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46882 (1998 RL9)
Classification: Main-belt Asteroid          SPK-ID: 2046882
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04745703839266743 4.0028e-08  
a 2.464126894819915 1.1783e-08 au
q 2.347186730168042 9.7258e-08 au
i 5.807621215262268 4.2989e-06 deg
node 161.6078074168366 4.0744e-05 deg
peri 158.4708189529936 7.5875e-05 deg
M 241.3226461568114 6.8442e-05 deg
tp 2459466.255919959161
(2021-Sep-08.75591996)
0.00027015 TDB
period 1412.840156571468
3.87
1.0134e-05
2.775e-08
d
yr
n .2548058945844308 1.8276e-09 deg/d
Q 2.581067059471788 1.2342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      9902 days (27.11 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:54  

Additional Information
 Earth MOID = 1.33562 au 
 Jupiter MOID = 2.55082 au 
 T_jup = 3.479 
[ 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 15.5   n/a MPO417141  
diameter diameter 2.267 km 0.425 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46882 (1998 RL9)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RL9 = 1993 FR61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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