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193868 (2001 QC149)
Classification: Main-belt Asteroid          SPK-ID: 2193868
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21531643811554 7.7071e-08  
a 2.256114825452978 7.7329e-09 au
q 1.77033621725678 1.7334e-07 au
i 5.9180693001507 8.3037e-06 deg
node 343.4955798586233 4.5541e-05 deg
peri 341.7429118744344 4.7065e-05 deg
M 192.6261480836004 1.0696e-05 deg
tp 2459575.973508784313
(2021-Dec-27.47350878)
3.7676e-05 TDB
period 1237.770779547039
3.39
6.3637e-06
1.742e-08
d
yr
n .2908454505055787 1.4953e-09 deg/d
Q 2.741893433649176 9.3979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-07-27  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 23:11:13  

Additional Information
 Earth MOID = .759835 au 
 Jupiter MOID = 2.60056 au 
 T_jup = 3.586 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457040.5 (2015-Jan-18.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2162085236355784 7.7224e-08  
q 1.768116843572772 1.7383e-07 au
tp 2457100.118718917455
(2015-Mar-18.61871892)
3.5069e-05 TDB
node 343.5502989715367 4.5488e-05 deg
peri 341.6456468690123 4.6995e-05 deg
i 5.923371280946492 8.3087e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-07-27  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 23:11:13  

Additional Information
 Jupiter MOID = 2.60056 au 
 T_jup = 3.586 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.963474004701071E-15 -1.341580957888872E-14 5.434862794287912E-13 -6.301203885794337E-14 1.516087331329526E-13 3.562451622447664E-15
q -1.341580957888872E-14 3.02170385923966E-14 -1.225978493473328E-12 1.41406589348754E-13 -3.424969015748699E-13 -7.732850378086361E-15
tp 5.434862794287912E-13 -1.225978493473328E-12 1.229813801148162E-9 -8.021944732815386E-12 4.256235745933408E-10 -1.400384423865703E-12
node -6.301203885794337E-14 1.41406589348754E-13 -8.021944732815386E-12 2.06916722846931E-9 -2.058484131194144E-9 -5.964902369060204E-11
peri 1.516087331329526E-13 -3.424969015748699E-13 4.256235745933408E-10 -2.058484131194144E-9 2.208513877037316E-9 5.880503832302281E-11
i 3.562451622447664E-15 -7.732850378086361E-15 -1.400384423865703E-12 -5.964902369060204E-11 5.880503832302281E-11 6.903388353685206E-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 17.2   n/a MPO470086  

193868 (2001 QC149)          Discovered 2001-Aug-21 by NEAT at Haleakala
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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