Exposure
ID
GRAVI.2025-10-12T06:18:16.587_1
Header ID
GRAVI.2025-10-12T06:18:16.587
Date updated
2025-10-12 06:31:04 UTC+0000
Release date
2026-10-12 06:31:04 UTC+0000
UTC Start
2025-10-12 06:18:16.587
UTC End
2025-10-12 06:22:16.587
MJD Start
60960.26269198
MJD End
60960.26546975778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.011202
Ambient temperature (°C)
12.3
Seeing (arcsec)
0.665
Observation
ID
70907
Category
science
Program ID
116.28L4.001
Program Title
DETERMINING PRECISE DYNAMICAL MASSES OF A UNIQUE BE + SDO SYSTEM TO CALIBRATE THE PHYSICS OF BINARY MASS TRANSFER
Program Type
Normal
PI / COI
KLEMENT / RIVINIUS / DE MINK / LECHIEN
Target
ID
52615
Name
HD_41335
RA
91.05511
DEC
-6.70893
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 47.8440 47.9400 142.8000 142.8000
A0-J2 91.5270 93.2000 86.9000 87.1000
A0-J6 149.1990 149.2670 2.2350 2.9340
B5-J2 75.8630 77.1170 55.4000 56.2000
B5-J6 188.6190 188.4620 352.9660 353.4950
J2-J6 167.6480 167.7390 329.3120 329.3850
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28L4.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60960.26269198
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 41335
HIERARCH ESO INS SOBJ NAME HD_41335
RA 91.05511
DEC -6.70893
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 47.844
HIERARCH ESO ISS PBL12 END 47.94
HIERARCH ESO ISS PBLA12 START 142.8
HIERARCH ESO ISS PBLA12 END 142.8
HIERARCH ESO ISS PBL13 START 91.527
HIERARCH ESO ISS PBL13 END 93.2
HIERARCH ESO ISS PBLA13 START 86.9
HIERARCH ESO ISS PBLA13 END 87.1
HIERARCH ESO ISS PBL14 START 149.199
HIERARCH ESO ISS PBL14 END 149.267
HIERARCH ESO ISS PBLA14 START 2.235
HIERARCH ESO ISS PBLA14 END 2.934
HIERARCH ESO ISS PBL23 START 75.863
HIERARCH ESO ISS PBL23 END 77.117
HIERARCH ESO ISS PBLA23 START 55.4
HIERARCH ESO ISS PBLA23 END 56.2
HIERARCH ESO ISS PBL24 START 188.619
HIERARCH ESO ISS PBL24 END 188.462
HIERARCH ESO ISS PBLA24 START 352.966
HIERARCH ESO ISS PBLA24 END 353.495
HIERARCH ESO ISS PBL34 START 167.648
HIERARCH ESO ISS PBL34 END 167.739
HIERARCH ESO ISS PBLA34 START 329.312
HIERARCH ESO ISS PBLA34 END 329.385
HIERARCH ESO ISS AMBI TAU0 START 0.007197
HIERARCH ESO ISS AMBI TAU0 END 0.015207
HIERARCH ESO ISS AMBI TEMP 12.3
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.69