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101210 (1998 SW50)
Classification: Main-belt Asteroid          SPK-ID: 2101210
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08443154329898568 4.8638e-08  
a 2.994964050819042 2.0759e-08 au
q 2.742094613883409 1.3961e-07 au
i 5.633730380250409 5.245e-06 deg
node 16.02996595092616 4.8573e-05 deg
peri 26.81887980565626 6.0662e-05 deg
M 86.34304780066334 3.3947e-05 deg
tp 2458746.442638160518
(2019-Sep-19.94263816)
0.00017853 TDB
period 1893.153582435363
5.18
1.9683e-05
5.389e-08
d
yr
n .1901588985384345 1.9771e-09 deg/d
Q 3.247833487754676 2.2512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8183 days (22.40 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-02-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51737  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:44  

Additional Information
 Earth MOID = 1.75067 au 
 Jupiter MOID = 2.11494 au 
 T_jup = 3.242 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO532316  
diameter diameter 3.807 km 0.699 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.122   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101210 (1998 SW50)          Discovered 1998-Sep-26 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 SW50 = 2003 SY118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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