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136953 (1998 RP4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2136953
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0735478317288107 4.3626e-08  
a 1.934071966586167 8.7993e-09 au
q 1.791825167036277 8.2808e-08 au
i 22.33248534261434 8.6813e-06 deg
node 182.9018379058693 1.0397e-05 deg
peri 253.8603460388243 5.2346e-05 deg
M 316.5158575783266 5.2007e-05 deg
tp 2459119.168589606100
(2020-Sep-26.66858961)
0.00014198 TDB
period 982.4430212725846
2.69
6.7046e-06
1.836e-08
d
yr
n .3664334645419766 2.5007e-09 deg/d
Q 2.076318766136056 9.4464e-09 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      7028 days (19.24 yr)  
   first obs. used      1998-08-28  
   last obs. used      2017-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58159  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 17:04:06  

Additional Information
 Earth MOID = .865005 au 
 Jupiter MOID = 3.06926 au 
 T_jup = 3.815 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO432831  

136953 (1998 RP4)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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