Exposure
ID
MATIS.2025-08-09T07:47:30.691_1
Header ID
MATIS.2025-08-09T07:47:30.691
Date updated
2025-08-09 07:55:44 UTC+0000
Release date
2026-08-09 07:55:43 UTC+0000
UTC Start
2025-08-09 07:47:30.691
UTC End
2025-08-09 07:48:37.135
MJD Start
60896.32466078
MJD End
60896.32542980778
Exposure time (s)
66.4
Validation level
1
Tau 0: Coherence time (s)
0.0072575
Ambient temperature (°C)
12.46
Seeing (arcsec)
0.52
Observation
ID
69629
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
51708
Name
HD 218396
RA
346.871637
DEC
21.13389
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 48.7340 48.8250 38.0000 38.0000
U1-U3 91.8400 92.0000 43.4000 43.4000
U1-U4 129.4980 129.5600 63.6730 63.5720
U2-U3 43.5630 43.6280 49.4000 49.4000
U2-U4 88.1430 88.0660 77.5360 77.4100
U3-U4 53.7870 53.6250 99.9680 99.8830
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 60896.32466078
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871637
DEC 21.13389
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 48.734
HIERARCH ESO ISS PBL12 END 48.825
HIERARCH ESO ISS PBLA12 START 38.0
HIERARCH ESO ISS PBLA12 END 38.0
HIERARCH ESO ISS PBL13 START 91.84
HIERARCH ESO ISS PBL13 END 92.0
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.498
HIERARCH ESO ISS PBL14 END 129.56
HIERARCH ESO ISS PBLA14 START 63.673
HIERARCH ESO ISS PBLA14 END 63.572
HIERARCH ESO ISS PBL23 START 43.563
HIERARCH ESO ISS PBL23 END 43.628
HIERARCH ESO ISS PBLA23 START 49.4
HIERARCH ESO ISS PBLA23 END 49.4
HIERARCH ESO ISS PBL24 START 88.143
HIERARCH ESO ISS PBL24 END 88.066
HIERARCH ESO ISS PBLA24 START 77.536
HIERARCH ESO ISS PBLA24 END 77.41
HIERARCH ESO ISS PBL34 START 53.787
HIERARCH ESO ISS PBL34 END 53.625
HIERARCH ESO ISS PBLA34 START 99.968
HIERARCH ESO ISS PBLA34 END 99.883
HIERARCH ESO ISS AMBI TAU0 START 0.007458
HIERARCH ESO ISS AMBI TAU0 END 0.007057
HIERARCH ESO ISS AMBI TEMP 12.46
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.61