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441038 (2007 GW21)
Classification: Main-belt Asteroid          SPK-ID: 2441038
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222285619406663 5.2269e-08  
a 2.398796909530827 2.3452e-08 au
q 2.10559541289116 1.1813e-07 au
i 6.872608072392008 6.3119e-06 deg
node 46.32936158778634 5.4036e-05 deg
peri 250.363580819431 6.9441e-05 deg
M 127.7410522569142 4.3286e-05 deg
tp 2458518.977443171316
(2019-Feb-04.47744317)
0.00015971 TDB
period 1357.027497391259
3.72
1.99e-05
5.448e-08
d
yr
n .2652857076898306 3.8903e-09 deg/d
Q 2.691998406170495 2.6318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      4583 days (12.55 yr)  
   first obs. used      2007-04-11  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54582  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:55:32  

Additional Information
 Earth MOID = 1.10177 au 
 Jupiter MOID = 2.48792 au 
 T_jup = 3.507 
[ show covariance matrix ]

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 MPO450443  

441038 (2007 GW21)          Discovered 2007-Apr-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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