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JPL Small-Body Database Browser
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243598 (1998 SS99)
Classification: Main-belt Asteroid          SPK-ID: 2243598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1771291167712203 6.5331e-08  
a 2.646325019204119 2.1242e-08 au
q 2.177583805862911 1.7363e-07 au
i 12.75031132494782 6.6485e-06 deg
node 202.6678248527015 2.3422e-05 deg
peri 160.9821683049908 2.7841e-05 deg
M 286.6024907954 1.432e-05 deg
tp 2458921.084132100410
(2020-Mar-12.58413210)
6.3953e-05 TDB
period 1572.400600603957
4.30
1.8933e-05
5.184e-08
d
yr
n .2289492892979845 2.7567e-09 deg/d
Q 3.115066232545328 2.5005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      1998-09-25  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58989  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:55  

Additional Information
 Earth MOID = 1.17964 au 
 Jupiter MOID = 2.3663 au 
 T_jup = 3.335 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO440239  

243598 (1998 SS99)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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