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11415 (1999 JG81)
Classification: Main-belt Asteroid          SPK-ID: 2011415
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006908842357694 1.8001e-08  
a 2.258512185152456 5.6498e-09 au
q 1.80524937765695 4.1844e-08 au
i 6.500333827560522 4.9755e-07 deg
node 154.5828979375357 8.3888e-06 deg
peri 163.9746921630849 7.9699e-06 deg
M 95.20850364596481 3.4077e-06 deg
tp 2458872.627250449972
(2020-Jan-24.12725045)
1.1099e-05 TDB
period 1239.744196347451
3.39
4.6519e-06
1.274e-08
d
yr
n .2903824845969324 1.0896e-09 deg/d
Q 2.711774992647962 6.7836e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      17765 days (48.64 yr)  
   first obs. used      1972-07-13  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:37:41  

Additional Information
 Earth MOID = .791402 au 
 Jupiter MOID = 2.60396 au 
 T_jup = 3.586 
[ 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 14.29   n/a E2021B10  

11415 (1999 JG81)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JG81 = 1972 NV = 1972 RT2 = 1989 RZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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