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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457106.5 (2015-Mar-25.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01610412728663969 4.2448e-08  
q 2.864306515926059 1.2696e-07 au
tp 2457536.652057493725
(2016-May-28.15205749)
0.0010431 TDB
node 133.4284285087173 0.00011945 deg
peri 353.3746240749959 0.00023927 deg
i 2.922458894322236 5.0435e-06 deg
  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
 Jupiter MOID = 2.01986 au 
 T_jup = 3.281 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.801840901936969E-15 -5.331477492899017E-15 2.447032165045236E-11 -6.499892477806596E-15 4.882318367463481E-12 -1.311050990357521E-16
q -5.331477492899017E-15 1.611972355387262E-14 -6.884490283862637E-11 2.085571495929851E-14 -1.375881725991655E-11 6.487183586539954E-16
tp 2.447032165045236E-11 -6.884490283862637E-11 1.087979370666446E-6 -1.694427077630554E-11 2.163089767035778E-7 2.549959881428997E-12
node -6.499892477806596E-15 2.085571495929851E-14 -1.694427077630554E-11 1.426855750646229E-8 -1.425325133328996E-8 3.505402061604102E-10
peri 4.882318367463481E-12 -1.375881725991655E-11 2.163089767035778E-7 -1.425325133328996E-8 5.724857040331349E-8 -3.496048803381168E-10
i -1.311050990357521E-16 6.487183586539954E-16 2.549959881428997E-12 3.505402061604102E-10 -3.496048803381168E-10 2.543727302413433E-11

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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