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102188 (1999 RD255)
Classification: Main-belt Asteroid          SPK-ID: 2102188
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .240713724222076 3.8963e-08  
a 2.284016827385298 8.4739e-09 au
q 1.734222630679492 8.7527e-08 au
i 7.61665886491183 3.5708e-06 deg
node 155.5413363059254 3.5167e-05 deg
peri 113.9692151918266 3.6056e-05 deg
M 102.9100784982739 8.6245e-06 deg
tp 2458840.085060605937
(2019-Dec-22.58506061)
2.9533e-05 TDB
period 1260.80341279731
3.45
7.0165e-06
1.921e-08
d
yr
n .2855322220307747 1.589e-09 deg/d
Q 2.833811024091104 1.0514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1995-03-24  
   last obs. used      2021-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56422  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:48  

Additional Information
 Earth MOID = .733619 au 
 Jupiter MOID = 2.31625 au 
 T_jup = 3.553 
[ 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 16.5   n/a MPO432548  

102188 (1999 RD255)          Discovered 1999-Sep-04 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RD255 = 1999 RK135 = 2002 GC8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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