Exposure
ID
MATIS.2025-08-11T06:45:39.045_1
Header ID
MATIS.2025-08-11T06:45:39.045
Date updated
2025-08-11 06:50:44 UTC+0000
Release date
2026-08-11 06:50:43 UTC+0000
UTC Start
2025-08-11 06:45:39.045
UTC End
2025-08-11 06:46:41.055
MJD Start
60898.28170191
MJD End
60898.28241961833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.003731
Ambient temperature (°C)
14.54
Seeing (arcsec)
0.435
Observation
ID
69856
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
51856
Name
HD 218396
RA
346.871608
DEC
21.13369
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 44.4980 44.5840 36.0000 36.1000
U1-U3 83.9790 84.1470 42.8000 42.9000
U1-U4 124.1990 124.3500 67.5170 67.4520
U2-U3 40.1470 40.2240 50.4000 50.4000
U2-U4 89.3310 89.3470 82.6000 82.5080
U3-U4 59.3340 59.2540 103.7190 103.6440
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 60898.28170191
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871608
DEC 21.13369
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 44.498
HIERARCH ESO ISS PBL12 END 44.584
HIERARCH ESO ISS PBLA12 START 36.0
HIERARCH ESO ISS PBLA12 END 36.1
HIERARCH ESO ISS PBL13 START 83.979
HIERARCH ESO ISS PBL13 END 84.147
HIERARCH ESO ISS PBLA13 START 42.8
HIERARCH ESO ISS PBLA13 END 42.9
HIERARCH ESO ISS PBL14 START 124.199
HIERARCH ESO ISS PBL14 END 124.35
HIERARCH ESO ISS PBLA14 START 67.517
HIERARCH ESO ISS PBLA14 END 67.452
HIERARCH ESO ISS PBL23 START 40.147
HIERARCH ESO ISS PBL23 END 40.224
HIERARCH ESO ISS PBLA23 START 50.4
HIERARCH ESO ISS PBLA23 END 50.4
HIERARCH ESO ISS PBL24 START 89.331
HIERARCH ESO ISS PBL24 END 89.347
HIERARCH ESO ISS PBLA24 START 82.6
HIERARCH ESO ISS PBLA24 END 82.508
HIERARCH ESO ISS PBL34 START 59.334
HIERARCH ESO ISS PBL34 END 59.254
HIERARCH ESO ISS PBLA34 START 103.719
HIERARCH ESO ISS PBLA34 END 103.644
HIERARCH ESO ISS AMBI TAU0 START 0.003695
HIERARCH ESO ISS AMBI TAU0 END 0.003767
HIERARCH ESO ISS AMBI TEMP 14.54
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.43