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102184 (1999 RX242)
Classification: Main-belt Asteroid          SPK-ID: 2102184
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378249607632967 2.8241e-08  
a 2.272712186060556 8.4849e-09 au
q 1.959475718190493 6.5606e-08 au
i 6.576115645259005 4.3676e-06 deg
node 70.88315931911859 2.757e-05 deg
peri 264.551253877181 3.1738e-05 deg
M 86.86929744946836 1.6044e-05 deg
tp 2458898.519502545858
(2020-Feb-19.01950255)
5.5403e-05 TDB
period 1251.454567670806
3.43
7.0083e-06
1.919e-08
d
yr
n .2876652571335675 1.611e-09 deg/d
Q 2.585948653930618 9.6544e-09 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      7797 days (21.35 yr)  
   first obs. used      1999-09-04  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:47  

Additional Information
 Earth MOID = .961048 au 
 Jupiter MOID = 2.76312 au 
 T_jup = 3.590 
[ 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 16.0   n/a MPO436479  

102184 (1999 RX242)          Discovered 1999-Sep-04 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RX242 = 1999 SJ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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