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216753 (2005 QG31)
Classification: Main-belt Asteroid          SPK-ID: 2216753
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1866823350775635 6.7005e-08  
a 2.781222619161475 2.1016e-08 au
q 2.262017486245874 1.9047e-07 au
i 2.718424066661138 4.759e-06 deg
node 84.95087741885173 0.00018276 deg
peri 223.9949592806684 0.00018388 deg
M 121.0894558029205 1.8852e-05 deg
tp 2458630.656127550853
(2019-May-27.15612755)
9.0078e-05 TDB
period 1694.150764172028
4.64
1.9202e-05
5.257e-08
d
yr
n .2124958460683046 2.4085e-09 deg/d
Q 3.300427752077076 2.4939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      5635 days (15.43 yr)  
   first obs. used      2005-08-01  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:08  

Additional Information
 Earth MOID = 1.24634 au 
 Jupiter MOID = 1.96534 au 
 T_jup = 3.306 
[ 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 16.72   n/a MPCxxxxx  
diameter diameter 2.082 km 0.556 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216753 (2005 QG31)          Discovered 2005-Aug-22 by NEAT at Palomar
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

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