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109668 (2001 RA22)
Classification: Main-belt Asteroid          SPK-ID: 2109668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919384979811226 3.7354e-08  
a 2.688639043939557 1.3731e-08 au
q 2.172585704232397 1.0413e-07 au
i 2.817135535050399 4.8654e-06 deg
node 312.8743902881981 9.3559e-05 deg
peri 130.2962298801239 9.4564e-05 deg
M 280.7308435383031 1.4002e-05 deg
tp 2458955.067491181115
(2020-Apr-15.56749118)
6.3677e-05 TDB
period 1610.264351518356
4.41
1.2336e-05
3.377e-08
d
yr
n .2235657764270491 1.7126e-09 deg/d
Q 3.204692383646716 1.6366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48586  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:17:06  

Additional Information
 Earth MOID = 1.18985 au 
 Jupiter MOID = 2.03382 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO453557  
diameter diameter 4.313 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109668 (2001 RA22)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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