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109946 (2001 SH44)
Classification: Main-belt Asteroid          SPK-ID: 2109946
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441249472051421 3.4971e-08  
a 2.714285439537987 1.3833e-08 au
q 2.323089193864889 9.7302e-08 au
i 13.17146141541954 6.1592e-06 deg
node 28.48921754676968 1.5219e-05 deg
peri 98.37016578670759 2.7059e-05 deg
M 319.1775435339477 2.3222e-05 deg
tp 2459185.715929789676
(2020-Dec-02.21592979)
0.00010596 TDB
period 1633.359197277414
4.47
1.2486e-05
3.418e-08
d
yr
n .2204046731423625 1.6849e-09 deg/d
Q 3.105481685211085 1.5827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:09  

Additional Information
 Earth MOID = 1.3807 au 
 Jupiter MOID = 2.05057 au 
 T_jup = 3.309 
[ 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 14.2   n/a MPO502758  
diameter diameter 4.850 km 0.578 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109946 (2001 SH44)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 SH44 = 1999 GO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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