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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426348912215113 5.6022e-08  
a 3.053871616392935 2.3132e-08 au
q 2.618282970584268 1.8117e-07 au
i 9.871643108241665 5.9411e-06 deg
node 144.2577939620567 2.1161e-05 deg
peri 228.0806318172892 2.7098e-05 deg
M 22.39076797296863 1.6819e-05 deg
tp 2459275.261353596910
(2021-Mar-01.76135360)
9.0793e-05 TDB
period 1949.281630616874
5.34
2.2148e-05
6.064e-08
d
yr
n .1846834209821562 2.0984e-09 deg/d
Q 3.489460262201603 2.6432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      7754 days (21.23 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:53:20  

Additional Information
 Earth MOID = 1.6287 au 
 Jupiter MOID = 2.00725 au 
 T_jup = 3.198 
[ 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 15.32   n/a E2021B10  
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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