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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445433832186346 6.0626e-08  
a 2.271100207740866 1.823e-08 au
q 1.942827700085458 1.2848e-07 au
i 2.848409882970464 7.53e-06 deg
node 283.5319921211808 0.00012596 deg
peri 152.8877404458835 0.00013918 deg
M 196.9715894629441 5.7749e-05 deg
tp 2459962.626736728349
(2023-Jan-18.12673673)
0.00020577 TDB
period 1250.123365312952
3.42
1.5052e-05
4.121e-08
d
yr
n .2879715794367852 3.4674e-09 deg/d
Q 2.599372715396275 2.0866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      5195 days (14.22 yr)  
   first obs. used      2005-11-25  
   last obs. used      2020-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:01:12  

Additional Information
 Earth MOID = .958508 au 
 Jupiter MOID = 2.63111 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 18.36   n/a E2021B25  

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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