Exposure
ID
GRAVI.2021-01-31T03:23:56.029_1
Header ID
GRAVI.2021-01-31T03:23:56.029
Date updated
2021-01-31 03:40:41 UTC+0000
Release date
2022-01-31 03:40:41 UTC+0000
UTC Start
2021-01-31 03:23:56.029
UTC End
2021-01-31 03:28:56.029
MJD Start
59245.14162071
MJD End
59245.1450929322
Exposure time (s)
300.0
Validation level
1
Tau 0: Coherence time (s)
0.0080725
Ambient temperature (°C)
14.04
Seeing (arcsec)
0.475
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 48.2730 48.7090 38.6000 38.7000
U1-U3 91.2140 91.9770 43.9000 43.8000
U1-U4 129.4390 129.7130 63.6490 63.1310
U2-U3 43.3780 43.6840 49.8000 49.6000
U2-U4 88.1060 87.7240 77.0610 76.4240
U3-U4 53.3730 52.5870 98.9050 98.4560
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 59245.14162071
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 48.273
HIERARCH ESO ISS PBL12 END 48.709
HIERARCH ESO ISS PBLA12 START 38.6
HIERARCH ESO ISS PBLA12 END 38.7
HIERARCH ESO ISS PBL13 START 91.214
HIERARCH ESO ISS PBL13 END 91.977
HIERARCH ESO ISS PBLA13 START 43.9
HIERARCH ESO ISS PBLA13 END 43.8
HIERARCH ESO ISS PBL14 START 129.439
HIERARCH ESO ISS PBL14 END 129.713
HIERARCH ESO ISS PBLA14 START 63.649
HIERARCH ESO ISS PBLA14 END 63.131
HIERARCH ESO ISS PBL23 START 43.378
HIERARCH ESO ISS PBL23 END 43.684
HIERARCH ESO ISS PBLA23 START 49.8
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 88.106
HIERARCH ESO ISS PBL24 END 87.724
HIERARCH ESO ISS PBLA24 START 77.061
HIERARCH ESO ISS PBLA24 END 76.424
HIERARCH ESO ISS PBL34 START 53.373
HIERARCH ESO ISS PBL34 END 52.587
HIERARCH ESO ISS PBLA34 START 98.905
HIERARCH ESO ISS PBLA34 END 98.456
HIERARCH ESO ISS AMBI TAU0 START 0.007313
HIERARCH ESO ISS AMBI TAU0 END 0.008832
HIERARCH ESO ISS AMBI TEMP 14.04
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.49
HIERARCH ESO FT ROBJ NAME LB-1
HIERARCH ESO FT ROBJ ALPHA 061149.076
HIERARCH ESO FT ROBJ DELTA 224932.686