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109898 (2001 SE20)
Classification: Main-belt Asteroid          SPK-ID: 2109898
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 .08759417495315072 4.433e-08  
a 3.121959665960111 2.735e-08 au
q 2.848494184783322 1.3686e-07 au
i 14.20290113231763 5.0208e-06 deg
node 154.7006579396955 1.9593e-05 deg
peri 52.79580295885518 3.4237e-05 deg
M 290.7276696620014 2.9018e-05 deg
tp 2459388.200762927783
(2021-Jun-22.70076293)
0.0001642 TDB
period 2014.834407518713
5.52
2.6476e-05
7.249e-08
d
yr
n .1786747330979638 2.3479e-09 deg/d
Q 3.395425147136902 2.9745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      7616 days (20.85 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:35:11  

Additional Information
 Earth MOID = 1.87214 au 
 Jupiter MOID = 1.63706 au 
 T_jup = 3.163 
[ 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 14.5   n/a MPO426696  
diameter diameter 6.625 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109898 (2001 SE20)          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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