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JPL Small-Body Database Browser
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39125 (2000 WC44)
Classification: Main-belt Asteroid          SPK-ID: 2039125
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961176992652692 5.0008e-08  
a 2.462967895772689 1.2471e-08 au
q 1.979936298689528 1.1839e-07 au
i 4.175433828212725 3.6963e-06 deg
node 133.1704092527706 6.4537e-05 deg
peri 201.5260069115365 6.5311e-05 deg
M 92.1545686158413 1.0368e-05 deg
tp 2458639.089369252199
(2019-Jun-04.58936925)
4.0009e-05 TDB
period 1411.843482351703
3.87
1.0723e-05
2.936e-08
d
yr
n .2549857717941576 1.9366e-09 deg/d
Q 2.94599949285585 1.4917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1146  
   data-arc span      8008 days (21.92 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:06:27  

Additional Information
 Earth MOID = .970591 au 
 Jupiter MOID = 2.42682 au 
 T_jup = 3.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457214.5 (2015-Jul-11.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976280484738197 5.0117e-08  
q 1.975696710254634 1.1884e-07 au
tp 2457227.888750123352
(2015-Jul-24.38875012)
3.8861e-05 TDB
node 133.2484894376484 6.4544e-05 deg
peri 201.5112111645019 6.5301e-05 deg
i 4.176157103784949 3.6992e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1146  
   data-arc span      8008 days (21.92 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:06:27  

Additional Information
 Jupiter MOID = 2.42682 au 
 T_jup = 3.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.511685846665613E-15 -5.94022669496231E-15 7.121701563577246E-13 1.423168634189573E-14 1.217421039125066E-13 -3.946028630661567E-15
q -5.94022669496231E-15 1.412346872702555E-14 -1.781791396469309E-12 -3.097094503563027E-14 -3.14469639606713E-13 9.561335587193965E-15
tp 7.121701563577246E-13 -1.781791396469309E-12 1.510166407161787E-9 1.488316421145681E-12 4.102729080049922E-10 -2.70018320318323E-12
node 1.423168634189573E-14 -3.097094503563027E-14 1.488316421145681E-12 4.165901001265776E-9 -4.154061586097756E-9 8.826135076067345E-11
peri 1.217421039125066E-13 -3.14469639606713E-13 4.102729080049922E-10 -4.154061586097756E-9 4.264220272390435E-9 -8.871776622829212E-11
i -3.946028630661567E-15 9.561335587193965E-15 -2.70018320318323E-12 8.826135076067345E-11 -8.871776622829212E-11 1.368410521924735E-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 15.1   n/a MPO395372  

39125 (2000 WC44)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 WC44 = 1999 JZ121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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