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190432 (1999 WO17)
Classification: Main-belt Asteroid          SPK-ID: 2190432
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1257783122822573 6.2634e-08  
a 2.763771900695446 2.3307e-08 au
q 2.416149335492846 1.7437e-07 au
i 4.085222232484155 6.3224e-06 deg
node 225.5220354820119 7.9948e-05 deg
peri 163.7142711741205 8.2838e-05 deg
M 208.9696434051566 2.5484e-05 deg
tp 2459904.566157448443
(2022-Nov-21.06615745)
0.00012447 TDB
period 1678.230935793827
4.59
2.1229e-05
5.812e-08
d
yr
n .214511598089279 2.7134e-09 deg/d
Q 3.111394465898046 2.6238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      7534 days (20.63 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53731  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:38  

Additional Information
 Earth MOID = 1.42045 au 
 Jupiter MOID = 2.32258 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457318.5 (2015-Oct-23.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1247757609996827 6.2392e-08  
q 2.420183053528638 1.7339e-07 au
tp 2456548.945711264538
(2013-Sep-13.44571126)
0.00010325 TDB
node 225.5418877289351 7.9977e-05 deg
peri 164.1796700920444 8.2933e-05 deg
i 4.083384770776249 6.3206e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      7534 days (20.63 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53731  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:38  

Additional Information
 Jupiter MOID = 2.32258 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.892712261490505E-15 -1.07433703042513E-14 -1.364518330192492E-12 7.853188127794266E-15 -3.854874001122702E-13 1.808675990373138E-15
q -1.07433703042513E-14 3.006450676081165E-14 4.545492187858037E-12 -2.525591069509599E-14 1.256641089058026E-12 -4.397510107302332E-15
tp -1.364518330192492E-12 4.545492187858037E-12 1.066002855148155E-8 -1.889515734186807E-12 2.297509466512584E-9 -2.123032926016781E-12
node 7.853188127794266E-15 -2.525591069509599E-14 -1.889515734186807E-12 6.396272706282083E-9 -6.380632069591933E-9 -2.175388247966713E-10
peri -3.854874001122702E-13 1.256641089058026E-12 2.297509466512584E-9 -6.380632069591933E-9 6.877936596792252E-9 2.165972058363879E-10
i 1.808675990373138E-15 -4.397510107302332E-15 -2.123032926016781E-12 -2.175388247966713E-10 2.165972058363879E-10 3.994944521068835E-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 16.00   n/a E2021B55  
diameter diameter 2.975 km 0.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190432 (1999 WO17)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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