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74803 (1999 SE22)
Classification: Main-belt Asteroid          SPK-ID: 2074803
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06690498485659435 4.2375e-08  
a 2.399479433236209 1.14e-08 au
q 2.238942298091831 1.0259e-07 au
i 7.4028752611037 4.3389e-06 deg
node 60.45830418184718 3.2856e-05 deg
peri 350.2133059359374 4.5919e-05 deg
M 165.2326406095425 3.2893e-05 deg
tp 2458377.386275133071
(2018-Sep-15.88627513)
0.00012258 TDB
period 1357.606706063495
3.72
9.6754e-06
2.649e-08
d
yr
n .265172526323071 1.8898e-09 deg/d
Q 2.560016568380587 1.2163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      807  
   data-arc span      8007 days (21.92 yr)  
   first obs. used      1998-05-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62378  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:37  

Additional Information
 Earth MOID = 1.25007 au 
 Jupiter MOID = 2.6779 au 
 T_jup = 3.512 
[ 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 15.5   n/a MPO468696  

74803 (1999 SE22)          Discovered 1999-Sep-21 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 SE22 = 2001 EU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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