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408982 (2002 SP)
Classification: Aten [NEO]          SPK-ID: 2408982
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6004851792047363 5.5946e-07  
a .9045989990090095 7.5399e-09 au
q .3614007069806593 5.0445e-07 au
i 20.85129183055979 4.2727e-05 deg
node 350.8922092162463 9.8105e-06 deg
peri 169.4038850999435 3.492e-05 deg
M 324.330123667611 0.00010365 deg
tp 2459231.637352552814
(2021-Jan-17.13735255)		 9.0481e-05 TDB
period 314.2552784472285
0.86		 3.929e-06
1.076e-08		 d
yr
n 1.145565483510099 1.4323e-08 deg/d
Q 1.44779729103736 1.2067e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 4.053741579117258E-14 1.025E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
   Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      6601 days (18.07 yr)  
   first obs. used      2002-09-21  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .54289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-01 12:50:25  

Additional Information
 Earth MOID = .195157 au 
 Jupiter MOID = 3.53598 au 
 T_jup = 6.375 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 20.6   n/a MPO446720  

408982 (2002 SP)          Discovered 2002-Sep-20 by NEAT at Palomar
Reference: Last Updated: 2014-10-09

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