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91473 (1999 RJ95)
Classification: Main-belt Asteroid          SPK-ID: 2091473
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09612802829786321 4.5644e-08  
a 2.914927381406485 1.5062e-08 au
q 2.634721159600426 1.3567e-07 au
i 2.802545448567227 5.3503e-06 deg
node 170.1279425341897 7.8953e-05 deg
peri 239.1980060470062 8.3677e-05 deg
M 19.5897133892603 2.5141e-05 deg
tp 2458901.584211379392
(2020-Feb-22.08421138)
0.00012695 TDB
period 1817.774624663023
4.98
1.4089e-05
3.857e-08
d
yr
n .1980443533074054 1.535e-09 deg/d
Q 3.195133603212543 1.651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      7427 days (20.33 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:03:09  

Additional Information
 Earth MOID = 1.64619 au 
 Jupiter MOID = 2.13697 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457008.5 (2014-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09342078616218201 4.5865e-08  
q 2.642721404040105 1.359e-07 au
tp 2457073.664616579490
(2015-Feb-20.16461658)
0.00013254 TDB
node 170.1738428670988 7.8898e-05 deg
peri 237.4299911751923 8.3906e-05 deg
i 2.801177676097244 5.3535e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      7427 days (20.33 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:03:09  

Additional Information
 Jupiter MOID = 2.13697 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.10364112315982E-15 -6.20239463951676E-15 -3.139448028586479E-12 2.162009433902363E-14 -6.832757327152438E-13 -1.335636729746549E-16
q -6.20239463951676E-15 1.846937322720294E-14 8.956801902082658E-12 -6.054393377877002E-14 1.946543101602697E-12 7.252938554156727E-16
tp -3.139448028586479E-12 8.956801902082658E-12 1.756681271663201E-8 -7.41160269096775E-11 3.80176255493874E-9 -1.187728904684867E-12
node 2.162009433902363E-14 -6.054393377877002E-14 -7.41160269096775E-11 6.224858316244E-9 -6.232847869140474E-9 1.67287528139406E-10
peri -6.832757327152438E-13 1.946543101602697E-12 3.80176255493874E-9 -6.232847869140474E-9 7.040287865051861E-9 -1.673427389092178E-10
i -1.335636729746549E-16 7.252938554156727E-16 -1.187728904684867E-12 1.67287528139406E-10 -1.673427389092178E-10 2.866025340625972E-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 14.9   n/a MPO309820  

91473 (1999 RJ95)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RJ95 = 2000 YJ96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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