Exposure
ID
MATIS.2025-08-11T08:29:55.993_1
Header ID
MATIS.2025-08-11T08:29:55.993
Date updated
2025-08-11 08:40:42 UTC+0000
Release date
2026-08-11 08:40:42 UTC+0000
UTC Start
2025-08-11 08:29:55.993
UTC End
2025-08-11 08:30:58.003
MJD Start
60898.35412029
MJD End
60898.35483799833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.004375
Ambient temperature (°C)
15.0
Seeing (arcsec)
0.43
Observation
ID
69926
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
51892
Name
HD 218396
RA
346.871662
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 51.9700 52.0300 38.1000 38.1000
U1-U3 97.2630 97.3570 42.3000 42.3000
U1-U4 129.8390 129.8010 59.1750 59.0680
U2-U3 45.5960 45.6270 47.2000 47.1000
U2-U4 83.4550 83.3210 72.1070 71.9800
U3-U4 46.2860 46.1040 96.6410 96.5700
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 60898.35412029
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871662
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 51.97
HIERARCH ESO ISS PBL12 END 52.03
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 97.263
HIERARCH ESO ISS PBL13 END 97.357
HIERARCH ESO ISS PBLA13 START 42.3
HIERARCH ESO ISS PBLA13 END 42.3
HIERARCH ESO ISS PBL14 START 129.839
HIERARCH ESO ISS PBL14 END 129.801
HIERARCH ESO ISS PBLA14 START 59.175
HIERARCH ESO ISS PBLA14 END 59.068
HIERARCH ESO ISS PBL23 START 45.596
HIERARCH ESO ISS PBL23 END 45.627
HIERARCH ESO ISS PBLA23 START 47.2
HIERARCH ESO ISS PBLA23 END 47.1
HIERARCH ESO ISS PBL24 START 83.455
HIERARCH ESO ISS PBL24 END 83.321
HIERARCH ESO ISS PBLA24 START 72.107
HIERARCH ESO ISS PBLA24 END 71.98
HIERARCH ESO ISS PBL34 START 46.286
HIERARCH ESO ISS PBL34 END 46.104
HIERARCH ESO ISS PBLA34 START 96.641
HIERARCH ESO ISS PBLA34 END 96.57
HIERARCH ESO ISS AMBI TAU0 START 0.004375
HIERARCH ESO ISS AMBI TAU0 END 0.004375
HIERARCH ESO ISS AMBI TEMP 15.0
HIERARCH ESO ISS AMBI FWHM START 0.43
HIERARCH ESO ISS AMBI FWHM END 0.43