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45015 (1999 WQ)
Classification: Main-belt Asteroid          SPK-ID: 2045015
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1829602636108327 3.24e-08  
a 2.586723519526419 1.0581e-08 au
q 2.113455902505525 8.4089e-08 au
i 10.61443391434135 5.0175e-06 deg
node 271.63913200 2.1754e-05 deg
peri 103.1914477519738 2.7453e-05 deg
M 64.73396821255562 1.601e-05 deg
tp 2458927.254402019420
(2020-Mar-18.75440202)
6.7009e-05 TDB
period 1519.579565244843
4.16
9.3236e-06
2.553e-08
d
yr
n .236907634344237 1.4536e-09 deg/d
Q 3.059991136547314 1.2517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1196  
   data-arc span      13527 days (37.03 yr)  
   first obs. used      1984-03-07  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4413  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:31:49  

Additional Information
 Earth MOID = 1.14389 au 
 Jupiter MOID = 2.52315 au 
 T_jup = 3.374 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.63   n/a E2021B10  
diameter diameter 3.325 km 0.812 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.253   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

45015 (1999 WQ)          Discovered 1999-Nov-16 by Kusnirak, P. at Ondrejov
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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