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447045 (2004 RL91)
Classification: Main-belt Asteroid          SPK-ID: 2447045
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1645427295576015 5.8311e-08  
a 3.034114842344527 5.2131e-08 au
q 2.534873304393927 2.0115e-07 au
i 10.35107543061762 7.2939e-06 deg
node 192.7966699295969 3.8488e-05 deg
peri 147.6841245895515 4.5764e-05 deg
M 350.9749866413466 2.4758e-05 deg
tp 2459048.894031402990
(2020-Jul-18.39403140)
0.00013301 TDB
period 1930.39617923358
5.29
4.9751e-05
1.362e-07
d
yr
n .18649021577681 4.8063e-09 deg/d
Q 3.533356380295127 6.0709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      5765 days (15.78 yr)  
   first obs. used      2004-08-21  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 07:24:04  

Additional Information
 Earth MOID = 1.53434 au 
 Jupiter MOID = 1.95322 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457795.5 (2017-Feb-11.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670760567355369 5.8488e-08  
q 2.524665583039715 2.0189e-07 au
tp 2457122.579795299911
(2015-Apr-10.07979530)
0.0001311 TDB
node 192.9374790277369 3.8404e-05 deg
peri 148.126664744088 4.5527e-05 deg
i 10.36636126901516 7.3086e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      5765 days (15.78 yr)  
   first obs. used      2004-08-21  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 07:24:04  

Additional Information
 Jupiter MOID = 1.95322 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.42079955111452E-15 -1.160025260838853E-14 2.923815484208283E-12 1.922772183554709E-14 4.924601111445503E-13 3.240884486298718E-15
q -1.160025260838853E-14 4.075854176545826E-14 -9.959723207839883E-12 -7.427989352066255E-14 -1.563992207561906E-12 -6.891095495353796E-15
tp 2.923815484208283E-12 -9.959723207839883E-12 1.71875745823953E-8 -1.929468009704686E-11 3.254664906020006E-9 1.493804882300687E-11
node 1.922772183554709E-14 -7.427989352066255E-14 -1.929468009704686E-11 1.474881788683345E-9 -1.454439063859973E-9 1.226523357930227E-10
peri 4.924601111445503E-13 -1.563992207561906E-12 3.254664906020006E-9 -1.454439063859973E-9 2.072686261327197E-9 -1.175240251126727E-10
i 3.240884486298718E-15 -6.891095495353796E-15 1.493804882300687E-11 1.226523357930227E-10 -1.175240251126727E-10 5.341579152734226E-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 16.2   n/a MPO440855  

447045 (2004 RL91)          Discovered 2004-Aug-21 by CSS at Catalina
Reference: Last Updated: 2015-10-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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