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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 | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828097584418603 4.475e-08  
a 2.586127047384832 1.2973e-08 au
q 2.11335778655245 1.2023e-07 au
i 10.61502842216156 5.0376e-06 deg
node 271.638039067798 2.6449e-05 deg
peri 103.1531994996063 3.1284e-05 deg
M 17.38749433526082 1.6797e-05 deg
tp 2458927.131825686041
(2020-Mar-18.63182569)
7.0635e-05 TDB
period 1519.053996150672
4.16
1.1431e-05
3.13e-08
d
yr
n .2369896007069207 1.7833e-09 deg/d
Q 3.058896308217215 1.5345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      13386 days (36.65 yr)  
   first obs. used      1984-03-07  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:54:21  

Additional Information
 Earth MOID = 1.1451 au 
 Jupiter MOID = 2.52317 au 
 T_jup = 3.375 
[ show covariance matrix ]

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 14.6   n/a MPO347838  
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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