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109958 (2001 SD48)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109958
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081747735363891 4.3531e-08  
a 3.244084043776346 2.99e-08 au
q 2.893155987007826 1.3639e-07 au
i 6.303444037027411 5.2443e-06 deg
node 65.35500091240975 5.0403e-05 deg
peri 221.4498852131191 5.7185e-05 deg
M 144.0913690385452 2.8161e-05 deg
tp 2458146.275468892797
(2018-Jan-27.77546889)
0.00016481 TDB
period 2134.207157934142
5.84
2.9506e-05
8.078e-08
d
yr
n .1686809074094151 2.3321e-09 deg/d
Q 3.595012100544865 3.3135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      6967 days (19.07 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:47  

Additional Information
 Earth MOID = 1.8807 au 
 Jupiter MOID = 1.55235 au 
 T_jup = 3.164 
[ 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 14.6   n/a MPO453561  
diameter diameter 4.949 km 1.979 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.104   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109958 (2001 SD48)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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