Exposure
ID
GRAVI.2025-10-12T06:49:25.666_1
Header ID
GRAVI.2025-10-12T06:49:25.666
Date updated
2025-10-12 07:00:46 UTC+0000
Release date
2025-10-12 06:49:25 UTC+0000
UTC Start
2025-10-12 06:49:25.666
UTC End
2025-10-12 06:53:25.666
MJD Start
60960.28432484
MJD End
60960.28710261778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.015960000000000002
Ambient temperature (°C)
12.21
Seeing (arcsec)
0.5
Observation
ID
70908
Category
calibrator
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
52616
Name
HD_41644
RA
91.516913
DEC
-7.31576
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 48.3390 48.3980 142.8000 142.8000
A0-J2 102.4060 103.8460 87.6000 87.8000
A0-J6 150.8490 151.0310 6.9590 7.6360
B5-J2 84.6870 85.8500 59.6000 60.2000
B5-J6 188.5500 188.4780 356.6690 357.2110
J2-J6 167.9670 167.9700 329.9840 330.1180
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28L4.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60960.28432484
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 41644
HIERARCH ESO INS SOBJ NAME HD_41644
RA 91.516913
DEC -7.31576
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 48.339
HIERARCH ESO ISS PBL12 END 48.398
HIERARCH ESO ISS PBLA12 START 142.8
HIERARCH ESO ISS PBLA12 END 142.8
HIERARCH ESO ISS PBL13 START 102.406
HIERARCH ESO ISS PBL13 END 103.846
HIERARCH ESO ISS PBLA13 START 87.6
HIERARCH ESO ISS PBLA13 END 87.8
HIERARCH ESO ISS PBL14 START 150.849
HIERARCH ESO ISS PBL14 END 151.031
HIERARCH ESO ISS PBLA14 START 6.959
HIERARCH ESO ISS PBLA14 END 7.636
HIERARCH ESO ISS PBL23 START 84.687
HIERARCH ESO ISS PBL23 END 85.85
HIERARCH ESO ISS PBLA23 START 59.6
HIERARCH ESO ISS PBLA23 END 60.2
HIERARCH ESO ISS PBL24 START 188.55
HIERARCH ESO ISS PBL24 END 188.478
HIERARCH ESO ISS PBLA24 START 356.669
HIERARCH ESO ISS PBLA24 END 357.211
HIERARCH ESO ISS PBL34 START 167.967
HIERARCH ESO ISS PBL34 END 167.97
HIERARCH ESO ISS PBLA34 START 329.984
HIERARCH ESO ISS PBLA34 END 330.118
HIERARCH ESO ISS AMBI TAU0 START 0.01524
HIERARCH ESO ISS AMBI TAU0 END 0.01668
HIERARCH ESO ISS AMBI TEMP 12.21
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.48