Exposure
ID
MATIS.2025-08-07T09:21:20.349_1
Header ID
MATIS.2025-08-07T09:21:20.349
Date updated
2025-08-07 09:31:09 UTC+0000
Release date
2026-08-07 09:31:09 UTC+0000
UTC Start
2025-08-07 09:21:20.349
UTC End
2025-08-07 09:22:22.359
MJD Start
60894.38981885
MJD End
60894.390536558334
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.0064615
Ambient temperature (°C)
13.59
Seeing (arcsec)
0.6699999999999999
Observation
ID
69503
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
51625
Name
HD 218396
RA
346.871701
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 53.7510 53.7960 37.4000 37.3000
U1-U3 99.9110 99.9730 40.8000 40.8000
U1-U4 127.6680 127.5790 55.3040 55.1820
U2-U3 46.3730 46.3870 44.9000 44.8000
U2-U4 78.3020 78.1340 67.5160 67.3710
U3-U4 39.7460 39.5440 94.2200 94.1480
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 60894.38981885
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871701
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 53.751
HIERARCH ESO ISS PBL12 END 53.796
HIERARCH ESO ISS PBLA12 START 37.4
HIERARCH ESO ISS PBLA12 END 37.3
HIERARCH ESO ISS PBL13 START 99.911
HIERARCH ESO ISS PBL13 END 99.973
HIERARCH ESO ISS PBLA13 START 40.8
HIERARCH ESO ISS PBLA13 END 40.8
HIERARCH ESO ISS PBL14 START 127.668
HIERARCH ESO ISS PBL14 END 127.579
HIERARCH ESO ISS PBLA14 START 55.304
HIERARCH ESO ISS PBLA14 END 55.182
HIERARCH ESO ISS PBL23 START 46.373
HIERARCH ESO ISS PBL23 END 46.387
HIERARCH ESO ISS PBLA23 START 44.9
HIERARCH ESO ISS PBLA23 END 44.8
HIERARCH ESO ISS PBL24 START 78.302
HIERARCH ESO ISS PBL24 END 78.134
HIERARCH ESO ISS PBLA24 START 67.516
HIERARCH ESO ISS PBLA24 END 67.371
HIERARCH ESO ISS PBL34 START 39.746
HIERARCH ESO ISS PBL34 END 39.544
HIERARCH ESO ISS PBLA34 START 94.22
HIERARCH ESO ISS PBLA34 END 94.148
HIERARCH ESO ISS AMBI TAU0 START 0.007244
HIERARCH ESO ISS AMBI TAU0 END 0.005679
HIERARCH ESO ISS AMBI TEMP 13.59
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.71