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70420 (1999 SM13)
Classification: Main-belt Asteroid          SPK-ID: 2070420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401202866750589 4.721e-08  
a 2.530894378884503 8.6362e-09 au
q 2.176264732970911 1.2e-07 au
i 7.279418669546324 5.484e-06 deg
node 187.4738918067813 2.6749e-05 deg
peri 194.350565666881 3.1473e-05 deg
M 33.77886535195508 1.6168e-05 deg
tp 2458862.508601759054
(2020-Jan-14.00860176)
6.5916e-05 TDB
period 1470.650445156683
4.03
7.5275e-06
2.061e-08
d
yr
n .2447896447354936 1.253e-09 deg/d
Q 2.885524024798094 9.8463e-09 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      10634 days (29.11 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:37  

Additional Information
 Earth MOID = 1.17962 au 
 Jupiter MOID = 2.5717 au 
 T_jup = 3.426 
[ 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 15.6   n/a MPO449444  

70420 (1999 SM13)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 SM13 = 1999 RA89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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