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173702 (2001 QN46)
Classification: Main-belt Asteroid          SPK-ID: 2173702
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026200503317545 6.3234e-08  
a 2.794306761237261 1.6721e-08 au
q 2.507554860756731 1.7518e-07 au
i 8.808499683383426 5.9082e-06 deg
node 314.7594282661835 3.4791e-05 deg
peri 48.34455538270587 4.4505e-05 deg
M 18.9658983277683 2.3882e-05 deg
tp 2459110.616398305719
(2020-Sep-18.11639831)
0.00011339 TDB
period 1706.119902718512
4.67
1.5314e-05
4.193e-08
d
yr
n .2110050995984398 1.8939e-09 deg/d
Q 3.08105866171779 1.8437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2001-08-15  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:29:38  

Additional Information
 Earth MOID = 1.51199 au 
 Jupiter MOID = 2.36375 au 
 T_jup = 3.303 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457734.5 (2016-Dec-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053727958657431 6.3276e-08  
q 2.499724857285161 1.7605e-07 au
tp 2457403.656287975291
(2016-Jan-16.15628798)
0.00011352 TDB
node 314.9102122473628 3.4854e-05 deg
peri 48.21433414707106 4.3946e-05 deg
i 8.80001818059122 5.9074e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2001-08-15  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:29:38  

Additional Information
 Jupiter MOID = 2.36375 au 
 T_jup = 3.303 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.003863357964896E-15 -1.110035377580018E-14 -1.606444452163775E-12 9.111975612777399E-15 -3.77138034576598E-13 -1.36115038558144E-14
q -1.110035377580018E-14 3.099468057248897E-14 3.850131708562725E-12 -2.091233856103216E-14 9.078833726502415E-13 3.93124858291319E-14
tp -1.606444452163775E-12 3.850131708562725E-12 1.288778873594339E-8 -9.076740169343466E-12 3.073726140991398E-9 1.604333928752104E-12
node 9.111975612777399E-15 -2.091233856103216E-14 -9.076740169343466E-12 1.214793977213578E-9 -1.202399827376762E-9 1.114833574540061E-10
peri -3.77138034576598E-13 9.078833726502415E-13 3.073726140991398E-9 -1.202399827376762E-9 1.931228013641941E-9 -1.099143067164842E-10
i -1.36115038558144E-14 3.93124858291319E-14 1.604333928752104E-12 1.114833574540061E-10 -1.099143067164842E-10 3.489744756091582E-11

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 15.64   n/a E2021B55  
diameter diameter 4.721 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173702 (2001 QN46)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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