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150251 (1999 JR99)
Classification: Main-belt Asteroid          SPK-ID: 2150251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130705665439677 3.6596e-08  
a 2.679558589084161 1.7448e-08 au
q 2.108623522420244 9.8103e-08 au
i 16.09620349945399 5.5776e-06 deg
node 170.2513654655517 1.5654e-05 deg
peri 79.21463959433289 2.1288e-05 deg
M 327.2648161905063 1.6793e-05 deg
tp 2459346.181899710380
(2021-May-11.68189971)
7.5644e-05 TDB
period 1602.113621873928
4.39
1.5648e-05
4.284e-08
d
yr
n .2247031640483292 2.1947e-09 deg/d
Q 3.250493655748079 2.1165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:44  

Additional Information
 Earth MOID = 1.16426 au 
 Jupiter MOID = 1.98722 au 
 T_jup = 3.289 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457362.5 (2015-Dec-06.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138531341652234 3.6536e-08  
q 2.1073145159683 9.8186e-08 au
tp 2457742.148375520034
(2016-Dec-19.64837552)
6.64e-05 TDB
node 170.2855863722226 1.5654e-05 deg
peri 78.9548596691475 2.1261e-05 deg
i 16.09511945302384 5.5781e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:44  

Additional Information
 Jupiter MOID = 1.98722 au 
 T_jup = 3.289 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.334865042638013E-15 -3.552287323856347E-15 -7.703785209160485E-14 7.925735952239136E-15 -1.084734037579133E-14 -3.146857628271011E-16
q -3.552287323856347E-15 9.640546350793414E-15 6.717369610708054E-13 -2.14269289578411E-14 1.156705675700903E-13 1.353379880201024E-15
tp -7.703785209160485E-14 6.717369610708054E-13 4.408996860992554E-9 -5.465593145687615E-12 9.68659099014991E-10 6.651569391906233E-12
node 7.925735952239136E-15 -2.14269289578411E-14 -5.465593145687615E-12 2.450504973946876E-10 -2.361355758491185E-10 -8.91051872619987E-12
peri -1.084734037579133E-14 1.156705675700903E-13 9.68659099014991E-10 -2.361355758491185E-10 4.520158245488711E-10 1.004811509421476E-11
i -3.146857628271011E-16 1.353379880201024E-15 6.651569391906233E-12 -8.91051872619987E-12 1.004811509421476E-11 3.111528079625164E-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 15.5   n/a MPO469594  

150251 (1999 JR99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

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Alternate Designations
 1999 JR99 = 2003 DT22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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