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JPL Small-Body Database Browser
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469902 (2005 WF99)
Classification: Main-belt Asteroid          SPK-ID: 2469902
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 .1743267028670641 1.097e-07  
a 2.448486224249549 2.8071e-08 au
q 2.021649693760698 2.8661e-07 au
i 7.720123239939576 7.4864e-06 deg
node 80.4521658955012 6.4467e-05 deg
peri 310.3465772255142 7.2434e-05 deg
M 210.5203269079394 3.7434e-05 deg
tp 2459181.564794003427
(2020-Nov-28.06479400)
0.00015357 TDB
period 1399.409842918261
3.83
2.4066e-05
6.589e-08
d
yr
n .2572512990542309 4.4239e-09 deg/d
Q 2.8753227547384 3.2964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      6437 days (17.62 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61243  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:47  

Additional Information
 Earth MOID = 1.03722 au 
 Jupiter MOID = 2.56754 au 
 T_jup = 3.464 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457118.5 (2015-Apr-06.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1754097393859634 1.0972e-07  
q 2.0174933205558 2.8656e-07 au
tp 2457783.270144446597
(2017-Jan-29.77014445)
0.00013387 TDB
node 80.46473143603278 6.4507e-05 deg
peri 310.4898127353251 7.2391e-05 deg
i 7.72015019498389 7.4857e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      6437 days (17.62 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61243  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:47  

Additional Information
 Jupiter MOID = 2.56754 au 
 T_jup = 3.464 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.203753791103024E-14 -3.139765941498021E-14 -9.250327675610869E-12 1.387416691903951E-13 -1.996375755682599E-12 -5.283923024042569E-14
q -3.139765941498021E-14 8.211804086414672E-14 2.493257428693498E-11 -3.603523422113604E-13 5.386558673829898E-12 1.403963394431925E-13
tp -9.250327675610869E-12 2.493257428693498E-11 1.792181030222038E-8 -1.139971583409746E-10 4.444311677887427E-9 6.539058653430932E-11
node 1.387416691903951E-13 -3.603523422113604E-13 -1.139971583409746E-10 4.161162415539526E-9 -4.147493940600638E-9 5.123766439988736E-11
peri -1.996375755682599E-12 5.386558673829898E-12 4.444311677887427E-9 -4.147493940600638E-9 5.24042898819664E-9 -3.591637885979828E-11
i -5.283923024042569E-14 1.403963394431925E-13 6.539058653430932E-11 5.123766439988736E-11 -3.591637885979828E-11 5.603570009634438E-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 17.6   n/a MPO434692  

469902 (2005 WF99)          Discovered 2005-Nov-28 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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