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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .084292482336073 5.0624e-08  
a 2.994838330659282 2.1713e-08 au
q 2.74239597357279 1.4761e-07 au
i 5.633555929342309 5.7233e-06 deg
node 16.03833757076027 5.0655e-05 deg
peri 26.82390757326269 6.3709e-05 deg
M 48.31246728238218 3.5615e-05 deg
tp 2458746.452329059777
(2019-Sep-19.95232906)
0.00018754 TDB
period 1893.034379799343
5.18
2.0587e-05
5.636e-08
d
yr
n .1901708726696021 2.0682e-09 deg/d
Q 3.247280687745774 2.3543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:50  

Additional Information
 Earth MOID = 1.752 au 
 Jupiter MOID = 2.11524 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 15.2   n/a MPO453465  
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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