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305203 (2007 WN7)
Classification: Main-belt Asteroid          SPK-ID: 2305203
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150848893388108 5.1458e-08  
a 2.613981272285532 2.1499e-08 au
q 2.219665090024021 1.4153e-07 au
i 12.31639487970078 5.7039e-06 deg
node 255.2424588402512 3.6398e-05 deg
peri 162.6895909491968 4.6626e-05 deg
M 350.1780643165492 3.0908e-05 deg
tp 2459042.615961470556
(2020-Jul-12.11596147)
0.00013278 TDB
period 1543.661719852901
4.23
1.9044e-05
5.214e-08
d
yr
n .2332117169001932 2.8771e-09 deg/d
Q 3.008297454547043 2.4742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      7169 days (19.63 yr)  
   first obs. used      2000-02-08  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:39:02  

Additional Information
 Earth MOID = 1.23551 au 
 Jupiter MOID = 2.32289 au 
 T_jup = 3.360 
[ 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 16.1   n/a MPO418593  

305203 (2007 WN7)          Discovered 2007-Nov-18 by LINEAR at Socorro
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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