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JPL Small-Body Database Browser
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136579 (1981 EC48)
Classification: Main-belt Asteroid          SPK-ID: 2136579
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813816191610855 5.7864e-08  
a 2.692581745986975 2.6827e-08 au
q 2.204196909176275 1.629e-07 au
i 4.477147977686001 6.041e-06 deg
node 221.104795517223 8.965e-05 deg
peri 8.568771243545616 9.2351e-05 deg
M 279.442161512553 2.8085e-05 deg
tp 2459361.624602432740
(2021-May-27.12460243)
0.00012954 TDB
period 1613.807660641796
4.42
2.4118e-05
6.603e-08
d
yr
n .2230749108334456 3.3338e-09 deg/d
Q 3.180966582797675 3.1693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      14212 days (38.91 yr)  
   first obs. used      1981-03-06  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5842  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:41:20  

Additional Information
 Earth MOID = 1.19415 au 
 Jupiter MOID = 1.81024 au 
 T_jup = 3.343 
[ 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 16.1   n/a MPO412866  

136579 (1981 EC48)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1981 EC48 = 1999 JS115 = 2004 PH87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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