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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477356243436899 3.7686e-08  
a 2.581463168182429 1.1074e-08 au
q 2.200089095310759 9.8483e-08 au
i 4.993714749451139 3.8062e-06 deg
node 299.7232479835046 5.7088e-05 deg
peri 152.5562343394859 5.9918e-05 deg
M 145.2041630876956 1.9004e-05 deg
tp 2458589.454016700796
(2019-Apr-15.95401670)
7.8106e-05 TDB
period 1514.946605593253
4.15
9.7482e-06
2.669e-08
d
yr
n .2376321374435663 1.5291e-09 deg/d
Q 2.9628372410541 1.271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      6842 days (18.73 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:01:21  

Additional Information
 Earth MOID = 1.21794 au 
 Jupiter MOID = 2.21357 au 
 T_jup = 3.404 
[ 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 16.15   n/a E2021B55  

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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