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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 140 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .569166904720279 7.0246e-08  
a 1.486091798420913 5.3409e-09 au
q .6402575293834892 1.0437e-07 au
i 36.42262737327278 9.1426e-06 deg
node 110.3920547866582 8.3969e-06 deg
peri 135.8160339841298 9.8014e-06 deg
M 165.9609574813718 1.0206e-05 deg
tp 2457295.450502523583
(2015-Sep-29.95050252)
1.7613e-05 JED
period 661.7087582411451
1.81
3.5672e-06
9.766e-09
d
yr
n .5440459953362231 2.9329e-09 deg/d
Q 2.331926067458337 8.3808e-09 au
  Orbit Determination Parameters
   # obs. used (total)      842  
   data-arc span      13535 days (37.06 yr)  
   first obs. used      1978-12-06  
   last obs. used      2015-12-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61201  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:11:12  

Additional Information
 Earth MOID = .274444 au 
 Jupiter MOID = 3.02453 au 
 T_jup = 4.209 
[ 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 14.7 mag n/a MPO319149  
rotation period rot_per 37.2 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2015) Minor Planet Bul. 42, 172-183.]
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
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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