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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2735141802851661 5.9903e-08  
a 2.617814128077863 1.5733e-08 au
q 1.90180484269772 1.5903e-07 au
i 2.5339357685628 6.7612e-06 deg
node 299.0757132294787 0.00013011 deg
peri 64.12379339032786 0.00013064 deg
M 275.2326495974241 1.4753e-05 deg
tp 2459364.777833868463
(2021-May-30.27783387)
6.5988e-05 TDB
period 1547.05814880185
4.24
1.3947e-05
3.818e-08
d
yr
n .2326997212605158 2.0978e-09 deg/d
Q 3.333823413458006 2.0036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      10119 days (27.70 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:59:51  

Additional Information
 Earth MOID = .901095 au 
 Jupiter MOID = 2.13978 au 
 T_jup = 3.351 
[ 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 15.6   n/a MPO432529  

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

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