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100038 (1991 RD13)
Classification: Main-belt Asteroid          SPK-ID: 2100038
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2733606948711785 5.2216e-08  
a 2.618859545914495 1.5677e-08 au
q 1.90296628067329 1.4067e-07 au
i 2.533756011823268 6.0768e-06 deg
node 299.0759022192314 0.00011908 deg
peri 64.0181707340643 0.00011962 deg
M 321.8374588941506 1.5059e-05 deg
tp 2459364.597332652466
(2021-May-30.09733265)		 6.5952e-05 TDB
period 1547.984962296787
4.24		 1.39e-05
3.806e-08		 d
yr
n .232560398691379 2.0883e-09 deg/d
Q 3.334752811155701 1.9963e-08 au
   Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      10532 days (28.84 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:08:25  

Additional Information
 Earth MOID = .900634 au 
 Jupiter MOID = 2.13968 au 
 T_jup = 3.350 
[ 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 15.65   n/a E2021B55  

100038 (1991 RD13)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1991 RD13 = 2004 RB201 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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