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497135 (2004 QD20)
Classification: Apollo [NEO]          SPK-ID: 2497135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6976248574672828 3.5435e-08  
a 2.172233011593582 1.3724e-08 au
q .6568292664948832 7.5926e-08 au
i 17.53957655635854 6.2286e-06 deg
node 224.1918394023308 3.9136e-05 deg
peri 353.4023762025493 4.3073e-05 deg
M 127.2598906687806 1.0776e-05 deg
tp 2458983.122260529523
(2020-May-13.62226053)
3.266e-05 TDB
period 1169.386406253445
3.20
1.1082e-05
3.034e-08
d
yr
n .3078537582400938 2.9175e-09 deg/d
Q 3.687636756692282 2.3298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      5895 days (16.14 yr)  
   first obs. used      2004-08-26  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53414  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:54:53  

Additional Information
 Earth MOID = .284954 au 
 Jupiter MOID = 1.30652 au 
 T_jup = 3.278 
[ 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 18.12   n/a E2021B25  

497135 (2004 QD20)          Discovered 2004-Aug-26 by LINEAR at Socorro
Reference: Last Updated: 2017-10-09

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