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415820 (2001 QJ154)
Classification: Main-belt Asteroid          SPK-ID: 2415820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528447949771544 2.613e-07  
a 2.593624215664267 3.6122e-08 au
q 2.197202254173279 6.5563e-07 au
i 14.42808105054225 9.604e-06 deg
node 13.62705755863769 3.3892e-05 deg
peri 310.150813298004 7.0313e-05 deg
M 242.1371484321421 9.2749e-05 deg
tp 2459699.997649426797
(2022-Apr-30.49764943)
0.00040131 TDB
period 1525.664375175233
4.18
3.1873e-05
8.726e-08
d
yr
n .2359627752064747 4.9295e-09 deg/d
Q 2.990046177155255 4.1644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      6728 days (18.42 yr)  
   first obs. used      2001-08-30  
   last obs. used      2020-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .714  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 13:10:00  

Additional Information
 Earth MOID = 1.2138 au 
 Jupiter MOID = 2.48097 au 
 T_jup = 3.358 
[ 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 16.9   n/a MPO455964  

415820 (2001 QJ154)          Discovered 2001-Aug-30 by Sarounova, L. at Ondrejov
Reference: Last Updated: 2015-01-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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