Exposure
ID
MATIS.2025-08-10T07:35:34.379_1
Header ID
MATIS.2025-08-10T07:35:34.379
Date updated
2025-08-10 07:45:30 UTC+0000
Release date
2026-08-10 07:45:30 UTC+0000
UTC Start
2025-08-10 07:35:34.379
UTC End
2025-08-10 07:36:36.389
MJD Start
60897.31637013
MJD End
60897.31708783833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.003521
Ambient temperature (°C)
12.08
Seeing (arcsec)
0.45499999999999996
Observation
ID
69769
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
51800
Name
HD 218396
RA
346.871472
DEC
21.13372
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 48.1500 48.2260 37.8000 37.9000
U1-U3 90.8010 90.9370 43.4000 43.4000
U1-U4 129.0450 129.1100 64.3050 64.2250
U2-U3 43.1360 43.1930 49.7000 49.6000
U2-U4 88.5800 88.5280 78.3270 78.2260
U3-U4 54.7790 54.6540 100.5090 100.4390
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 60897.31637013
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871472
DEC 21.13372
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 48.15
HIERARCH ESO ISS PBL12 END 48.226
HIERARCH ESO ISS PBLA12 START 37.8
HIERARCH ESO ISS PBLA12 END 37.9
HIERARCH ESO ISS PBL13 START 90.801
HIERARCH ESO ISS PBL13 END 90.937
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.045
HIERARCH ESO ISS PBL14 END 129.11
HIERARCH ESO ISS PBLA14 START 64.305
HIERARCH ESO ISS PBLA14 END 64.225
HIERARCH ESO ISS PBL23 START 43.136
HIERARCH ESO ISS PBL23 END 43.193
HIERARCH ESO ISS PBLA23 START 49.7
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 88.58
HIERARCH ESO ISS PBL24 END 88.528
HIERARCH ESO ISS PBLA24 START 78.327
HIERARCH ESO ISS PBLA24 END 78.226
HIERARCH ESO ISS PBL34 START 54.779
HIERARCH ESO ISS PBL34 END 54.654
HIERARCH ESO ISS PBLA34 START 100.509
HIERARCH ESO ISS PBLA34 END 100.439
HIERARCH ESO ISS AMBI TAU0 START 0.003521
HIERARCH ESO ISS AMBI TAU0 END 0.003521
HIERARCH ESO ISS AMBI TEMP 12.08
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.44