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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921277088644533 3.7328e-08  
a 2.689451967730559 1.3692e-08 au
q 2.172733723069491 1.0414e-07 au
i 2.817125532004911 4.8347e-06 deg
node 312.8685160700308 9.3481e-05 deg
peri 130.2355113448771 9.4479e-05 deg
M 10.20053581700183 1.4157e-05 deg
tp 2458954.852751990135
(2020-Apr-15.35275199)
6.3212e-05 TDB
period 1610.994714234677
4.41
1.2302e-05
3.368e-08
d
yr
n .2234644203479106 1.7065e-09 deg/d
Q 3.206170212391627 1.6323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      6731 days (18.43 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48825  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:30:35  

Additional Information
 Earth MOID = 1.19005 au 
 Jupiter MOID = 2.03218 au 
 T_jup = 3.344 
[ 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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