Exposure
ID
GRAVI.2025-11-03T06:56:55.630_1
Header ID
GRAVI.2025-11-03T06:56:55.630
Date updated
2025-11-03 07:10:49 UTC+0000
Release date
2025-11-03 06:56:55 UTC+0000
UTC Start
2025-11-03 06:56:55.630
UTC End
2025-11-03 07:00:55.630
MJD Start
60982.28953275
MJD End
60982.29231052778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.002473
Ambient temperature (°C)
10.2
Seeing (arcsec)
1.375
Observation
ID
71017
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
52701
Name
HD_41644
RA
91.515793
DEC
-7.31576
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.9630 90.1190 113.0000 113.1000
A0-J2 125.2690 125.8360 90.8000 90.9000
A0-K0 120.4490 121.1780 68.7250 68.9940
G1-J2 53.9720 54.2850 51.8000 52.2000
G1-K0 84.1180 84.3340 20.4610 20.9870
J2-K0 47.2750 47.2160 344.0160 344.4020
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 60982.28953275
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 41644
HIERARCH ESO INS SOBJ NAME HD_41644
RA 91.515793
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 89.963
HIERARCH ESO ISS PBL12 END 90.119
HIERARCH ESO ISS PBLA12 START 113.0
HIERARCH ESO ISS PBLA12 END 113.1
HIERARCH ESO ISS PBL13 START 125.269
HIERARCH ESO ISS PBL13 END 125.836
HIERARCH ESO ISS PBLA13 START 90.8
HIERARCH ESO ISS PBLA13 END 90.9
HIERARCH ESO ISS PBL14 START 120.449
HIERARCH ESO ISS PBL14 END 121.178
HIERARCH ESO ISS PBLA14 START 68.725
HIERARCH ESO ISS PBLA14 END 68.994
HIERARCH ESO ISS PBL23 START 53.972
HIERARCH ESO ISS PBL23 END 54.285
HIERARCH ESO ISS PBLA23 START 51.8
HIERARCH ESO ISS PBLA23 END 52.2
HIERARCH ESO ISS PBL24 START 84.118
HIERARCH ESO ISS PBL24 END 84.334
HIERARCH ESO ISS PBLA24 START 20.461
HIERARCH ESO ISS PBLA24 END 20.987
HIERARCH ESO ISS PBL34 START 47.275
HIERARCH ESO ISS PBL34 END 47.216
HIERARCH ESO ISS PBLA34 START 344.016
HIERARCH ESO ISS PBLA34 END 344.402
HIERARCH ESO ISS AMBI TAU0 START 0.002496
HIERARCH ESO ISS AMBI TAU0 END 0.00245
HIERARCH ESO ISS AMBI TEMP 10.2
HIERARCH ESO ISS AMBI FWHM START 1.43
HIERARCH ESO ISS AMBI FWHM END 1.32