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JPL Small-Body Database Browser
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442364 (2011 SD250)
Classification: Main-belt Asteroid          SPK-ID: 2442364
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513244129086677 1.3455e-07  
a 2.580179502524035 4.4907e-08 au
q 1.931717403853204 3.7686e-07 au
i 3.449295650509826 8.5967e-06 deg
node 271.3627621187329 0.00018905 deg
peri 132.1900285867519 0.00019891 deg
M 273.3473866886557 6.874e-05 deg
tp 2458964.878272206924
(2020-Apr-25.37827221)		 0.00029787 TDB
period 1513.816756145303
4.14		 3.9521e-05
1.082e-07		 d
yr
n .2378094961220297 6.2085e-09 deg/d
Q 3.228641601194867 5.6193e-08 au
   Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      8634 days (23.64 yr)  
   first obs. used      1996-01-13  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59528  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:04  

Additional Information
 Earth MOID = .942305 au 
 Jupiter MOID = 2.19069 au 
 T_jup = 3.377 
[ 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 18.2   n/a E2014B58  

442364 (2011 SD250)          Discovered 1996-Jan-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SD250 = 2007 TR211 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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