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102144 (1999 RA188)
Classification: Main-belt Asteroid          SPK-ID: 2102144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154509683699304 5.2224e-08  
a 2.465556283347412 1.5188e-08 au
q 2.084603961864572 1.3249e-07 au
i 6.873694376708868 5.6862e-06 deg
node 1.296179591478059 5.0532e-05 deg
peri 336.7215837807291 5.4917e-05 deg
M 187.0053214932812 2.5399e-05 deg
tp 2459880.018134829804
(2022-Oct-27.51813483)
0.00010322 TDB
period 1414.06967341616
3.87
1.3066e-05
3.577e-08
d
yr
n .2545843438748667 2.3524e-09 deg/d
Q 2.846508604830253 1.7535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      7858 days (21.51 yr)  
   first obs. used      1999-09-07  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:34  

Additional Information
 Earth MOID = 1.07612 au 
 Jupiter MOID = 2.54231 au 
 T_jup = 3.461 
[ 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 15.96   n/a E2021B55  

102144 (1999 RA188)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RA188 = 2003 SR129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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