Exposure
ID
MATIS.2025-08-07T08:08:04.883_1
Header ID
MATIS.2025-08-07T08:08:04.883
Date updated
2025-08-07 08:15:40 UTC+0000
Release date
2026-08-07 08:15:40 UTC+0000
UTC Start
2025-08-07 08:08:04.883
UTC End
2025-08-07 08:09:06.893
MJD Start
60894.3389454
MJD End
60894.33966310833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.008343
Ambient temperature (°C)
13.67
Seeing (arcsec)
0.625
Observation
ID
69492
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
51619
Name
HD 218396
RA
346.871691
DEC
21.13408
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 49.6270 49.6980 38.2000 38.2000
U1-U3 93.3950 93.5160 43.3000 43.2000
U1-U4 129.9880 130.0160 62.6300 62.5420
U2-U3 44.1830 44.2300 49.0000 48.9000
U2-U4 87.2680 87.1870 76.2510 76.1440
U3-U4 52.0930 51.9490 99.1230 99.0550
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 60894.3389454
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871691
DEC 21.13408
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 49.627
HIERARCH ESO ISS PBL12 END 49.698
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 93.395
HIERARCH ESO ISS PBL13 END 93.516
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 129.988
HIERARCH ESO ISS PBL14 END 130.016
HIERARCH ESO ISS PBLA14 START 62.63
HIERARCH ESO ISS PBLA14 END 62.542
HIERARCH ESO ISS PBL23 START 44.183
HIERARCH ESO ISS PBL23 END 44.23
HIERARCH ESO ISS PBLA23 START 49.0
HIERARCH ESO ISS PBLA23 END 48.9
HIERARCH ESO ISS PBL24 START 87.268
HIERARCH ESO ISS PBL24 END 87.187
HIERARCH ESO ISS PBLA24 START 76.251
HIERARCH ESO ISS PBLA24 END 76.144
HIERARCH ESO ISS PBL34 START 52.093
HIERARCH ESO ISS PBL34 END 51.949
HIERARCH ESO ISS PBLA34 START 99.123
HIERARCH ESO ISS PBLA34 END 99.055
HIERARCH ESO ISS AMBI TAU0 START 0.008343
HIERARCH ESO ISS AMBI TAU0 END 0.008343
HIERARCH ESO ISS AMBI TEMP 13.67
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.66