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JPL Small-Body Database Browser
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136994 (1998 SX56)
Classification: Main-belt Asteroid          SPK-ID: 2136994
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453563846716235 5.4048e-08  
a 2.388708465979799 1.0333e-08 au
q 1.802623592732495 1.2756e-07 au
i 3.055954367720472 5.0322e-06 deg
node 24.24318024037493 8.2471e-05 deg
peri 25.92045371545655 8.3085e-05 deg
M 177.4751533195863 1.0028e-05 deg
tp 2457935.719595699905
(2017-Jul-01.21959570)
3.5536e-05 TDB
period 1348.475778561971
3.69
8.75e-06
2.396e-08
d
yr
n .2669680877649191 1.7323e-09 deg/d
Q 2.974793339227102 1.2869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5039  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:01:31  

Additional Information
 Earth MOID = .813178 au 
 Jupiter MOID = 2.41588 au 
 T_jup = 3.490 
[ 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 15.6   n/a MPO338189  

136994 (1998 SX56)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SX56 = 2000 EP70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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