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213059 (1999 RG42)
Classification: Main-belt Asteroid          SPK-ID: 2213059
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873045768841021 5.6714e-08  
a 3.16956918587474 3.3117e-08 au
q 2.575894370609584 1.875e-07 au
i 5.390879938067777 6.5267e-06 deg
node 83.59766345639142 8.6873e-05 deg
peri 246.1315033067723 8.9428e-05 deg
M 270.9823329453169 2.4205e-05 deg
tp 2459510.150539697576
(2021-Oct-22.65053970)
0.00014264 TDB
period 2061.098660094294
5.64
3.2302e-05
8.844e-08
d
yr
n .1746641279091076 2.7374e-09 deg/d
Q 3.763244001139896 3.9319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:57:02  

Additional Information
 Earth MOID = 1.57084 au 
 Jupiter MOID = 1.61923 au 
 T_jup = 3.168 
[ 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 15.3   n/a MPO433392  
diameter diameter 4.839 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213059 (1999 RG42)          Discovered 1999-Sep-14 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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