Exposure
ID
MATIS.2025-08-06T07:44:52.133_1
Header ID
MATIS.2025-08-06T07:44:52.133
Date updated
2025-08-06 07:55:50 UTC+0000
Release date
2026-08-06 07:55:50 UTC+0000
UTC Start
2025-08-06 07:44:52.133
UTC End
2025-08-06 07:45:54.143
MJD Start
60893.32282561
MJD End
60893.32354331833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.007861
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.485
Observation
ID
69261
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
51485
Name
HD 218396
RA
346.871625
DEC
21.13407
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 47.6670 47.7460 37.7000 37.7000
U1-U3 89.9320 90.0740 43.4000 43.4000
U1-U4 128.5980 128.6750 64.7940 64.7160
U2-U3 42.7730 42.8330 49.8000 49.8000
U2-U4 88.8660 88.8240 78.9470 78.8480
U3-U4 55.5330 55.4140 100.9430 100.8730
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 60893.32282561
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871625
DEC 21.13407
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 47.667
HIERARCH ESO ISS PBL12 END 47.746
HIERARCH ESO ISS PBLA12 START 37.7
HIERARCH ESO ISS PBLA12 END 37.7
HIERARCH ESO ISS PBL13 START 89.932
HIERARCH ESO ISS PBL13 END 90.074
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 128.598
HIERARCH ESO ISS PBL14 END 128.675
HIERARCH ESO ISS PBLA14 START 64.794
HIERARCH ESO ISS PBLA14 END 64.716
HIERARCH ESO ISS PBL23 START 42.773
HIERARCH ESO ISS PBL23 END 42.833
HIERARCH ESO ISS PBLA23 START 49.8
HIERARCH ESO ISS PBLA23 END 49.8
HIERARCH ESO ISS PBL24 START 88.866
HIERARCH ESO ISS PBL24 END 88.824
HIERARCH ESO ISS PBLA24 START 78.947
HIERARCH ESO ISS PBLA24 END 78.848
HIERARCH ESO ISS PBL34 START 55.533
HIERARCH ESO ISS PBL34 END 55.414
HIERARCH ESO ISS PBLA34 START 100.943
HIERARCH ESO ISS PBLA34 END 100.873
HIERARCH ESO ISS AMBI TAU0 START 0.007392
HIERARCH ESO ISS AMBI TAU0 END 0.00833
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.46