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100602 (1997 RD9)
Classification: Main-belt Asteroid          SPK-ID: 2100602
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248898014842804 5.5603e-08  
a 3.16839257890897 3.1132e-08 au
q 2.455853400813864 1.7931e-07 au
i 3.362434839129365 6.9548e-06 deg
node 316.2189235287609 0.00010717 deg
peri 131.4574059628879 0.00010836 deg
M 287.9467805817312 1.7295e-05 deg
tp 2459412.794743214646
(2021-Jul-17.29474321)
0.00010246 TDB
period 2059.951085539416
5.64
3.0361e-05
8.312e-08
d
yr
n .1747614312432719 2.5758e-09 deg/d
Q 3.880931757004075 3.8133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      324  
   data-arc span      8412 days (23.03 yr)  
   first obs. used      1997-09-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:36:32  

Additional Information
 Earth MOID = 1.47386 au 
 Jupiter MOID = 1.35884 au 
 T_jup = 3.160 
[ 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 MPO474881  
diameter diameter 3.695 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100602 (1997 RD9)          Discovered 1997-Sep-10 by Bickel, W. at Bergisch Gladbach
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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