Exposure
ID
MATIS.2025-08-07T06:46:04.346_1
Header ID
MATIS.2025-08-07T06:46:04.346
Date updated
2025-08-07 06:55:55 UTC+0000
Release date
2026-08-07 06:55:55 UTC+0000
UTC Start
2025-08-07 06:46:04.346
UTC End
2025-08-07 06:47:10.790
MJD Start
60894.28199475
MJD End
60894.28276377778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.007254
Ambient temperature (°C)
13.4
Seeing (arcsec)
0.56
Observation
ID
69421
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
51584
Name
HD 218396
RA
346.871636
DEC
21.13409
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 43.2030 43.3000 35.0000 35.1000
U1-U3 81.4300 81.6230 42.3000 42.4000
U1-U4 121.7320 121.9290 68.4400 68.3740
U2-U3 38.9600 39.0510 50.4000 50.4000
U2-U4 88.9000 88.9440 83.9560 83.8560
U3-U4 60.4070 60.3350 104.8470 104.7620
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 60894.28199475
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871636
DEC 21.13409
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 43.203
HIERARCH ESO ISS PBL12 END 43.3
HIERARCH ESO ISS PBLA12 START 35.0
HIERARCH ESO ISS PBLA12 END 35.1
HIERARCH ESO ISS PBL13 START 81.43
HIERARCH ESO ISS PBL13 END 81.623
HIERARCH ESO ISS PBLA13 START 42.3
HIERARCH ESO ISS PBLA13 END 42.4
HIERARCH ESO ISS PBL14 START 121.732
HIERARCH ESO ISS PBL14 END 121.929
HIERARCH ESO ISS PBLA14 START 68.44
HIERARCH ESO ISS PBLA14 END 68.374
HIERARCH ESO ISS PBL23 START 38.96
HIERARCH ESO ISS PBL23 END 39.051
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 88.9
HIERARCH ESO ISS PBL24 END 88.944
HIERARCH ESO ISS PBLA24 START 83.956
HIERARCH ESO ISS PBLA24 END 83.856
HIERARCH ESO ISS PBL34 START 60.407
HIERARCH ESO ISS PBL34 END 60.335
HIERARCH ESO ISS PBLA34 START 104.847
HIERARCH ESO ISS PBLA34 END 104.762
HIERARCH ESO ISS AMBI TAU0 START 0.007676
HIERARCH ESO ISS AMBI TAU0 END 0.006832
HIERARCH ESO ISS AMBI TEMP 13.4
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.58