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(2011 SP229)
Classification: Mars-crossing Asteroid          SPK-ID: 3581213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .511738965307169 2.3108e-06  
a 3.148730409735268 3.5334e-06 au
q 1.537402367826124 9e-06 au
i 23.66358503796478 0.00026601 deg
node 209.6147622933001 0.00026492 deg
peri 122.2106417525052 0.00026993 deg
M 258.10955462469 0.0007382 deg
tp 2459778.107208333703
(2022-Jul-17.60720833)
0.0051499 TDB
period 2040.80563426922
5.59
0.0034352
9.405e-06
d
yr
n .1764009242011478 2.9693e-07 deg/d
Q 4.760058451644413 5.3416e-06 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      1718 days (4.70 yr)  
   first obs. used      2011-09-30  
   last obs. used      2016-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .47746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:25:39  

Additional Information
 Earth MOID = .643518 au 
 Jupiter MOID = 1.62042 au 
 T_jup = 2.877 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO382694  

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