Exposure
ID
MATIS.2025-08-10T07:45:25.468_1
Header ID
MATIS.2025-08-10T07:45:25.468
Date updated
2025-08-10 07:55:44 UTC+0000
Release date
2026-08-10 07:55:44 UTC+0000
UTC Start
2025-08-10 07:45:25.468
UTC End
2025-08-10 07:46:27.478
MJD Start
60897.32321143
MJD End
60897.32392913833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.003704
Ambient temperature (°C)
11.95
Seeing (arcsec)
0.425
Observation
ID
69779
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
51805
Name
HD 218396
RA
346.871479
DEC
21.13373
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 48.8660 48.9420 38.0000 38.0000
U1-U3 92.0720 92.2050 43.4000 43.4000
U1-U4 129.5870 129.6350 63.5290 63.4430
U2-U3 43.6570 43.7110 49.4000 49.3000
U2-U4 88.0300 87.9630 77.3570 77.2500
U3-U4 53.5510 53.4130 99.8480 99.7770
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 60897.32321143
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871479
DEC 21.13373
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 48.866
HIERARCH ESO ISS PBL12 END 48.942
HIERARCH ESO ISS PBLA12 START 38.0
HIERARCH ESO ISS PBLA12 END 38.0
HIERARCH ESO ISS PBL13 START 92.072
HIERARCH ESO ISS PBL13 END 92.205
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.587
HIERARCH ESO ISS PBL14 END 129.635
HIERARCH ESO ISS PBLA14 START 63.529
HIERARCH ESO ISS PBLA14 END 63.443
HIERARCH ESO ISS PBL23 START 43.657
HIERARCH ESO ISS PBL23 END 43.711
HIERARCH ESO ISS PBLA23 START 49.4
HIERARCH ESO ISS PBLA23 END 49.3
HIERARCH ESO ISS PBL24 START 88.03
HIERARCH ESO ISS PBL24 END 87.963
HIERARCH ESO ISS PBLA24 START 77.357
HIERARCH ESO ISS PBLA24 END 77.25
HIERARCH ESO ISS PBL34 START 53.551
HIERARCH ESO ISS PBL34 END 53.413
HIERARCH ESO ISS PBLA34 START 99.848
HIERARCH ESO ISS PBLA34 END 99.777
HIERARCH ESO ISS AMBI TAU0 START 0.003704
HIERARCH ESO ISS AMBI TAU0 END 0.003704
HIERARCH ESO ISS AMBI TEMP 11.95
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.44