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91564 (1999 RN235)
Classification: Main-belt Asteroid          SPK-ID: 2091564
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006693976555218145 5.8557e-08  
a 2.926122361618987 2.2936e-08 au
q 2.906534967132609 1.7806e-07 au
i 2.331506073215591 9.2265e-06 deg
node 43.48016262568395 0.0002234 deg
peri 21.80282117127575 0.00090739 deg
M 343.8859300281779 0.00087884 deg
tp 2459082.335152455982
(2020-Aug-20.83515246)
0.0044632 TDB
period 1828.256606535165
5.01
2.1496e-05
5.885e-08
d
yr
n .1969089014710341 2.3152e-09 deg/d
Q 2.945709756105364 2.309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      7356 days (20.14 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58987  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:56:09  

Additional Information
 Earth MOID = 1.91523 au 
 Jupiter MOID = 2.04004 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456815.5 (2014-Jun-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005518554412999815 9.0376e-08  
q 2.910602006866225 2.6876e-07 au
tp 2457119.081929946849
(2015-Apr-06.58192995)
0.0040814 TDB
node 43.49873016240662 0.00022322 deg
peri 355.3450597132618 0.0008345 deg
i 2.333819357835853 9.2403e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      7356 days (20.14 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58987  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:56:09  

Additional Information
 Jupiter MOID = 2.04004 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.167820097280023E-15 -2.420324300552684E-14 -2.895248926841763E-10 6.152901248532666E-15 -5.700827192428768E-11 -3.543137226500783E-15
q -2.420324300552684E-14 7.223082714288116E-14 8.405308538602427E-10 -2.559030499320884E-14 1.654889665241025E-10 1.099167850317371E-14
tp -2.895248926841763E-10 8.405308538602427E-10 1.665795325864032E-5 1.780293669818062E-10 3.281991844156307E-6 1.210052073732621E-10
node 6.152901248532666E-15 -2.559030499320884E-14 1.780293669818062E-10 4.982724863592986E-8 -4.975014685458163E-8 -1.65304607014388E-9
peri -5.700827192428768E-11 1.654889665241025E-10 3.281991844156307E-6 -4.975014685458163E-8 6.963860448151264E-7 1.675495291466211E-9
i -3.543137226500783E-15 1.099167850317371E-14 1.210052073732621E-10 -1.65304607014388E-9 1.675495291466211E-9 8.538295652914922E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO309821  

91564 (1999 RN235)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RN235 = 1999 TO311 = 2002 CY247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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