Exposure
ID
MATIS.2025-08-12T02:58:27.059_1
Header ID
MATIS.2025-08-12T02:58:27.059
Date updated
2025-08-12 03:05:52 UTC+0000
Release date
2025-08-12 02:58:27 UTC+0000
UTC Start
2025-08-12 02:58:27.059
UTC End
2025-08-12 02:59:28.721
MJD Start
60899.12392429
MJD End
60899.124637970555
Exposure time (s)
61.7
Validation level
1
Tau 0: Coherence time (s)
0.003293
Ambient temperature (°C)
14.82
Seeing (arcsec)
0.905
Observation
ID
69961
Category
calibrator
Program ID
115.2810.012
Program Title
THE DYNAMICAL INNER REGIONS OF PROTO-PLANETARY DISKS WITH VLTI-MATISSE
Program Type
GTO
PI / COI
VAN BOEKEL / MATTER / LOPEZ / JAFFE / HOGERHEIJDE / VAN HAASTERE / SCHEUCK / WEIGELT / VARGA / WATERS / AUGEREAU / HOFMANN / MILLOUR / PANTIN / WOLF / HENNING / SCHERTL / DANCHI / HOULLÉ / DOMINIK / BOLEY / KOKOULINA / PRIOLET / MA
Target
ID
50176
Name
HD 159881
RA
264.548643
DEC
-28.04686
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
SI_PHOT_LM_LOW
Instrument sub-mode
HYBRID
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 24.8760 24.8700 158.5000 158.7000
A0-D0 28.5200 28.4610 84.0000 84.1000
A0-C1 21.1980 21.1740 132.9300 133.1140
B2-D0 32.4520 32.4280 36.4000 36.5000
B2-C1 10.8110 10.8030 36.3460 36.4140
D0-C1 21.6410 21.6250 216.4080 216.4760
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.2810.012
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD
MJD-OBS 60899.12392429
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 159881
RA 264.548643
DEC -28.04686
HIERARCH ESO DET NAME MATISSE-LM
HIERARCH ESO INS FIL NAME LM
HIERARCH ESO INS FIL ID LM
HIERARCH ESO INS DIL NAME LOW
HIERARCH ESO INS DIL ID LOW
HIERARCH ESO INS MODE HYBRID
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 0.6
HIERARCH ESO DET SEQ1 PERIOD 0.717
HIERARCH ESO DET NDIT 86
HIERARCH ESO ISS PBL12 START 24.876
HIERARCH ESO ISS PBL12 END 24.87
HIERARCH ESO ISS PBLA12 START 158.5
HIERARCH ESO ISS PBLA12 END 158.7
HIERARCH ESO ISS PBL13 START 28.52
HIERARCH ESO ISS PBL13 END 28.461
HIERARCH ESO ISS PBLA13 START 84.0
HIERARCH ESO ISS PBLA13 END 84.1
HIERARCH ESO ISS PBL14 START 21.198
HIERARCH ESO ISS PBL14 END 21.174
HIERARCH ESO ISS PBLA14 START 132.93
HIERARCH ESO ISS PBLA14 END 133.114
HIERARCH ESO ISS PBL23 START 32.452
HIERARCH ESO ISS PBL23 END 32.428
HIERARCH ESO ISS PBLA23 START 36.4
HIERARCH ESO ISS PBLA23 END 36.5
HIERARCH ESO ISS PBL24 START 10.811
HIERARCH ESO ISS PBL24 END 10.803
HIERARCH ESO ISS PBLA24 START 36.346
HIERARCH ESO ISS PBLA24 END 36.414
HIERARCH ESO ISS PBL34 START 21.641
HIERARCH ESO ISS PBL34 END 21.625
HIERARCH ESO ISS PBLA34 START 216.408
HIERARCH ESO ISS PBLA34 END 216.476
HIERARCH ESO ISS AMBI TAU0 START 0.003293
HIERARCH ESO ISS AMBI TAU0 END 0.003293
HIERARCH ESO ISS AMBI TEMP 14.82
HIERARCH ESO ISS AMBI FWHM START 0.94
HIERARCH ESO ISS AMBI FWHM END 0.87