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102005 (1999 RS81)
Classification: Main-belt Asteroid          SPK-ID: 2102005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1834423241086854 5.0875e-08  
a 2.205621813671665 1.0455e-08 au
q 1.801017422066922 1.1125e-07 au
i 7.035796637082634 5.6041e-06 deg
node 335.9148763706152 4.5098e-05 deg
peri 350.4729099300731 4.7667e-05 deg
M 194.209844373862 1.8328e-05 deg
tp 2459751.499541896753
(2022-Jun-20.99954190)
6.3311e-05 TDB
period 1196.451226755216
3.28
8.5067e-06
2.329e-08
d
yr
n .3008898247998979 2.1393e-09 deg/d
Q 2.61022620527641 1.2372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      8331 days (22.81 yr)  
   first obs. used      1998-03-01  
   last obs. used      2020-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:18  

Additional Information
 Earth MOID = .788016 au 
 Jupiter MOID = 2.72572 au 
 T_jup = 3.630 
[ 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 16.2   n/a MPO439697  
diameter diameter 1.582 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102005 (1999 RS81)          Discovered 1999-Sep-07 by LINEAR at Socorro
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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