Exposure
ID
GRAVI.2021-01-31T03:31:56.050_1
Header ID
GRAVI.2021-01-31T03:31:56.050
Date updated
2021-01-31 03:45:28 UTC+0000
Release date
2022-01-31 03:45:28 UTC+0000
UTC Start
2021-01-31 03:31:56.050
UTC End
2021-01-31 03:36:56.050
MJD Start
59245.1471765
MJD End
59245.1506487222
Exposure time (s)
300.0
Validation level
1
Tau 0: Coherence time (s)
0.0063975
Ambient temperature (°C)
14.18
Seeing (arcsec)
0.535
Observation
ID
46630
Category
science
Program ID
106.219S.001
Program Title
ASTROMETRIC PRECISION-WEIGHING A NON-ACCRETING STELLAR-MASS BLACK HOLE
Program Type
Normal
PI / COI
RIVINIUS/ BAADE/ HEIDA/ HADRAVA/ TRISTRAM
Target
ID
35010
Name
Sky
RA
92.956655
DEC
22.82555
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 48.8590 49.2800 38.7000 38.7000
U1-U3 92.2370 92.9610 43.8000 43.7000
U1-U4 129.7940 129.9860 62.9480 62.4150
U2-U3 43.7870 44.0720 49.5000 49.2000
U2-U4 87.5790 87.1360 76.1990 75.5500
U3-U4 52.3060 51.4830 98.3000 97.8530
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 106.219S.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59245.1471765
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME LB-1
HIERARCH ESO INS SOBJ NAME Sky
RA 92.956655
DEC 22.82555
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 354.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 300
HIERARCH ESO ISS PBL12 START 48.859
HIERARCH ESO ISS PBL12 END 49.28
HIERARCH ESO ISS PBLA12 START 38.7
HIERARCH ESO ISS PBLA12 END 38.7
HIERARCH ESO ISS PBL13 START 92.237
HIERARCH ESO ISS PBL13 END 92.961
HIERARCH ESO ISS PBLA13 START 43.8
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 129.794
HIERARCH ESO ISS PBL14 END 129.986
HIERARCH ESO ISS PBLA14 START 62.948
HIERARCH ESO ISS PBLA14 END 62.415
HIERARCH ESO ISS PBL23 START 43.787
HIERARCH ESO ISS PBL23 END 44.072
HIERARCH ESO ISS PBLA23 START 49.5
HIERARCH ESO ISS PBLA23 END 49.2
HIERARCH ESO ISS PBL24 START 87.579
HIERARCH ESO ISS PBL24 END 87.136
HIERARCH ESO ISS PBLA24 START 76.199
HIERARCH ESO ISS PBLA24 END 75.55
HIERARCH ESO ISS PBL34 START 52.306
HIERARCH ESO ISS PBL34 END 51.483
HIERARCH ESO ISS PBLA34 START 98.3
HIERARCH ESO ISS PBLA34 END 97.853
HIERARCH ESO ISS AMBI TAU0 START 0.008888
HIERARCH ESO ISS AMBI TAU0 END 0.003907
HIERARCH ESO ISS AMBI TEMP 14.18
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.61
HIERARCH ESO FT ROBJ NAME LB-1
HIERARCH ESO FT ROBJ ALPHA 061149.076
HIERARCH ESO FT ROBJ DELTA 224932.686