Exposure
ID
MATIS.2025-08-07T07:49:01.416_1
Header ID
MATIS.2025-08-07T07:49:01.416
Date updated
2025-08-07 08:00:52 UTC+0000
Release date
2026-08-07 08:00:52 UTC+0000
UTC Start
2025-08-07 07:49:01.416
UTC End
2025-08-07 07:50:03.426
MJD Start
60894.32571083
MJD End
60894.326428538334
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.008457
Ambient temperature (°C)
13.41
Seeing (arcsec)
0.745
Observation
ID
69472
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
51609
Name
HD 218396
RA
346.871678
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 48.2710 48.3500 37.9000 37.9000
U1-U3 91.0190 91.1590 43.4000 43.4000
U1-U4 129.1470 129.2110 64.1770 64.0940
U2-U3 43.2260 43.2840 49.6000 49.6000
U2-U4 88.4970 88.4410 78.1660 78.0610
U3-U4 54.5790 54.4490 100.3970 100.3250
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 60894.32571083
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871678
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 48.271
HIERARCH ESO ISS PBL12 END 48.35
HIERARCH ESO ISS PBLA12 START 37.9
HIERARCH ESO ISS PBLA12 END 37.9
HIERARCH ESO ISS PBL13 START 91.019
HIERARCH ESO ISS PBL13 END 91.159
HIERARCH ESO ISS PBLA13 START 43.4
HIERARCH ESO ISS PBLA13 END 43.4
HIERARCH ESO ISS PBL14 START 129.147
HIERARCH ESO ISS PBL14 END 129.211
HIERARCH ESO ISS PBLA14 START 64.177
HIERARCH ESO ISS PBLA14 END 64.094
HIERARCH ESO ISS PBL23 START 43.226
HIERARCH ESO ISS PBL23 END 43.284
HIERARCH ESO ISS PBLA23 START 49.6
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 88.497
HIERARCH ESO ISS PBL24 END 88.441
HIERARCH ESO ISS PBLA24 START 78.166
HIERARCH ESO ISS PBLA24 END 78.061
HIERARCH ESO ISS PBL34 START 54.579
HIERARCH ESO ISS PBL34 END 54.449
HIERARCH ESO ISS PBLA34 START 100.397
HIERARCH ESO ISS PBLA34 END 100.325
HIERARCH ESO ISS AMBI TAU0 START 0.008752
HIERARCH ESO ISS AMBI TAU0 END 0.008162
HIERARCH ESO ISS AMBI TEMP 13.41
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.71