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JPL Small-Body Database Browser
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442365 (2011 SJ250)
Classification: Main-belt Asteroid          SPK-ID: 2442365
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2531288999900912 1.221e-07  
a 2.61592093857722 5.2318e-08 au
q 1.953755748934121 3.4631e-07 au
i 7.098980885199246 8.9183e-06 deg
node 226.9745586205417 8.334e-05 deg
peri 104.3392111630584 8.748e-05 deg
M 311.0498806448889 1.5586e-05 deg
tp 2458810.629294466144
(2019-Nov-23.12929447)
6.8216e-05 TDB
period 1545.380215705508
4.23
4.6361e-05
1.269e-07
d
yr
n .2329523804830452 6.9885e-09 deg/d
Q 3.278086128220318 6.5561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      3539 days (9.69 yr)  
   first obs. used      2006-04-26  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55384  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:21  

Additional Information
 Earth MOID = .957369 au 
 Jupiter MOID = 2.16871 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456601.5 (2013-Nov-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2539669734817676 1.2262e-07  
q 1.949681154826359 3.4789e-07 au
tp 2457268.180451083630
(2015-Sep-02.68045108)
7.1818e-05 TDB
node 226.9860911734581 8.3358e-05 deg
peri 104.7342304651157 8.7454e-05 deg
i 7.100243176929934 8.9284e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      3539 days (9.69 yr)  
   first obs. used      2006-04-26  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55384  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:21  

Additional Information
 Jupiter MOID = 2.16871 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.503657029474048E-14 -4.250586643880777E-14 3.648505555097904E-12 7.348545966235035E-14 1.344575428889004E-12 -1.063143294343074E-13
q -4.250586643880777E-14 1.210263115539223E-13 -1.071537873435018E-11 -1.749071571536419E-13 -4.11863442543602E-12 3.020583281190217E-13
tp 3.648505555097904E-12 -1.071537873435018E-11 5.157794835804107E-9 -7.807515475037813E-11 1.957538928772514E-9 -2.268635364127872E-11
node 7.348545966235035E-14 -1.749071571536419E-13 -7.807515475037813E-11 6.948510651489246E-9 -6.927754252602409E-9 -4.330811402768356E-10
peri 1.344575428889004E-12 -4.11863442543602E-12 1.957538928772514E-9 -6.927754252602409E-9 7.648219047166211E-9 4.206914551463136E-10
i -1.063143294343074E-13 3.020583281190217E-13 -2.268635364127872E-11 -4.330811402768356E-10 4.206914551463136E-10 7.971593094245411E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO456095  

442365 (2011 SJ250)          Discovered 2006-Apr-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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