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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401202494129254 4.8523e-08  
a 2.530894379759097 8.7051e-09 au
q 2.176264828029482 1.2352e-07 au
i 7.279424189464422 5.6084e-06 deg
node 187.4738840324708 2.6798e-05 deg
peri 194.3505518153992 3.1525e-05 deg
M 33.77887952520312 1.6244e-05 deg
tp 2458862.508543787822
(2020-Jan-14.00854379)		 6.6221e-05 TDB
period 1470.650445918997
4.03		 7.5875e-06
2.077e-08		 d
yr
n .2447896446086066 1.2629e-09 deg/d
Q 2.885523931488713 9.9248e-09 au
   Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50926  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:14:19  

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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