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101815 (1999 JB12)
Classification: Inner Main-belt Asteroid          SPK-ID: 2101815
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06360889265175011 4.6913e-08  
a 1.962003345210893 6.9988e-09 au
q 1.837202485042998 9.3709e-08 au
i 19.812324711727 5.0692e-06 deg
node 221.5648798877069 1.1765e-05 deg
peri 309.2628500842721 3.6029e-05 deg
M 295.9391218105746 3.6079e-05 deg
tp 2459179.123431947045
(2020-Nov-25.62343195)
0.0001009 TDB
period 1003.801966479305
2.75
5.3711e-06
1.471e-08
d
yr
n .3586364761394618 1.919e-09 deg/d
Q 2.086804205378787 7.444e-09 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      7567 days (20.72 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:27:02  

Additional Information
 Earth MOID = .862099 au 
 Jupiter MOID = 2.92238 au 
 T_jup = 3.805 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457222.5 (2015-Jul-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06355750649596922 4.6983e-08  
q 1.837203405168189 9.3845e-08 au
tp 2457171.839354899425
(2015-May-29.33935490)
9.7974e-05 TDB
node 221.5769119137774 1.1764e-05 deg
peri 309.3328655675474 3.6012e-05 deg
i 19.81380345511807 5.07e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      7567 days (20.72 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:27:02  

Additional Information
 Jupiter MOID = 2.92238 au 
 T_jup = 3.805 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.207357664998682E-15 -4.398783981100223E-15 7.788573424218558E-13 -7.018793855331016E-15 2.999250630541922E-13 7.717267300815861E-15
q -4.398783981100223E-15 8.806793795752311E-15 -1.385240549498446E-12 1.362466338715643E-14 -5.409438178805761E-13 -1.56781768188228E-14
tp 7.788573424218558E-13 -1.385240549498446E-12 9.598896930456169E-9 -3.980085132833659E-13 3.343561531837742E-9 -7.837332978680083E-12
node -7.018793855331016E-15 1.362466338715643E-14 -3.980085132833659E-13 1.38382949567932E-10 -1.29989789200507E-10 -1.177693517455075E-11
peri 2.999250630541922E-13 -5.409438178805761E-13 3.343561531837742E-9 -1.29989789200507E-10 1.296855605251404E-9 8.94371893089512E-12
i 7.717267300815861E-15 -1.56781768188228E-14 -7.837332978680083E-12 -1.177693517455075E-11 8.94371893089512E-12 2.570536551724831E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO395896  

101815 (1999 JB12)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 JB12 = 2000 UP29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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