTC End
2025-08-11 07:46:43.210
MJD Start
60898.3233422
MJD End
60898.324111227776
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.002974
Ambient temperature (°C)
14.77
Seeing (arcsec)
0.49
Observation
ID
69907
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
51882
Name
HD 218396
RA
346.87165
DEC
21.1337
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
SI_PHOT_LM_MEDIUM
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 49.1600 49.2370 38.1000 38.1000
U1-U3 92.5870 92.7210 43.3000 43.3000
U1-U4 129.7640 129.8060 63.1930 63.1020
U2-U3 43.8640 43.9170 49.2000 49.2000
U2-U4 87.7580 87.6830 76.9400 76.8290
U3-U4 53.0080 52.8610 99.5720 99.4990
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 60898.3233422
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.87165
DEC 21.1337
HIERARCH ESO DET NAME MATISSE-LM
HIERARCH ESO INS FIL NAME LM
HIERARCH ESO INS FIL ID LM
HIERARCH ESO INS DIL NAME MED
HIERARCH ESO INS DIL ID MED
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 10.0
HIERARCH ESO DET SEQ1 PERIOD 11.074
HIERARCH ESO DET NDIT 6
HIERARCH ESO ISS PBL12 START 49.16
HIERARCH ESO ISS PBL12 END 49.237
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 92.587
HIERARCH ESO ISS PBL13 END 92.721
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 129.764
HIERARCH ESO ISS PBL14 END 129.806
HIERARCH ESO ISS PBLA14 START 63.193
HIERARCH ESO ISS PBLA14 END 63.102
HIERARCH ESO ISS PBL23 START 43.864
HIERARCH ESO ISS PBL23 END 43.917
HIERARCH ESO ISS PBLA23 START 49.2
HIERARCH ESO ISS PBLA23 END 49.2
HIERARCH ESO ISS PBL24 START 87.758
HIERARCH ESO ISS PBL24 END 87.683
HIERARCH ESO ISS PBLA24 START 76.94
HIERARCH ESO ISS PBLA24 END 76.829
HIERARCH ESO ISS PBL34 START 53.008
HIERARCH ESO ISS PBL34 END 52.861
HIERARCH ESO ISS PBLA34 START 99.572
HIERARCH ESO ISS PBLA34 END 99.499
HIERARCH ESO ISS AMBI TAU0 START 0.002575
HIERARCH ESO ISS AMBI TAU0 END 0.003373
HIERARCH ESO ISS AMBI TEMP 14.77
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.45