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208033 (1999 QR)
Classification: Main-belt Asteroid          SPK-ID: 2208033
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1387426262708811 4.8496e-08  
a 2.388561981032248 1.1321e-08 au
q 2.057166618773056 1.1496e-07 au
i 7.729590473900919 5.0043e-06 deg
node 155.7280468826308 3.0692e-05 deg
peri 201.548574595763 3.4004e-05 deg
M 207.6761738755817 1.7458e-05 deg
tp 2459571.016933222398
(2021-Dec-22.51693322)
6.7866e-05 TDB
period 1348.351739748867
3.69
9.5865e-06
2.625e-08
d
yr
n .2669926469387363 1.8983e-09 deg/d
Q 2.719957343291441 1.2892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      9572 days (26.21 yr)  
   first obs. used      1994-03-04  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:29:10  

Additional Information
 Earth MOID = 1.05442 au 
 Jupiter MOID = 2.71556 au 
 T_jup = 3.508 
[ 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 16.3   n/a MPO418109  

208033 (1999 QR)          Discovered 1999-Aug-20 by Klet at Klet
Reference: 20090311/Numbers.arcLast Updated: 2009-03-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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