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JPL Small-Body Database Browser
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91009 (1998 BQ47)
Classification: Main-belt Asteroid          SPK-ID: 2091009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1885617977565389 2.8516e-08  
a 2.556814780519677 1.3231e-08 au
q 2.074697188974397 7.3056e-08 au
i 5.724795850179963 3.7291e-06 deg
node 162.2460016717274 5.8153e-05 deg
peri 321.0824483199145 6.0455e-05 deg
M 166.3868732068418 1.8254e-05 deg
tp 2458310.317586497548
(2018-Jul-10.81758650)
7.4192e-05 TDB
period 1493.30090813117
4.09
1.1592e-05
3.174e-08
d
yr
n .2410766631425486 1.8713e-09 deg/d
Q 3.038932372064958 1.5726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      15541 days (42.55 yr)  
   first obs. used      1976-10-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49575  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:05  

Additional Information
 Earth MOID = 1.09371 au 
 Jupiter MOID = 2.04543 au 
 T_jup = 3.405 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO337937  
diameter diameter 2.951 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91009 (1998 BQ47)          Discovered 1998-Jan-26 by NEAT at Haleakala
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 BQ47 = 1976 UV17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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