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JPL Small-Body Database Browser
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442367 (2011 SD256)
Classification: Main-belt Asteroid          SPK-ID: 2442367
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185621243908649 1.228e-07  
a 2.623224154985118 2.1211e-08 au
q 2.049886710918139 3.2524e-07 au
i 2.68496384733094 1.1513e-05 deg
node 171.4728379731661 0.00014068 deg
peri 175.8040979123126 0.00014267 deg
M 37.8806846051133 1.9112e-05 deg
tp 2458837.207270142924
(2019-Dec-19.70727014)
8.1536e-05 TDB
period 1551.85639756395
4.25
1.8822e-05
5.153e-08
d
yr
n .2319802274006251 2.8137e-09 deg/d
Q 3.196561599052096 2.5847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      7604 days (20.82 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49491  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:05  

Additional Information
 Earth MOID = 1.04315 au 
 Jupiter MOID = 2.23023 au 
 T_jup = 3.368 
[ 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 17.8   n/a MPO477088  

442367 (2011 SD256)          Discovered 1998-Sep-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SD256 = 1998 RD14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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