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40202 (1998 SN26)
Classification: Main-belt Asteroid          SPK-ID: 2040202
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04941458002958042 4.9521e-08  
a 3.118108644964499 2.0833e-08 au
q 2.964028615786975 1.4658e-07 au
i 5.11551719915848 5.1302e-06 deg
node 319.5626185966858 3.7279e-05 deg
peri 329.9543568941539 5.742e-05 deg
M 39.0771250415053 4.3482e-05 deg
tp 2458782.199165606422
(2019-Oct-25.69916561)
0.00024279 TDB
period 2011.107528975489
5.51
2.0155e-05
5.518e-08
d
yr
n .1790058437021482 1.794e-09 deg/d
Q 3.272188674142024 2.1863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1318  
   data-arc span      8111 days (22.21 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:17:36  

Additional Information
 Earth MOID = 1.94925 au 
 Jupiter MOID = 1.85993 au 
 T_jup = 3.209 
[ 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 13.9   n/a MPO400391  

40202 (1998 SN26)          Discovered 1998-Sep-24 by Klet at Klet
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SN26 = 2000 AY18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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