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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 ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153164507050376 7.6092e-08  
a 2.256114825533514 7.6686e-09 au
q 1.770336188916622 1.7104e-07 au
i 5.918071506259535 7.9126e-06 deg
node 343.4955830201372 4.3806e-05 deg
peri 341.7429075824702 4.4984e-05 deg
M 192.6261486234716 1.0008e-05 deg
tp 2459575.973506958913
(2021-Dec-27.47350696)
3.5509e-05 TDB
period 1237.770779613316
3.39
6.3108e-06
1.728e-08
d
yr
n .2908454504900054 1.4829e-09 deg/d
Q 2.741893462150405 9.3198e-09 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      6764 days (18.52 yr)  
   first obs. used      2001-07-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:10:51  

Additional Information
 Earth MOID = .759835 au 
 Jupiter MOID = 2.60056 au 
 T_jup = 3.586 
[ 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 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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