Exposure
ID
GRAVI.2025-10-12T06:40:07.643_1
Header ID
GRAVI.2025-10-12T06:40:07.643
Date updated
2025-10-12 06:55:50 UTC+0000
Release date
2025-10-12 06:40:07 UTC+0000
UTC Start
2025-10-12 06:40:07.643
UTC End
2025-10-12 06:44:07.643
MJD Start
60960.27786624
MJD End
60960.28064401778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0143795
Ambient temperature (°C)
12.16
Seeing (arcsec)
0.62
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 48.1890 48.2610 142.7000 142.7000
A0-J2 99.1460 100.6620 87.2000 87.4000
A0-J6 150.5080 150.6550 5.4720 6.1560
B5-J2 82.1030 83.2960 58.3000 58.9000
B5-J6 188.7480 188.6500 355.4920 356.0310
J2-J6 167.9100 167.9440 329.7200 329.8360
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 60960.27786624
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 48.189
HIERARCH ESO ISS PBL12 END 48.261
HIERARCH ESO ISS PBLA12 START 142.7
HIERARCH ESO ISS PBLA12 END 142.7
HIERARCH ESO ISS PBL13 START 99.146
HIERARCH ESO ISS PBL13 END 100.662
HIERARCH ESO ISS PBLA13 START 87.2
HIERARCH ESO ISS PBLA13 END 87.4
HIERARCH ESO ISS PBL14 START 150.508
HIERARCH ESO ISS PBL14 END 150.655
HIERARCH ESO ISS PBLA14 START 5.472
HIERARCH ESO ISS PBLA14 END 6.156
HIERARCH ESO ISS PBL23 START 82.103
HIERARCH ESO ISS PBL23 END 83.296
HIERARCH ESO ISS PBLA23 START 58.3
HIERARCH ESO ISS PBLA23 END 58.9
HIERARCH ESO ISS PBL24 START 188.748
HIERARCH ESO ISS PBL24 END 188.65
HIERARCH ESO ISS PBLA24 START 355.492
HIERARCH ESO ISS PBLA24 END 356.031
HIERARCH ESO ISS PBL34 START 167.91
HIERARCH ESO ISS PBL34 END 167.944
HIERARCH ESO ISS PBLA34 START 329.72
HIERARCH ESO ISS PBLA34 END 329.836
HIERARCH ESO ISS AMBI TAU0 START 0.014774
HIERARCH ESO ISS AMBI TAU0 END 0.013985
HIERARCH ESO ISS AMBI TEMP 12.16
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.57