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226135 (2002 RQ87)
Classification: Main-belt Asteroid          SPK-ID: 2226135
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855233864637235 4.7255e-08  
a 2.272434114492611 7.801e-09 au
q 1.850844442056249 1.0935e-07 au
i 4.032770303883598 4.8641e-06 deg
node 7.961988333492732 5.9441e-05 deg
peri 355.6614481218377 6.0835e-05 deg
M 304.9924937418971 1.1257e-05 deg
tp 2458791.685448226858
(2019-Nov-04.18544823)
3.9159e-05 TDB
period 1251.224897175376
3.43
6.443e-06
1.764e-08
d
yr
n .2877180599688315 1.4816e-09 deg/d
Q 2.694023786928974 9.2483e-09 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7240 days (19.82 yr)  
   first obs. used      2000-01-04  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51964  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:49:44  

Additional Information
 Earth MOID = .847751 au 
 Jupiter MOID = 2.7584 au 
 T_jup = 3.585 
[ 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 16.9   n/a MPO440180  
diameter diameter 2.301 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226135 (2002 RQ87)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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