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193942 (2001 RQ36)
Classification: Main-belt Asteroid          SPK-ID: 2193942
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2143151840327702 3.4159e-08  
a 2.285756279172694 9.1296e-09 au
q 1.795884001547738 7.7743e-08 au
i 2.802668664485659 4.1641e-06 deg
node 274.924934546166 0.00010576 deg
peri 153.4282408118337 0.00010657 deg
M 93.83790069908204 1.382e-05 deg
tp 2458671.482429093736
(2019-Jul-06.98242909)
4.7606e-05 TDB
period 1262.243982909281
3.46
7.5624e-06
2.07e-08
d
yr
n .2852063506535833 1.7087e-09 deg/d
Q 2.77562855679765 1.1086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      549  
   data-arc span      6805 days (18.63 yr)  
   first obs. used      2001-09-08  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53725  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:58:37  

Additional Information
 Earth MOID = .810583 au 
 Jupiter MOID = 2.52439 au 
 T_jup = 3.570 
[ 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 16.8   n/a MPO454348  

193942 (2001 RQ36)          Discovered 2001-Sep-08 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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