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344009 (2011 SH99)
Classification: Main-belt Asteroid          SPK-ID: 2344009
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385422343101396 6.3649e-08  
a 2.748598889629751 3.5409e-08 au
q 2.367801858238077 1.8983e-07 au
i 4.810505237171426 1.0834e-05 deg
node 178.3522359022736 9.5902e-05 deg
peri 129.3177195585348 0.00010898 deg
M 12.96934806412623 4.7022e-05 deg
tp 2458940.537308020106
(2020-Apr-01.03730802)
0.00021756 TDB
period 1664.429777505255
4.56
3.2164e-05
8.806e-08
d
yr
n .2162902904438475 4.1796e-09 deg/d
Q 3.129395921021425 4.0315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      6504 days (17.81 yr)  
   first obs. used      2002-10-10  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61812  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 21:36:35  

Additional Information
 Earth MOID = 1.35683 au 
 Jupiter MOID = 2.13055 au 
 T_jup = 3.328 
[ 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 17.0   n/a MPO476588  
diameter diameter 2.180 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.045   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

344009 (2011 SH99)          Discovered 2007-Nov-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

[ show close-approach data ]
Alternate Designations
 2011 SH99 = 2010 PD43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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