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102889 (1999 XL5)
Classification: Main-belt Asteroid          SPK-ID: 2102889
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2200631286338206 1.2743e-07  
a 2.531602322447361 1.1873e-08 au
q 1.974489994912948 3.3029e-07 au
i 4.253388131915139 6.8156e-06 deg
node 75.05180833657049 8.9071e-05 deg
peri 358.1920579353498 9.7512e-05 deg
M 72.50786586594062 3.6532e-05 deg
tp 2458904.170917130235
(2020-Feb-24.67091713)
0.00014752 TDB
period 1471.267545377115
4.03
1.035e-05
2.834e-08
d
yr
n .2446869715376783 1.7214e-09 deg/d
Q 3.088714649981773 1.4486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      10685 days (29.25 yr)  
   first obs. used      1991-12-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:06  

Additional Information
 Earth MOID = .988886 au 
 Jupiter MOID = 2.19922 au 
 T_jup = 3.412 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457309.5 (2015-Oct-14.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2177836115487553 1.2672e-07  
q 1.981156387398592 3.2765e-07 au
tp 2457431.020823889596
(2016-Feb-12.52082389)
0.00014263 TDB
node 75.11455110020906 8.9182e-05 deg
peri 357.935597172221 9.7848e-05 deg
i 4.24969269873668 6.8105e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      10685 days (29.25 yr)  
   first obs. used      1991-12-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:06  

Additional Information
 Jupiter MOID = 2.19922 au 
 T_jup = 3.412 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.605822308767606E-14 -4.151507310474921E-14 -1.737015479543239E-11 4.844024585163256E-14 -4.915035095380681E-12 -4.017911789915199E-14
q -4.151507310474921E-14 1.073559328087799E-13 4.495673472758917E-11 -1.233817821770109E-13 1.271895385194666E-11 1.038689619117213E-13
tp -1.737015479543239E-11 4.495673472758917E-11 2.034369072950005E-8 -5.549879125827921E-11 5.804970873618942E-9 4.549395191398331E-11
node 4.844024585163256E-14 -1.233817821770109E-13 -5.549879125827921E-11 7.953430325066191E-9 -7.946812581637887E-9 -5.005400071876893E-10
peri -4.915035095380681E-12 1.271895385194666E-11 5.804970873618942E-9 -7.946812581637887E-9 9.574301660919851E-9 5.119630173673852E-10
i -4.017911789915199E-14 1.038689619117213E-13 4.549395191398331E-11 -5.005400071876893E-10 5.119630173673852E-10 4.638240575882308E-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 15.91   n/a E2021B55  

102889 (1999 XL5)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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