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JPL Small-Body Database Browser
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441829 (2009 SQ241)
Classification: Main-belt Asteroid          SPK-ID: 2441829
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038935039105123 8.0254e-08  
a 3.166195654784244 5.7013e-08 au
q 2.520628928664046 2.4906e-07 au
i 25.82134751261735 1.5653e-05 deg
node 221.6128556387687 1.8029e-05 deg
peri 138.40416921 4.5437e-05 deg
M 265.2977856388991 4.2186e-05 deg
tp 2459141.830731573587
(2020-Oct-19.33073157)
0.00025052 TDB
period 2057.808940173402
5.63
5.5582e-05
1.522e-07
d
yr
n .1749433550277338 4.7252e-09 deg/d
Q 3.811762380904443 6.8637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7554 days (20.68 yr)  
   first obs. used      1998-10-28  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54905  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:28  

Additional Information
 Earth MOID = 1.56792 au 
 Jupiter MOID = 1.8215 au 
 T_jup = 3.018 
[ 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 15.5   n/a MPO450445  
diameter diameter 4.603 km 1.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441829 (2009 SQ241)          Discovered 2009-Sep-18 by CSS at Catalina
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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