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5131 (1990 BG)
Classification: Apollo [NEO]          SPK-ID: 2005131
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5693190698521072 1.0021e-07  
a 1.486379162315604 7.2552e-09 AU
q .64015516017853 1.4862e-07 AU
i 36.42021687913304 1.3093e-05 deg
node 110.3998422648242 1.1694e-05 deg
peri 135.8132846747938 1.3784e-05 deg
M 233.1473027365472 1.6639e-05 deg
tp 2456633.733024733774
(2013-Dec-07.23302473)		 3.1382e-05 JED
period 661.9006983334289
1.81		 4.8462e-06
1.327e-08		 d
yr
n .5438882311295764 3.9822e-09 deg/d
Q 2.332603164452678 1.1386e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      12510 days (34.25 yr)  
   first obs. used      1978-12-06  
   last obs. used      2013-03-07  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .5545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 15:43:39  

Additional Information
 Earth MOID = .274182 AU 
 T_jup = 4.208 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a PDS3 (MPC 19845)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5131 (1990 BG)          Discovered 1990-Jan-21 by Helin and Roman at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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