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447296 (2005 WR77)
Classification: Main-belt Asteroid          SPK-ID: 2447296
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446682898728605 6.106e-08  
a 2.271152989126905 1.7966e-08 au
q 1.94258917015028 1.2968e-07 au
i 2.848581013566251 7.5507e-06 deg
node 283.5324828860484 0.00012628 deg
peri 152.9845539664137 0.00013946 deg
M 82.80724649654066 5.6647e-05 deg
tp 2458712.936437680695
(2019-Aug-17.43643768)
0.00019423 TDB
period 1250.166945706554
3.42
1.4835e-05
4.062e-08
d
yr
n .2879615408456825 3.417e-09 deg/d
Q 2.599716808103529 2.0566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5181 days (14.18 yr)  
   first obs. used      2005-11-25  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:08:54  

Additional Information
 Earth MOID = .958423 au 
 Jupiter MOID = 2.63008 au 
 T_jup = 3.597 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.2   n/a MPO357071  

447296 (2005 WR77)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

Alternate Designations
 2005 WR77 = 2012 XA145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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