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173705 (2001 QB61)
Classification: Inner Main-belt Asteroid          SPK-ID: 2173705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08519326650080326 6.491e-08  
a 1.919189696805284 1.0325e-08 au
q 1.755687657499755 1.2279e-07 au
i 20.45289730300072 9.4269e-06 deg
node 352.2434635650031 1.3205e-05 deg
peri 114.090796087769 5.6806e-05 deg
M 252.7298565972119 5.3006e-05 deg
tp 2459289.868759482809
(2021-Mar-16.36875948)
0.00014377 TDB
period 971.125330024528
2.66
7.8368e-06
2.146e-08
d
yr
n .370703954340175 2.9915e-09 deg/d
Q 2.082691736110812 1.1205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1999-12-13  
   last obs. used      2020-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53706  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 13:05:52  

Additional Information
 Earth MOID = .824821 au 
 Jupiter MOID = 2.98564 au 
 T_jup = 3.845 
[ 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 MPO367072  

173705 (2001 QB61)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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