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JPL Small-Body Database Browser
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91563 (1999 RJ235)
Classification: Main-belt Asteroid          SPK-ID: 2091563
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434196059751756 6.1723e-08  
a 3.057001327368545 3.3021e-08 au
q 2.618567401531759 1.921e-07 au
i 9.868113844106155 6.4701e-06 deg
node 144.257147101398 3.3684e-05 deg
peri 227.8684809848835 3.8643e-05 deg
M 309.5010520873805 2.2344e-05 deg
tp 2459274.355644841653
(2021-Feb-28.85564484)
0.00012363 TDB
period 1952.278932891553
5.35
3.1632e-05
8.66e-08
d
yr
n .1843998795125029 2.9878e-09 deg/d
Q 3.49543525320533 3.7757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      1999-09-05  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56751  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:33:36  

Additional Information
 Earth MOID = 1.62965 au 
 Jupiter MOID = 1.99955 au 
 T_jup = 3.197 
[ 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 15.2   n/a MPO436411  
diameter diameter 5.647 km 0.490 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91563 (1999 RJ235)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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