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102015 (1999 RK87)
Classification: Main-belt Asteroid          SPK-ID: 2102015
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2241861451907995 5.2714e-08  
a 2.250869496771399 8.3677e-09 au
q 1.746255740962664 1.1761e-07 au
i .6216414295428287 5.6143e-06 deg
node 336.8331737973431 0.00042583 deg
peri 338.5770789289315 0.000426 deg
M 132.182823506252 1.6036e-05 deg
tp 2458747.606149082748
(2019-Sep-21.10614908)
5.3529e-05 TDB
period 1233.456677693824
3.38
6.8781e-06
1.883e-08
d
yr
n .2918627030120644 1.6275e-09 deg/d
Q 2.755483252580134 1.0244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      7822 days (21.42 yr)  
   first obs. used      1999-09-04  
   last obs. used      2021-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:54  

Additional Information
 Earth MOID = .730598 au 
 Jupiter MOID = 2.53814 au 
 T_jup = 3.594 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456893.5 (2014-Aug-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236724252236011 5.2531e-08  
q 1.748171986361201 1.1709e-07 au
tp 2456280.661043734803
(2012-Dec-19.16104373)
4.7761e-05 TDB
node 336.9361419030114 0.00042524 deg
peri 338.445278643482 0.00042542 deg
i .6224090141051799 5.6125e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      7822 days (21.42 yr)  
   first obs. used      1999-09-04  
   last obs. used      2021-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:54  

Additional Information
 Jupiter MOID = 2.53814 au 
 T_jup = 3.594 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.759539872109494E-15 -6.141852873289468E-15 1.220408299394259E-12 2.284912211168491E-14 2.369171833177457E-13 -4.528196317724075E-16
q -6.141852873289468E-15 1.371090137002859E-14 -2.647435938641013E-12 -5.173968900810911E-14 -5.056866922743181E-13 9.703988201950863E-16
tp 1.220408299394259E-12 -2.647435938641013E-12 2.281126160845863E-9 1.938207278875755E-11 5.959133605500945E-10 -6.919203873731302E-13
node 2.284912211168491E-14 -5.173968900810911E-14 1.938207278875755E-11 1.808326778734005E-7 -1.808170796566759E-7 4.236321156528574E-10
peri 2.369171833177457E-13 -5.056866922743181E-13 5.959133605500945E-10 -1.808170796566759E-7 1.809825362845861E-7 -4.238023881362144E-10
i -4.528196317724075E-16 9.703988201950863E-16 -6.919203873731302E-13 4.236321156528574E-10 -4.238023881362144E-10 3.149970555582015E-11

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 16.9   n/a MPO436477  

102015 (1999 RK87)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RK87 = 1999 TY50 = 1999 VB155 = 2002 LZ21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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