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91520 (1999 RK183)
Classification: Main-belt Asteroid          SPK-ID: 2091520
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01872812869815139 4.0311e-08  
a 2.911548957253923 1.897e-08 au
q 2.857021093671503 1.2144e-07 au
i 2.921672074309983 5.037e-06 deg
node 133.3359482991995 0.00011949 deg
peri 350.5271595866035 0.00021769 deg
M 293.2242417974131 0.00018189 deg
tp 2459337.089760204782
(2021-May-02.58976020)
0.00091729 TDB
period 1814.615317524426
4.97
1.7735e-05
4.856e-08
d
yr
n .1983891552789971 1.9389e-09 deg/d
Q 2.966076820836343 1.9325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      7472 days (20.46 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4965  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:32:24  

Additional Information
 Earth MOID = 1.87216 au 
 Jupiter MOID = 2.01986 au 
 T_jup = 3.281 
[ 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 14.2   n/a MPO412707  

91520 (1999 RK183)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RK183 = 2000 YF75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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