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441525 (2008 SK220)
Classification: Outer Main-belt Asteroid          SPK-ID: 2441525
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .241817589065032 6.3173e-08  
a 3.828384586881476 7.3896e-08 au
q 2.902613856068069 2.3154e-07 au
i 8.219327815940616 8.0348e-06 deg
node 205.9109658401971 5.0338e-05 deg
peri 195.7562914372276 5.3646e-05 deg
M 181.7008738738961 1.9017e-05 deg
tp 2460355.591057698022
(2024-Feb-15.09105770)
0.00017137 TDB
period 2736.035735959039
7.49
7.9217e-05
2.169e-07
d
yr
n .1315772287871131 3.8096e-09 deg/d
Q 4.754155317694884 9.1765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      6766 days (18.52 yr)  
   first obs. used      2001-10-18  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53173  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:03  

Additional Information
 Earth MOID = 1.91203 au 
 Jupiter MOID = .681452 au 
 T_jup = 3.007 
[ 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 15.3   n/a MPO437716  
diameter diameter 7.031 km 0.708 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.027   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

441525 (2008 SK220)          Discovered 2008-Sep-30 by OAM at La Sagra
Reference: Last Updated: 2015-09-02

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