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192564 (1998 WL22)
Classification: Main-belt Asteroid          SPK-ID: 2192564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2474290249232853 4.1211e-08  
a 2.23547628559309 8.3656e-09 au
q 1.682354568009664 9.1756e-08 au
i 3.884321928325133 5.2937e-06 deg
node 233.8196934291769 6.4849e-05 deg
peri 128.9867801259002 6.5685e-05 deg
M 309.3994285491397 1.1379e-05 deg
tp 2459568.095718816228
(2021-Dec-19.59571882)
3.9081e-05 TDB
period 1220.825318817458
3.34
6.8529e-06
1.876e-08
d
yr
n .294882481916996 1.6553e-09 deg/d
Q 2.788598003176516 1.0436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      8242 days (22.57 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:25:44  

Additional Information
 Earth MOID = .682728 au 
 Jupiter MOID = 2.6867 au 
 T_jup = 3.595 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457152.5 (2015-May-10.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2473219426503101 4.1194e-08  
q 1.682493713184445 9.1619e-08 au
tp 2457125.046556173149
(2015-Apr-12.54655617)
3.381e-05 TDB
node 233.9542400517599 6.5025e-05 deg
peri 128.5827225500726 6.5845e-05 deg
i 3.877759357783061 5.2884e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      8242 days (22.57 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:25:44  

Additional Information
 Jupiter MOID = 2.6867 au 
 T_jup = 3.595 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.696974849035701E-15 -3.765108464846322E-15 3.883284829419138E-13 -7.026522199424189E-15 1.063438930446891E-13 5.846012267041991E-18
q -3.765108464846322E-15 8.394072360932664E-15 -8.223200889372086E-13 1.526834827327213E-14 -2.271845228295145E-13 7.725420743004985E-17
tp 3.883284829419138E-13 -8.223200889372086E-13 1.143143856413603E-9 -1.36388393825649E-11 3.638490000307735E-10 3.594031493439868E-13
node -7.026522199424189E-15 1.526834827327213E-14 -1.36388393825649E-11 4.228198956885506E-9 -4.221909562293371E-9 -9.335787000044835E-14
peri 1.063438930446891E-13 -2.271845228295145E-13 3.638490000307735E-10 -4.221909562293371E-9 4.335532696751731E-9 1.698454068582002E-13
i 5.846012267041991E-18 7.725420743004985E-17 3.594031493439868E-13 -9.335787000044835E-14 1.698454068582002E-13 2.796674897946457E-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 17.34   n/a E2021B55  

192564 (1998 WL22)          Discovered 1998-Nov-18 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1998 WL22 = 2005 YL283 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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