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494690 (2004 JQ1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2494690
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .450082970047198 2.6687e-07  
a 1.193736447713413 8.9042e-09 au
q .6564560018729684 3.1687e-07 au
i 32.82929582186274 3.7603e-05 deg
node 77.07167963621548 2.5503e-05 deg
peri 272.6205288570902 3.698e-05 deg
M 189.995232855455 5.7014e-05 deg
tp 2459425.467461084846
(2021-Jul-29.96746108)
7.7757e-05 TDB
period 476.3883234032191
1.30
5.3301e-06
1.459e-08
d
yr
n .7556860282137792 8.4551e-09 deg/d
Q 1.731016893553857 1.2912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      4772 days (13.07 yr)  
   first obs. used      2004-05-11  
   last obs. used      2017-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:46:29  

Additional Information
 Earth MOID = .034033 au 
 Jupiter MOID = 4.008 au 
 T_jup = 5.078 
[ 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 20.0   n/a MPO260745  

494690 (2004 JQ1)          Discovered 2004-May-11 by LINEAR at Socorro
Reference: Last Updated: 2017-06-12

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