Exposure
ID
MATIS.2025-08-12T02:55:37.036_1
Header ID
MATIS.2025-08-12T02:55:37.036
Date updated
2025-08-12 03:05:52 UTC+0000
Release date
2025-08-12 02:55:37 UTC+0000
UTC Start
2025-08-12 02:55:37.036
UTC End
2025-08-12 02:56:38.698
MJD Start
60899.12195643
MJD End
60899.122670110555
Exposure time (s)
61.7
Validation level
1
Tau 0: Coherence time (s)
0.0033020000000000002
Ambient temperature (°C)
14.87
Seeing (arcsec)
0.79
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 24.8950 24.8880 158.1000 158.2000
A0-D0 28.6760 28.6190 83.7000 83.8000
A0-C1 21.2610 21.2370 132.4400 132.6220
B2-D0 32.5160 32.4930 36.2000 36.3000
B2-C1 10.8320 10.8240 36.1650 36.2330
D0-C1 21.6840 21.6680 216.2270 216.2950
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 60899.12195643
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 24.895
HIERARCH ESO ISS PBL12 END 24.888
HIERARCH ESO ISS PBLA12 START 158.1
HIERARCH ESO ISS PBLA12 END 158.2
HIERARCH ESO ISS PBL13 START 28.676
HIERARCH ESO ISS PBL13 END 28.619
HIERARCH ESO ISS PBLA13 START 83.7
HIERARCH ESO ISS PBLA13 END 83.8
HIERARCH ESO ISS PBL14 START 21.261
HIERARCH ESO ISS PBL14 END 21.237
HIERARCH ESO ISS PBLA14 START 132.44
HIERARCH ESO ISS PBLA14 END 132.622
HIERARCH ESO ISS PBL23 START 32.516
HIERARCH ESO ISS PBL23 END 32.493
HIERARCH ESO ISS PBLA23 START 36.2
HIERARCH ESO ISS PBLA23 END 36.3
HIERARCH ESO ISS PBL24 START 10.832
HIERARCH ESO ISS PBL24 END 10.824
HIERARCH ESO ISS PBLA24 START 36.165
HIERARCH ESO ISS PBLA24 END 36.233
HIERARCH ESO ISS PBL34 START 21.684
HIERARCH ESO ISS PBL34 END 21.668
HIERARCH ESO ISS PBLA34 START 216.227
HIERARCH ESO ISS PBLA34 END 216.295
HIERARCH ESO ISS AMBI TAU0 START 0.003308
HIERARCH ESO ISS AMBI TAU0 END 0.003296
HIERARCH ESO ISS AMBI TEMP 14.87
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79