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JPL Small-Body Database Browser
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146485 (2001 RJ144)
Classification: Main-belt Asteroid          SPK-ID: 2146485
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480183631647752 5.2003e-08  
a 2.58219252906631 1.4096e-08 au
q 2.199980617537604 1.4032e-07 au
i 4.993387107455462 4.9589e-06 deg
node 299.7216476127639 6.009e-05 deg
peri 152.6771529991727 6.2834e-05 deg
M 2.507228686143294 1.9017e-05 deg
tp 2458589.944645962304
(2019-Apr-16.44464596)
8.0019e-05 TDB
period 1515.58869542757
4.15
1.241e-05
3.398e-08
d
yr
n .2375314629134515 1.945e-09 deg/d
Q 2.964404440595017 1.6182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      6378 days (17.46 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54095  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:43:39  

Additional Information
 Earth MOID = 1.21813 au 
 Jupiter MOID = 2.21284 au 
 T_jup = 3.403 
[ 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 16.2   n/a MPO459679  

146485 (2001 RJ144)          Discovered 2001-Sep-08 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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