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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006694006662449917 5.8018e-08  
a 2.92612237331241 2.2702e-08 au
q 2.906534890650313 1.7647e-07 au
i 2.331505705031152 9.1386e-06 deg
node 43.48028072105944 0.00021839 deg
peri 21.80304280023848 0.00089816 deg
M 343.8855936895174 0.0008704 deg
tp 2459082.336861039256
(2020-Aug-20.83686104)
0.0044203 TDB
period 1828.256617494334
5.01
2.1276e-05
5.825e-08
d
yr
n .1969089002906977 2.2915e-09 deg/d
Q 2.945709855974507 2.2854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      7670 days (21.00 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:25  

Additional Information
 Earth MOID = 1.91523 au 
 Jupiter MOID = 2.04004 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456904.5 (2014-Sep-04.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005451925114944775 8.8789e-08  
q 2.910537249659932 2.6401e-07 au
tp 2457122.236674772894
(2015-Apr-09.73667477)
0.0041376 TDB
node 43.49673955851559 0.00021821 deg
peri 355.9732651877072 0.00084409 deg
i 2.333874619172108 9.1526e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      7670 days (21.00 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-09-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:25  

Additional Information
 Jupiter MOID = 2.04004 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.883423271276431E-15 -2.335654640600281E-14 -2.880416863534467E-10 1.279778808162042E-14 -5.673078692934762E-11 -3.52472737323106E-15
q -2.335654640600281E-14 6.969896391209196E-14 8.349764878448431E-10 -4.579676183779438E-14 1.644405310335049E-10 1.094752872508491E-14
tp -2.880416863534467E-10 8.349764878448431E-10 1.712005256611845E-5 -1.472548235648929E-10 3.373963539492282E-6 1.262331461645788E-10
node 1.279778808162042E-14 -4.579676183779438E-14 -1.472548235648929E-10 4.7616840773083E-8 -4.760560764700412E-8 -1.599575872231003E-9
peri -5.673078692934762E-11 1.644405310335049E-10 3.373963539492282E-6 -4.760560764700412E-8 7.124820190392318E-7 1.623102667628593E-9
i -3.52472737323106E-15 1.094752872508491E-14 1.262331461645788E-10 -1.599575872231003E-9 1.623102667628593E-9 8.376927581907102E-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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