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JPL Small-Body Database Browser
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59943 (1999 RH198)
Classification: Main-belt Asteroid          SPK-ID: 2059943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1655573060952951 6.2982e-08  
a 3.090927477343977 3.5506e-08 au
q 2.579201850858982 2.0622e-07 au
i 16.11067661146961 8.2608e-06 deg
node 301.1689193821784 1.929e-05 deg
peri 332.53427511 2.8287e-05 deg
M 265.185285132599 2.0747e-05 deg
tp 2459123.263061148455
(2020-Sep-30.76306115)
0.00011589 TDB
period 1984.868090112755
5.43
3.4201e-05
9.364e-08
d
yr
n .181372254304088 3.1252e-09 deg/d
Q 3.602653103828973 4.1385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      7208 days (19.73 yr)  
   first obs. used      1999-07-12  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56592  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:41:07  

Additional Information
 Earth MOID = 1.57279 au 
 Jupiter MOID = 1.64298 au 
 T_jup = 3.144 
[ 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 14.2   n/a MPO302387  
diameter diameter 4.035 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59943 (1999 RH198)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RH198 = 2000 YQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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