Exposure
ID
MATIS.2025-08-11T08:13:34.232_1
Header ID
MATIS.2025-08-11T08:13:34.232
Date updated
2025-08-11 08:20:44 UTC+0000
Release date
2026-08-11 08:20:44 UTC+0000
UTC Start
2025-08-11 08:13:34.232
UTC End
2025-08-11 08:14:36.242
MJD Start
60898.34275732
MJD End
60898.343475028334
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.00371
Ambient temperature (°C)
14.8
Seeing (arcsec)
0.46499999999999997
Observation
ID
69924
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
51891
Name
HD 218396
RA
346.87166
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 51.0060 51.0720 38.2000 38.2000
U1-U3 95.7140 95.8210 42.8000 42.8000
U1-U4 130.1890 130.1800 60.7520 60.6530
U2-U3 45.0570 45.0960 48.0000 48.0000
U2-U4 85.3340 85.2210 73.9830 73.8650
U3-U4 48.9590 48.7910 97.7230 97.6530
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 60898.34275732
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.87166
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 51.006
HIERARCH ESO ISS PBL12 END 51.072
HIERARCH ESO ISS PBLA12 START 38.2
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 95.714
HIERARCH ESO ISS PBL13 END 95.821
HIERARCH ESO ISS PBLA13 START 42.8
HIERARCH ESO ISS PBLA13 END 42.8
HIERARCH ESO ISS PBL14 START 130.189
HIERARCH ESO ISS PBL14 END 130.18
HIERARCH ESO ISS PBLA14 START 60.752
HIERARCH ESO ISS PBLA14 END 60.653
HIERARCH ESO ISS PBL23 START 45.057
HIERARCH ESO ISS PBL23 END 45.096
HIERARCH ESO ISS PBLA23 START 48.0
HIERARCH ESO ISS PBLA23 END 48.0
HIERARCH ESO ISS PBL24 START 85.334
HIERARCH ESO ISS PBL24 END 85.221
HIERARCH ESO ISS PBLA24 START 73.983
HIERARCH ESO ISS PBLA24 END 73.865
HIERARCH ESO ISS PBL34 START 48.959
HIERARCH ESO ISS PBL34 END 48.791
HIERARCH ESO ISS PBLA34 START 97.723
HIERARCH ESO ISS PBLA34 END 97.653
HIERARCH ESO ISS AMBI TAU0 START 0.003576
HIERARCH ESO ISS AMBI TAU0 END 0.003844
HIERARCH ESO ISS AMBI TEMP 14.8
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.48