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JPL Small-Body Database Browser
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469899 (2005 WY54)
Classification: Main-belt Asteroid          SPK-ID: 2469899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2450495922945651 1.642e-07  
a 2.389661989287856 1.5236e-08 au
q 1.804076293091047 3.9895e-07 au
i 5.461736102115167 9.1676e-06 deg
node 35.74060061155864 8.2316e-05 deg
peri 320.6616318272044 8.736e-05 deg
M 252.8762951721441 1.6761e-05 deg
tp 2459002.000623151892
(2020-Jun-01.50062315)
6.2806e-05 TDB
period 1349.283284842998
3.69
1.2904e-05
3.533e-08
d
yr
n .2668083152322528 2.5517e-09 deg/d
Q 2.975247685484664 1.897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1994-10-13  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68273  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:47  

Additional Information
 Earth MOID = .80338 au 
 Jupiter MOID = 2.4747 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457253.5 (2015-Aug-19.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2455236766955347 1.6481e-07  
q 1.802125658534232 4.0064e-07 au
tp 2457653.995074794741
(2016-Sep-22.49507479)
6.3679e-05 TDB
node 35.74176584278636 8.2294e-05 deg
peri 320.8554384739019 8.729e-05 deg
i 5.463680344799216 9.172e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1994-10-13  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68273  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:47  

Additional Information
 Jupiter MOID = 2.4747 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.716289866400549E-14 -6.601080725632469E-14 6.135225314386847E-12 -4.872843502239613E-13 3.592612310469763E-12 -1.68399660659775E-13
q -6.601080725632469E-14 1.60508855260253E-13 -1.482504612101882E-11 1.185374424279042E-12 -8.715852415052774E-12 4.095699849520768E-13
tp 6.135225314386847E-12 -1.482504612101882E-11 4.055016605657676E-9 -1.221656507510576E-10 1.861276410517351E-9 -3.438039705338561E-11
node -4.872843502239613E-13 1.185374424279042E-12 -1.221656507510576E-10 6.772325910105015E-9 -6.800999477517101E-9 -3.832469765415472E-10
peri 3.592612310469763E-12 -8.715852415052774E-12 1.861276410517351E-9 -6.800999477517101E-9 7.619463398683791E-9 3.643183501175247E-10
i -1.68399660659775E-13 4.095699849520768E-13 -3.438039705338561E-11 -3.832469765415472E-10 3.643183501175247E-10 8.412477576575263E-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 17.9   n/a MPO397654  

469899 (2005 WY54)          Discovered 2005-Nov-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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