Exposure
ID
GRAVI.2025-10-27T07:26:46.435_1
Header ID
GRAVI.2025-10-27T07:26:46.435
Date updated
2025-10-27 07:41:04 UTC+0000
Release date
2025-10-27 07:26:46 UTC+0000
UTC Start
2025-10-27 07:26:46.435
UTC End
2025-10-27 07:30:46.435
MJD Start
60975.31025967
MJD End
60975.31303744778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0037264999999999998
Ambient temperature (°C)
12.57
Seeing (arcsec)
0.85
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 90.0520 90.1940 113.0000 113.1000
A0-J2 125.5860 126.1290 90.9000 91.0000
A0-K0 120.8550 121.5650 68.8800 69.1460
G1-J2 54.1450 54.4530 52.0000 52.4000
G1-K0 84.2360 84.4540 20.7580 21.2790
J2-K0 47.2420 47.1840 344.2340 344.6240
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 60975.31025967
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 90.052
HIERARCH ESO ISS PBL12 END 90.194
HIERARCH ESO ISS PBLA12 START 113.0
HIERARCH ESO ISS PBLA12 END 113.1
HIERARCH ESO ISS PBL13 START 125.586
HIERARCH ESO ISS PBL13 END 126.129
HIERARCH ESO ISS PBLA13 START 90.9
HIERARCH ESO ISS PBLA13 END 91.0
HIERARCH ESO ISS PBL14 START 120.855
HIERARCH ESO ISS PBL14 END 121.565
HIERARCH ESO ISS PBLA14 START 68.88
HIERARCH ESO ISS PBLA14 END 69.146
HIERARCH ESO ISS PBL23 START 54.145
HIERARCH ESO ISS PBL23 END 54.453
HIERARCH ESO ISS PBLA23 START 52.0
HIERARCH ESO ISS PBLA23 END 52.4
HIERARCH ESO ISS PBL24 START 84.236
HIERARCH ESO ISS PBL24 END 84.454
HIERARCH ESO ISS PBLA24 START 20.758
HIERARCH ESO ISS PBLA24 END 21.279
HIERARCH ESO ISS PBL34 START 47.242
HIERARCH ESO ISS PBL34 END 47.184
HIERARCH ESO ISS PBLA34 START 344.234
HIERARCH ESO ISS PBLA34 END 344.624
HIERARCH ESO ISS AMBI TAU0 START 0.003647
HIERARCH ESO ISS AMBI TAU0 END 0.003806
HIERARCH ESO ISS AMBI TEMP 12.57
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.87