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216476 (1999 SC22)
Classification: Main-belt Asteroid          SPK-ID: 2216476
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1644921442460814 4.782e-08  
a 2.693065302625673 2.103e-08 au
q 2.250077216402054 1.2724e-07 au
i 5.748866221035094 6.6835e-06 deg
node 334.9295533712452 5.6543e-05 deg
peri 76.30263879859666 6.1624e-05 deg
M 212.2269484253208 2.1766e-05 deg
tp 2459663.115353354558
(2022-Mar-24.61535335)
9.9547e-05 TDB
period 1614.242412034719
4.42
1.8908e-05
5.177e-08
d
yr
n .2230148317973058 2.6122e-09 deg/d
Q 3.136053388849292 2.4489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      9927 days (27.18 yr)  
   first obs. used      1992-02-01  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55441  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:32:44  

Additional Information
 Earth MOID = 1.26895 au 
 Jupiter MOID = 2.26943 au 
 T_jup = 3.344 
[ 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 16.1   n/a MPO437033  

216476 (1999 SC22)          Discovered 1999-Sep-23 by Ondrejov at Ondrejov
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 1999 SC22 = 2001 DX57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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