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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 117 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5692992154757114 7.1954e-08  
a 1.486070065836738 5.4396e-09 AU
q .6400515432139443 1.07e-07 AU
i 36.42591486701458 9.8173e-06 deg
node 110.3966058303047 8.7298e-06 deg
peri 135.8288999563622 1.0556e-05 deg
M 90.72093089893501 8.7128e-06 deg
tp 2456633.751339718352
(2013-Dec-07.25133972)
1.5511e-05 JED
period 661.6942430657763
1.81
3.6331e-06
9.947e-09
d
yr
n .5440579297350996 2.9872e-09 deg/d
Q 2.332088588459532 8.5363e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      12510 days (34.25 yr)  
   first obs. used      1978-12-06  
   last obs. used      2013-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62626  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:09:06  

Additional Information
 Earth MOID = .275113 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 14.6 mag n/a MPO256901  
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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