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78421 (2002 QE41)
Classification: Main-belt Asteroid          SPK-ID: 2078421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137247334406697 6.8471e-08  
a 3.017908227922804 2.3681e-08 au
q 2.674697419153879 2.0709e-07 au
i 9.597335856897335 6.9725e-06 deg
node 340.490674711699 2.7272e-05 deg
peri 347.529864562702 3.3835e-05 deg
M 168.9641635645828 2.1303e-05 deg
tp 2458301.727920551526
(2018-Jul-02.22792055)
0.00011201 TDB
period 1914.950139576655
5.24
2.254e-05
6.171e-08
d
yr
n .1879944509049131 2.2128e-09 deg/d
Q 3.361119036691729 2.6375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1992-10-03  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52963  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:30:22  

Additional Information
 Earth MOID = 1.66269 au 
 Jupiter MOID = 1.99772 au 
 T_jup = 3.216 
[ 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 14.65   n/a MPCxxxxx  

78421 (2002 QE41)          Discovered 2002-Aug-29 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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