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17258 Whalen (2000 HK90)
Classification: Main-belt Asteroid          SPK-ID: 2017258
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840743334816145 3.5312e-08  
a 2.250797438649204 6.2291e-09 au
q 1.836483400327727 7.8362e-08 au
i 4.653297864315507 3.7699e-06 deg
node 70.54915450487907 4.2316e-05 deg
peri 326.6701079938689 4.3492e-05 deg
M 178.2951870368829 9.5685e-06 deg
tp 2458389.642142875688
(2018-Sep-28.14214288)
3.2364e-05 TDB
period 1233.397447342541
3.38
5.1201e-06
1.402e-08
d
yr
n .2918767188756961 1.2116e-09 deg/d
Q 2.665111476970682 7.3757e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      23779 days (65.10 yr)  
   first obs. used      1954-12-22  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:59:33  

Additional Information
 Earth MOID = .84616 au 
 Jupiter MOID = 2.75103 au 
 T_jup = 3.600 
[ 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 15.6   n/a MPO467889  

17258 Whalen           Discovered 2000 Apr. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Patrice Whalen for mentoring a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. Whalen is a teacher at the Humanities and Sciences Institute, Phoenix, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020227/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 2000 HK90 = 1984 UX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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