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295890 (2008 WW71)
Classification: Main-belt Asteroid          SPK-ID: 2295890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1256092583771388 7.3065e-08  
a 2.746021644717862 2.501e-08 au
q 2.40109590243728 2.0163e-07 au
i 12.21489188287151 8.7777e-06 deg
node 226.5766702503016 2.6789e-05 deg
peri 27.08494053348367 4.2789e-05 deg
M 337.6837163188671 3.1743e-05 deg
tp 2459103.532380424561
(2020-Sep-11.03238042)
0.00014617 TDB
period 1662.08932826036
4.55
2.2707e-05
6.217e-08
d
yr
n .2165948567739118 2.959e-09 deg/d
Q 3.090947386998443 2.8151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7006 days (19.18 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:45:25  

Additional Information
 Earth MOID = 1.39394 au 
 Jupiter MOID = 1.94546 au 
 T_jup = 3.304 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO427597  

295890 (2008 WW71)          Discovered 2008-Nov-19 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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