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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855561721221925 4.7185e-08  
a 2.272361504081951 7.7328e-09 au
q 1.850710801706676 1.0917e-07 au
i 4.03274803334083 4.8562e-06 deg
node 7.953547898522486 5.8483e-05 deg
peri 355.7397820934631 5.99e-05 deg
M 60.03307371119175 1.1198e-05 deg
tp 2458791.857565763217
(2019-Nov-04.35756576)
3.8869e-05 TDB
period 1251.164927629535
3.43
6.3865e-06
1.749e-08
d
yr
n .2877318505738954 1.4687e-09 deg/d
Q 2.694012206457226 9.1677e-09 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      7261 days (19.88 yr)  
   first obs. used      2000-01-04  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:34:25  

Additional Information
 Earth MOID = .848503 au 
 Jupiter MOID = 2.76211 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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