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351278 (2004 SB20)
Classification: Apollo [NEO]          SPK-ID: 2351278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4132636484082573 1.585e-07  
a 1.18287319832784 4.6232e-09 au
q .6940347047825327 1.8892e-07 au
i 30.2736229677693 1.5404e-05 deg
node 30.91487432050814 1.0316e-05 deg
peri 209.3855323060604 2.6661e-05 deg
M 152.7975874202744 4.9037e-05 deg
tp 2458801.056580986418
(2019-Nov-13.55658099)
6.3773e-05 TDB
period 469.90029134035
1.29
2.7549e-06
7.543e-09
d
yr
n .7661199761616045 4.4915e-09 deg/d
Q 1.671711691873147 6.5338e-09 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      4856 days (13.30 yr)  
   first obs. used      2004-09-21  
   last obs. used      2018-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64757  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jan-07 06:23:20  

Additional Information
 Earth MOID = .269068 au 
 Jupiter MOID = 3.37713 au 
 T_jup = 5.149 
[ 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 18.8   n/a MPO277026  

351278 (2004 SB20)          Discovered 2004-Sep-21 by LINEAR at Socorro
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31

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