Exposure
ID
MATIS.2025-08-07T08:06:26.075_1
Header ID
MATIS.2025-08-07T08:06:26.075
Date updated
2025-08-07 08:15:40 UTC+0000
Release date
2026-08-07 08:15:40 UTC+0000
UTC Start
2025-08-07 08:06:26.075
UTC End
2025-08-07 08:07:28.085
MJD Start
60894.33780179
MJD End
60894.338519498335
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.007694
Ambient temperature (°C)
13.64
Seeing (arcsec)
0.63
Observation
ID
69490
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
51618
Name
HD 218396
RA
346.871692
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 49.5150 49.5860 38.1000 38.2000
U1-U3 93.2020 93.3250 43.3000 43.3000
U1-U4 129.9410 129.9710 62.7680 62.6810
U2-U3 44.1070 44.1550 49.0000 49.0000
U2-U4 87.3930 87.3140 76.4190 76.3130
U3-U4 52.3190 52.1760 99.2320 99.1630
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 60894.33780179
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871692
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 49.515
HIERARCH ESO ISS PBL12 END 49.586
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.2
HIERARCH ESO ISS PBL13 START 93.202
HIERARCH ESO ISS PBL13 END 93.325
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 129.941
HIERARCH ESO ISS PBL14 END 129.971
HIERARCH ESO ISS PBLA14 START 62.768
HIERARCH ESO ISS PBLA14 END 62.681
HIERARCH ESO ISS PBL23 START 44.107
HIERARCH ESO ISS PBL23 END 44.155
HIERARCH ESO ISS PBLA23 START 49.0
HIERARCH ESO ISS PBLA23 END 49.0
HIERARCH ESO ISS PBL24 START 87.393
HIERARCH ESO ISS PBL24 END 87.314
HIERARCH ESO ISS PBLA24 START 76.419
HIERARCH ESO ISS PBLA24 END 76.313
HIERARCH ESO ISS PBL34 START 52.319
HIERARCH ESO ISS PBL34 END 52.176
HIERARCH ESO ISS PBLA34 START 99.232
HIERARCH ESO ISS PBLA34 END 99.163
HIERARCH ESO ISS AMBI TAU0 START 0.007694
HIERARCH ESO ISS AMBI TAU0 END 0.007694
HIERARCH ESO ISS AMBI TEMP 13.64
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.62