Exposure
ID
MATIS.2025-08-11T07:47:06.350_1
Header ID
MATIS.2025-08-11T07:47:06.350
Date updated
2025-08-11 07:55:31 UTC+0000
Release date
2026-08-11 07:55:31 UTC+0000
UTC Start
2025-08-11 07:47:06.350
UTC End
2025-08-11 07:48:08.360
MJD Start
60898.32437905
MJD End
60898.32509675833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.003688
Ambient temperature (°C)
14.75
Seeing (arcsec)
0.44
Observation
ID
69908
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
51882
Name
HD 218396
RA
346.87165
DEC
21.1337
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 49.2630 49.3370 38.1000 38.1000
U1-U3 92.7660 92.8950 43.3000 43.3000
U1-U4 129.8200 129.8580 63.0720 62.9840
U2-U3 43.9350 43.9860 49.2000 49.1000
U2-U4 87.6570 87.5810 76.7920 76.6830
U3-U4 52.8120 52.6680 99.4740 99.4030
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 60898.32437905
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.87165
DEC 21.1337
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 49.263
HIERARCH ESO ISS PBL12 END 49.337
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 92.766
HIERARCH ESO ISS PBL13 END 92.895
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 129.82
HIERARCH ESO ISS PBL14 END 129.858
HIERARCH ESO ISS PBLA14 START 63.072
HIERARCH ESO ISS PBLA14 END 62.984
HIERARCH ESO ISS PBL23 START 43.935
HIERARCH ESO ISS PBL23 END 43.986
HIERARCH ESO ISS PBLA23 START 49.2
HIERARCH ESO ISS PBLA23 END 49.1
HIERARCH ESO ISS PBL24 START 87.657
HIERARCH ESO ISS PBL24 END 87.581
HIERARCH ESO ISS PBLA24 START 76.792
HIERARCH ESO ISS PBLA24 END 76.683
HIERARCH ESO ISS PBL34 START 52.812
HIERARCH ESO ISS PBL34 END 52.668
HIERARCH ESO ISS PBLA34 START 99.474
HIERARCH ESO ISS PBLA34 END 99.403
HIERARCH ESO ISS AMBI TAU0 START 0.003373
HIERARCH ESO ISS AMBI TAU0 END 0.004003
HIERARCH ESO ISS AMBI TEMP 14.75
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.43