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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .200690873102094 2.7214e-08  
a 2.258512187258716 5.954e-09 au
q 1.805249404486044 6.2375e-08 au
i 6.500332492070579 3.1005e-06 deg
node 154.5829152483273 2.9893e-05 deg
peri 163.9746802877678 3.107e-05 deg
M 95.20849685144765 9.2009e-06 deg
tp 2458872.627273389826
(2020-Jan-24.12727339)
3.1132e-05 TDB
period 1239.744198081706
3.39
4.9024e-06
1.342e-08
d
yr
n .2903824841907218 1.1483e-09 deg/d
Q 2.711774970031387 7.1489e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2151  
   data-arc span      17722 days (48.52 yr)  
   first obs. used      1972-07-13  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:00:28  

Additional Information
 Earth MOID = .791402 au 
 Jupiter MOID = 2.60396 au 
 T_jup = 3.586 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457098.5 (2015-Mar-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003271330887998 2.7156e-08  
q 1.806843294700989 6.2223e-08 au
tp 2457633.433342763366
(2016-Sep-01.93334276)
2.9635e-05 TDB
node 154.6179719152123 2.9898e-05 deg
peri 163.9686223391696 3.1085e-05 deg
i 6.498527318578892 3.0999e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2151  
   data-arc span      17722 days (48.52 yr)  
   first obs. used      1972-07-13  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:00:28  

Additional Information
 Jupiter MOID = 2.60396 au 
 T_jup = 3.586 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.374339557430346E-16 -1.684824499432823E-15 -2.07887383534382E-14 -1.031806637976019E-15 5.648166453302381E-15 -3.116752585441655E-17
q -1.684824499432823E-15 3.871675245942278E-15 8.256415464952444E-14 1.809445630502901E-15 -5.444732123979829E-15 1.620480900413579E-16
tp -2.07887383534382E-14 8.256415464952444E-14 8.782289390490856E-10 -5.695337127014687E-12 2.627450668977832E-10 7.219969702794429E-13
node -1.031806637976019E-15 1.809445630502901E-15 -5.695337127014687E-12 8.939066390772629E-10 -8.893332340802825E-10 6.081415592909348E-12
peri 5.648166453302381E-15 -5.444732123979829E-15 2.627450668977832E-10 -8.893332340802825E-10 9.662547049294026E-10 -5.864158507422838E-12
i -3.116752585441655E-17 1.620480900413579E-16 7.219969702794429E-13 6.081415592909348E-12 -5.864158507422838E-12 9.609482917944853E-12

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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