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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636728265408835 4.7876e-08  
a 2.695051053282675 2.1117e-08 au
q 2.253944429719914 1.2741e-07 au
i 5.750788210640241 6.6132e-06 deg
node 334.8939211222964 5.6213e-05 deg
peri 76.18424879900265 6.1098e-05 deg
M 256.9222723266553 2.1566e-05 deg
tp 2459663.212526728755
(2022-Mar-24.71252673)
9.834e-05 TDB
period 1616.028150622762
4.42
1.8993e-05
5.2e-08
d
yr
n .2227683966156582 2.6182e-09 deg/d
Q 3.136157676845436 2.4573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      9927 days (27.18 yr)  
   first obs. used      1992-02-01  
   last obs. used      2019-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56545  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:57  

Additional Information
 Earth MOID = 1.27193 au 
 Jupiter MOID = 2.27027 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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