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362202 (2009 HW28)
Classification: Main-belt Asteroid          SPK-ID: 2362202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2420919592843192 1.3759e-07  
a 2.558795099923868 2.7338e-08 au
q 1.939331380776184 3.6911e-07 au
i 5.3481341324041 7.9743e-06 deg
node 67.75742781841372 0.00010056 deg
peri 177.8673303764923 0.00010353 deg
M 293.1467952593415 3.1366e-05 deg
tp 2459478.133215171567
(2021-Sep-20.63321517)
0.00013402 TDB
period 1495.036144482362
4.09
2.396e-05
6.56e-08
d
yr
n .2407968538611122 3.859e-09 deg/d
Q 3.178258819071553 3.3957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      5308 days (14.53 yr)  
   first obs. used      2006-10-03  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:18:06  

Additional Information
 Earth MOID = .924462 au 
 Jupiter MOID = 1.85149 au 
 T_jup = 3.388 
[ 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 17.31   n/a MPCxxxxx  

362202 (2009 HW28)          Discovered 2009-Apr-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-04-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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