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226785 (2004 RP159)
Classification: Main-belt Asteroid          SPK-ID: 2226785
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537991685527704 4.4705e-08  
a 2.83635105449489 2.045e-08 au
q 2.400122620589802 1.3315e-07 au
i 8.304874977948518 5.9328e-06 deg
node 288.5396229213906 3.0671e-05 deg
peri 76.26520771367169 3.5664e-05 deg
M 101.8898879049831 1.8561e-05 deg
tp 2458506.681922813659
(2019-Jan-23.18192281)		 8.8225e-05 TDB
period 1744.77086433607
4.78		 1.8869e-05
5.166e-08		 d
yr
n .2063308181942786 2.2314e-09 deg/d
Q 3.272579488399977 2.3595e-08 au
   Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7436 days (20.36 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:58:10  

Additional Information
 Earth MOID = 1.41442 au 
 Jupiter MOID = 2.26455 au 
 T_jup = 3.278 
[ 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 15.6   n/a MPO454629  
diameter diameter 2.745 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226785 (2004 RP159)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 RP159 = 2000 YB32 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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