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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457319.5 (2015-Oct-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130094812068614 3.4014e-08  
q 1.799455462363196 7.7305e-08 au
tp 2457408.343199163380
(2016-Jan-20.84319916)
4.5649e-05 TDB
node 275.0558534093948 0.00010588 deg
peri 153.2459373348955 0.00010671 deg
i 2.799602100157308 4.1529e-06 deg
  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
 Jupiter MOID = 2.52439 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.156926549095817E-15 -2.618174069576417E-15 -2.352546401923627E-13 -6.736795217952709E-15 -8.588165849138474E-14 -6.908822616861881E-16
q -2.618174069576417E-15 5.976126975428339E-15 6.252916144639603E-13 1.592166182916571E-14 2.185955053997307E-13 1.532066677544139E-15
tp -2.352546401923627E-13 6.252916144639603E-13 2.083798940215304E-9 2.431553430039005E-11 6.342350815394728E-10 -4.257478548450157E-14
node -6.736795217952709E-15 1.592166182916571E-14 2.431553430039005E-11 1.121052135770478E-8 -1.118905566505321E-8 8.646500708258431E-11
peri -8.588165849138474E-14 2.185955053997307E-13 6.342350815394728E-10 -1.118905566505321E-8 1.138723594959115E-8 -8.635508475782832E-11
i -6.908822616861881E-16 1.532066677544139E-15 -4.257478548450157E-14 8.646500708258431E-11 -8.635508475782832E-11 1.724622670373126E-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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