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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457310.5 (2015-Oct-15.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130142045894549 3.4046e-08  
q 1.799459681753483 7.7392e-08 au
tp 2457408.339733939883
(2016-Jan-20.83973394)
4.5649e-05 TDB
node 275.0561047028822 0.00010589 deg
peri 153.2441760888593 0.00010672 deg
i 2.799596913056929 4.1629e-06 deg
  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
 Jupiter MOID = 2.52439 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.159119014955184E-15 -2.623589154922941E-15 -2.347499668655197E-13 -6.746190179367897E-15 -8.545979102643603E-14 -6.954606142841549E-16
q -2.623589154922941E-15 5.98949122583099E-15 6.240360649889458E-13 1.594839943731901E-14 2.175501245286508E-13 1.54226012618854E-15
tp -2.347499668655197E-13 6.240360649889458E-13 2.083861874777955E-9 2.435151274087299E-11 6.342749009338047E-10 -3.399365453000363E-14
node -6.746190179367897E-15 1.594839943731901E-14 2.435151274087299E-11 1.121194319431481E-8 -1.119046269100988E-8 8.681343348166826E-11
peri -8.545979102643603E-14 2.175501245286508E-13 6.342749009338047E-10 -1.119046269100988E-8 1.138869880072473E-8 -8.670010221584966E-11
i -6.954606142841549E-16 1.54226012618854E-15 -3.399365453000363E-14 8.681343348166826E-11 -8.670010221584966E-11 1.732997243202613E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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