Exposure
ID
MATIS.2025-08-10T07:56:37.179_1
Header ID
MATIS.2025-08-10T07:56:37.179
Date updated
2025-08-10 08:05:43 UTC+0000
Release date
2026-08-10 08:05:43 UTC+0000
UTC Start
2025-08-10 07:56:37.179
UTC End
2025-08-10 07:57:43.623
MJD Start
60897.33098587
MJD End
60897.33175489778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0038915
Ambient temperature (°C)
11.96
Seeing (arcsec)
0.45499999999999996
Observation
ID
69786
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
51809
Name
HD 218396
RA
346.871492
DEC
21.13373
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 49.6490 49.7260 38.2000 38.2000
U1-U3 93.4330 93.5650 43.3000 43.2000
U1-U4 129.9970 130.0260 62.6040 62.5070
U2-U3 44.1980 44.2490 49.0000 48.9000
U2-U4 87.2430 87.1540 76.2180 76.1010
U3-U4 52.0490 51.8910 99.1030 99.0270
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 60897.33098587
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871492
DEC 21.13373
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 49.649
HIERARCH ESO ISS PBL12 END 49.726
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 93.433
HIERARCH ESO ISS PBL13 END 93.565
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 129.997
HIERARCH ESO ISS PBL14 END 130.026
HIERARCH ESO ISS PBLA14 START 62.604
HIERARCH ESO ISS PBLA14 END 62.507
HIERARCH ESO ISS PBL23 START 44.198
HIERARCH ESO ISS PBL23 END 44.249
HIERARCH ESO ISS PBLA23 START 49.0
HIERARCH ESO ISS PBLA23 END 48.9
HIERARCH ESO ISS PBL24 START 87.243
HIERARCH ESO ISS PBL24 END 87.154
HIERARCH ESO ISS PBLA24 START 76.218
HIERARCH ESO ISS PBLA24 END 76.101
HIERARCH ESO ISS PBL34 START 52.049
HIERARCH ESO ISS PBL34 END 51.891
HIERARCH ESO ISS PBLA34 START 99.103
HIERARCH ESO ISS PBLA34 END 99.027
HIERARCH ESO ISS AMBI TAU0 START 0.003331
HIERARCH ESO ISS AMBI TAU0 END 0.004452
HIERARCH ESO ISS AMBI TEMP 11.96
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.42