Exposure
ID
MATIS.2025-08-10T07:23:50.773_1
Header ID
MATIS.2025-08-10T07:23:50.773
Date updated
2025-08-10 07:35:43 UTC+0000
Release date
2026-08-10 07:35:43 UTC+0000
UTC Start
2025-08-10 07:23:50.773
UTC End
2025-08-10 07:24:52.783
MJD Start
60897.30822654
MJD End
60897.30894424833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.004359
Ambient temperature (°C)
12.13
Seeing (arcsec)
0.495
Observation
ID
69758
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
51795
Name
HD 218396
RA
346.871472
DEC
21.13373
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 47.2610 47.3410 37.5000 37.6000
U1-U3 89.1930 89.3380 43.4000 43.4000
U1-U4 128.1720 128.2590 65.1880 65.1120
U2-U3 42.4590 42.5210 50.0000 50.0000
U2-U4 89.0590 89.0250 79.4540 79.3560
U3-U4 56.1280 56.0140 101.3070 101.2360
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 60897.30822654
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871472
DEC 21.13373
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 47.261
HIERARCH ESO ISS PBL12 END 47.341
HIERARCH ESO ISS PBLA12 START 37.5
HIERARCH ESO ISS PBLA12 END 37.6
HIERARCH ESO ISS PBL13 START 89.193
HIERARCH ESO ISS PBL13 END 89.338
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 128.172
HIERARCH ESO ISS PBL14 END 128.259
HIERARCH ESO ISS PBLA14 START 65.188
HIERARCH ESO ISS PBLA14 END 65.112
HIERARCH ESO ISS PBL23 START 42.459
HIERARCH ESO ISS PBL23 END 42.521
HIERARCH ESO ISS PBLA23 START 50.0
HIERARCH ESO ISS PBLA23 END 50.0
HIERARCH ESO ISS PBL24 START 89.059
HIERARCH ESO ISS PBL24 END 89.025
HIERARCH ESO ISS PBLA24 START 79.454
HIERARCH ESO ISS PBLA24 END 79.356
HIERARCH ESO ISS PBL34 START 56.128
HIERARCH ESO ISS PBL34 END 56.014
HIERARCH ESO ISS PBLA34 START 101.307
HIERARCH ESO ISS PBLA34 END 101.236
HIERARCH ESO ISS AMBI TAU0 START 0.005009
HIERARCH ESO ISS AMBI TAU0 END 0.003709
HIERARCH ESO ISS AMBI TEMP 12.13
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.51