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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2143151840202986 3.4127e-08  
a 2.285756279163696 9.1237e-09 au
q 1.795884001569176 7.7657e-08 au
i 2.802668751536106 4.154e-06 deg
node 274.9249349068681 0.00010575 deg
peri 153.4282404534049 0.00010657 deg
M 93.83790069746021 1.382e-05 deg
tp 2458671.482429101366
(2019-Jul-06.98242910)
4.7606e-05 TDB
period 1262.243982901828
3.46
7.5575e-06
2.069e-08
d
yr
n .2852063506552673 1.7076e-09 deg/d
Q 2.775628556758217 1.1079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      6831 days (18.70 yr)  
   first obs. used      2001-09-08  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53586  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:24:28  

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 16.92   n/a E2021B55  

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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