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441278 (2007 WB44)
Classification: Main-belt Asteroid          SPK-ID: 2441278
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039064601059479 7.9441e-08  
a 2.990358107292801 4.4124e-08 au
q 2.679640581914884 2.268e-07 au
i 9.651380188754011 8.4291e-06 deg
node 304.001070871877 4.5719e-05 deg
peri 221.1233856655103 5.9086e-05 deg
M 116.3430500542523 3.9248e-05 deg
tp 2458390.090658780391
(2018-Sep-28.59065878)
0.00020216 TDB
period 1888.788051684981
5.17
4.1805e-05
1.145e-07
d
yr
n .1905984102762855 4.2185e-09 deg/d
Q 3.301075632670718 4.8709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6817 days (18.66 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58021  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:41:58  

Additional Information
 Earth MOID = 1.69697 au 
 Jupiter MOID = 1.75893 au 
 T_jup = 3.227 
[ 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 MPO434637  

441278 (2007 WB44)          Discovered 2007-Nov-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

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