Exposure
ID
GRAVI.2025-11-27T06:12:38.404_1
Header ID
GRAVI.2025-11-27T06:12:38.404
Date updated
2025-11-27 06:26:32 UTC+0000
Release date
2025-11-27 06:12:38 UTC+0000
UTC Start
2025-11-27 06:12:38.404
UTC End
2025-11-27 06:16:38.404
MJD Start
61006.25877782
MJD End
61006.26155559778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0047385
Ambient temperature (°C)
14.74
Seeing (arcsec)
0.56
Observation
ID
71873
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
53354
Name
HD_41644
RA
91.516912
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 47.2430 47.1320 149.5000 149.9000
A0-J2 129.1730 129.2250 92.4000 92.5000
A0-J6 162.5510 162.9440 26.0710 26.4880
B5-J2 110.8850 111.1430 71.4000 71.6000
B5-J6 192.6530 192.9310 14.2600 14.7160
J2-J6 161.9210 161.6260 339.1520 339.5660
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 61006.25877782
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 41644
HIERARCH ESO INS SOBJ NAME HD_41644
RA 91.516912
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 47.243
HIERARCH ESO ISS PBL12 END 47.132
HIERARCH ESO ISS PBLA12 START 149.5
HIERARCH ESO ISS PBLA12 END 149.9
HIERARCH ESO ISS PBL13 START 129.173
HIERARCH ESO ISS PBL13 END 129.225
HIERARCH ESO ISS PBLA13 START 92.4
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 162.551
HIERARCH ESO ISS PBL14 END 162.944
HIERARCH ESO ISS PBLA14 START 26.071
HIERARCH ESO ISS PBLA14 END 26.488
HIERARCH ESO ISS PBL23 START 110.885
HIERARCH ESO ISS PBL23 END 111.143
HIERARCH ESO ISS PBLA23 START 71.4
HIERARCH ESO ISS PBLA23 END 71.6
HIERARCH ESO ISS PBL24 START 192.653
HIERARCH ESO ISS PBL24 END 192.931
HIERARCH ESO ISS PBLA24 START 14.26
HIERARCH ESO ISS PBLA24 END 14.716
HIERARCH ESO ISS PBL34 START 161.921
HIERARCH ESO ISS PBL34 END 161.626
HIERARCH ESO ISS PBLA34 START 339.152
HIERARCH ESO ISS PBLA34 END 339.566
HIERARCH ESO ISS AMBI TAU0 START 0.005373
HIERARCH ESO ISS AMBI TAU0 END 0.004104
HIERARCH ESO ISS AMBI TEMP 14.74
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.61