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20517 Judycrystal (1999 RB35)
Classification: Main-belt Asteroid          SPK-ID: 2020517
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04152686870891463 7.4935e-08  
a 2.648926771784501 2.7095e-08 AU
q 2.538925137513077 1.8758e-07 AU
i 21.30907309906021 1.0598e-05 deg
node 291.0686248758832 2.6224e-05 deg
peri 136.3053847817987 0.00020965 deg
M 80.3925243179234 0.00020086 deg
tp 2456448.845223555172
(2013-Jun-05.34522356)
0.00087921 JED
period 1574.720045106407
4.31
2.4161e-05
6.615e-08
d
yr
n .2286120641689515 3.5076e-09 deg/d
Q 2.758928406055925 2.822e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      13794 days (37.77 yr)  
   first obs. used      1976-05-29  
   last obs. used      2014-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .70192  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:44:00  

Additional Information
 Earth MOID = 1.57481 AU 
 T_jup = 3.293 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO250415  

20517 Judycrystal           Discovered 1999 Sept. 11 by L. Robinson at Sunflower Observatory.
Judy Crystal (Andrews) Robinson (b. 1949) is the wife of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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