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312933 (2011 WD80)
Classification: Main-belt Asteroid          SPK-ID: 2312933
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07944248330466185 7.5658e-08  
a 2.769904651814213 2.3428e-08 au
q 2.549856547756957 2.162e-07 au
i 1.793304594399834 5.5194e-06 deg
node 99.17381411010767 0.00025014 deg
peri 290.257479960082 0.00025429 deg
M 331.4991779863768 4.025e-05 deg
tp 2459133.806259203975
(2020-Oct-11.30625920)
0.00018753 TDB
period 1683.819971595633
4.61
2.1363e-05
5.849e-08
d
yr
n .2137995783829873 2.7125e-09 deg/d
Q 2.989952755871469 2.5289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      9802 days (26.84 yr)  
   first obs. used      1994-01-04  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65759  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:11:11  

Additional Information
 Earth MOID = 1.55545 au 
 Jupiter MOID = 2.36632 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457483.5 (2016-Apr-05.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08172118592736555 7.5795e-08  
q 2.544001580932644 2.1689e-07 au
tp 2457441.474736540960
(2016-Feb-22.97473654)
0.00019031 TDB
node 99.1993857455485 0.00025052 deg
peri 288.7378389651581 0.0002544 deg
i 1.792720610616593 5.5187e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      9802 days (26.84 yr)  
   first obs. used      1994-01-04  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65759  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:11:11  

Additional Information
 Jupiter MOID = 2.36632 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.744865913242342E-15 -1.63649275402465E-14 4.150009592691935E-12 -1.13121671934143E-14 9.87704485545529E-13 -4.518507893826082E-15
q -1.63649275402465E-14 4.704018751975117E-14 -1.35589461865443E-11 3.624270342069224E-14 -3.215732803863097E-12 1.292794761607647E-14
tp 4.150009592691935E-12 -1.35589461865443E-11 3.621877010618244E-8 -7.504147889384022E-11 8.517236917836961E-9 -2.868814005949028E-12
node -1.13121671934143E-14 3.624270342069224E-14 -7.504147889384022E-11 6.275927432865286E-8 -6.274581094296893E-8 -5.496213271967254E-10
peri 9.87704485545529E-13 -3.215732803863097E-12 8.517236917836961E-9 -6.274581094296893E-8 6.47179185504706E-8 5.486876879223939E-10
i -4.518507893826082E-15 1.292794761607647E-14 -2.868814005949028E-12 -5.496213271967254E-10 5.486876879223939E-10 3.045629846076887E-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 16.9   n/a MPO440463  

312933 (2011 WD80)          Discovered 1999-Feb-07 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2011 WD80 = 1999 CK140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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