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70245 (1999 RW81)
Classification: Main-belt Asteroid          SPK-ID: 2070245
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 .1186756919236737 3.217e-08  
a 2.395852405441999 9.2984e-09 au
q 2.111522963479171 7.5144e-08 au
i 5.697027784631915 3.7642e-06 deg
node 319.4103672213786 4.2417e-05 deg
peri 168.2910590967025 4.75e-05 deg
M 86.46804307816012 2.1028e-05 deg
tp 2458675.156865438257
(2019-Jul-10.65686544)
7.8493e-05 TDB
period 1354.529653647384
3.71
7.8855e-06
2.159e-08
d
yr
n .2657749123694833 1.5472e-09 deg/d
Q 2.680181847404826 1.0402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      15591 days (42.69 yr)  
   first obs. used      1977-10-16  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:01:32  

Additional Information
 Earth MOID = 1.12684 au 
 Jupiter MOID = 2.36494 au 
 T_jup = 3.513 
[ 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 15.4   n/a MPO468641  

70245 (1999 RW81)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RW81 = 1217 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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