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308299 (2005 JM137)
Classification: Main-belt Asteroid          SPK-ID: 2308299
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 .1086212653114881 7.4193e-08  
a 2.645561558002701 2.7061e-08 au
q 2.358197314113016 1.9067e-07 au
i 12.06647664805384 8.1904e-06 deg
node 67.33056873594838 2.2758e-05 deg
peri 206.781713751162 3.9118e-05 deg
M 141.7125349767486 2.8616e-05 deg
tp 2458381.798740776247
(2018-Sep-20.29874078)
0.00012551 TDB
period 1571.7201965027
4.30
2.4115e-05
6.602e-08
d
yr
n .2290484023817032 3.5143e-09 deg/d
Q 2.932925801892386 3e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      5285 days (14.47 yr)  
   first obs. used      2005-05-12  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63264  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:53:50  

Additional Information
 Earth MOID = 1.34839 au 
 Jupiter MOID = 2.15452 au 
 T_jup = 3.353 
[ 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 16.1   n/a MPO450234  

308299 (2005 JM137)          Discovered 2005-May-13 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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