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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478520163793665 3.851e-08  
a 2.581443552755865 1.1271e-08 au
q 2.199771918311395 1.0093e-07 au
i 4.993718298785245 3.9525e-06 deg
node 299.7236851611081 5.7147e-05 deg
peri 152.5801061141462 5.9972e-05 deg
M 97.63766568702081 1.8851e-05 deg
tp 2458589.627321415099
(2019-Apr-16.12732142)
7.809e-05 TDB
period 1514.929338486091
4.15
9.9218e-06
2.716e-08
d
yr
n .2376348459656591 1.5564e-09 deg/d
Q 2.963115187200335 1.2938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53236  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:55:19  

Additional Information
 Earth MOID = 1.21787 au 
 Jupiter MOID = 2.21337 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 16.2   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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