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70311 (1999 RG137)
Classification: Main-belt Asteroid          SPK-ID: 2070311
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664924850206637 3.1325e-08  
a 2.310958476217969 8.0642e-09 au
q 1.926201256732873 7.3502e-08 au
i 6.513956515125964 3.9967e-06 deg
node 327.3201974207116 3.2882e-05 deg
peri 118.7068436832109 3.5641e-05 deg
M 236.753949763313 1.3155e-05 deg
tp 2459439.795899208873
(2021-Aug-13.29589921)
4.7434e-05 TDB
period 1283.177216726077
3.51
6.7166e-06
1.839e-08
d
yr
n .2805536096709314 1.4685e-09 deg/d
Q 2.695715695703065 9.4069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      11201 days (30.67 yr)  
   first obs. used      1989-12-01  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46499  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:26:58  

Additional Information
 Earth MOID = .952357 au 
 Jupiter MOID = 2.51456 au 
 T_jup = 3.557 
[ 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 14.9   n/a MPO319890  
diameter diameter 3.093 km 0.477 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.243   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

70311 (1999 RG137)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RG137 = 2001 AA18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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