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109642 (2001 RA1)
Classification: Main-belt Asteroid          SPK-ID: 2109642
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026535340878482 6.8929e-08  
a 2.416407134376533 1.2044e-08 au
q 1.926713688800039 1.7122e-07 au
i .3214887804522286 5.9951e-06 deg
node 298.7906489971217 0.0011568 deg
peri 68.06369919969102 0.0011569 deg
M 232.6561210554945 1.7381e-05 deg
tp 2459085.821090268434
(2020-Aug-24.32109027)
6.8925e-05 TDB
period 1371.998355514005
3.76
1.0257e-05
2.808e-08
d
yr
n .26239098505707 1.9617e-09 deg/d
Q 2.906100579953028 1.4484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      7392 days (20.24 yr)  
   first obs. used      1999-01-08  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65041  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:32:32  

Additional Information
 Earth MOID = .924546 au 
 Jupiter MOID = 2.5532 au 
 T_jup = 3.488 
[ 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 16.7   n/a MPO193875  

109642 (2001 RA1)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 RA1 = 1999 AP26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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