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442368 (2011 SO256)
Classification: Main-belt Asteroid          SPK-ID: 2442368
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2178564746817346 2.0083e-07  
a 2.63772826278887 3.5063e-08 au
q 2.063082082289311 5.4473e-07 au
i 3.56146596694266 2.0882e-05 deg
node 354.9941196216678 0.00023624 deg
peri 291.4515707543158 0.00023949 deg
M 60.60755859041332 3.2663e-05 deg
tp 2458737.068445139795
(2019-Sep-10.56844514)
0.00014276 TDB
period 1564.744760477358
4.28
3.12e-05
8.542e-08
d
yr
n .2300694714518005 4.5875e-09 deg/d
Q 3.21237444328843 4.2702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      7093 days (19.42 yr)  
   first obs. used      1998-09-12  
   last obs. used      2018-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58129  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:17:12  

Additional Information
 Earth MOID = 1.05003 au 
 Jupiter MOID = 1.97943 au 
 T_jup = 3.360 
[ 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 17.5   n/a MPO437720  
diameter diameter 2.351 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442368 (2011 SO256)          Discovered 1998-Sep-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 SO256 = 1998 RT7 = 2010 MQ42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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