Exposure
ID
MATIS.2025-08-07T08:44:26.727_1
Header ID
MATIS.2025-08-07T08:44:26.727
Date updated
2025-08-07 08:50:49 UTC+0000
Release date
2026-08-07 08:50:49 UTC+0000
UTC Start
2025-08-07 08:44:26.727
UTC End
2025-08-07 08:45:28.737
MJD Start
60894.36419823
MJD End
60894.364915938335
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.008067
Ambient temperature (°C)
13.31
Seeing (arcsec)
0.45
Observation
ID
69504
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
51624
Name
HD 218396
RA
346.871702
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 51.9030 51.9610 38.1000 38.1000
U1-U3 97.1570 97.2490 42.4000 42.4000
U1-U4 129.8790 129.8450 59.2940 59.1910
U2-U3 45.5600 45.5910 47.2000 47.2000
U2-U4 83.6030 83.4750 72.2480 72.1260
U3-U4 46.4890 46.3140 96.7200 96.6510
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 60894.36419823
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871702
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 51.903
HIERARCH ESO ISS PBL12 END 51.961
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 97.157
HIERARCH ESO ISS PBL13 END 97.249
HIERARCH ESO ISS PBLA13 START 42.4
HIERARCH ESO ISS PBLA13 END 42.4
HIERARCH ESO ISS PBL14 START 129.879
HIERARCH ESO ISS PBL14 END 129.845
HIERARCH ESO ISS PBLA14 START 59.294
HIERARCH ESO ISS PBLA14 END 59.191
HIERARCH ESO ISS PBL23 START 45.56
HIERARCH ESO ISS PBL23 END 45.591
HIERARCH ESO ISS PBLA23 START 47.2
HIERARCH ESO ISS PBLA23 END 47.2
HIERARCH ESO ISS PBL24 START 83.603
HIERARCH ESO ISS PBL24 END 83.475
HIERARCH ESO ISS PBLA24 START 72.248
HIERARCH ESO ISS PBLA24 END 72.126
HIERARCH ESO ISS PBL34 START 46.489
HIERARCH ESO ISS PBL34 END 46.314
HIERARCH ESO ISS PBLA34 START 96.72
HIERARCH ESO ISS PBLA34 END 96.651
HIERARCH ESO ISS AMBI TAU0 START 0.008067
HIERARCH ESO ISS AMBI TAU0 END 0.008067
HIERARCH ESO ISS AMBI TEMP 13.31
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45