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JPL Small-Body Database Browser
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17623 (1995 WO42)
Classification: Main-belt Asteroid          SPK-ID: 2017623
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331320409081878 4.1377e-08  
a 3.101563214959831 1.8958e-08 au
q 2.688645774146468 1.2665e-07 au
i 18.46702305917007 4.4284e-06 deg
node 44.83081236902069 1.2673e-05 deg
peri 339.9087101317629 1.9988e-05 deg
M 187.5043588159972 1.6013e-05 deg
tp 2459956.471636969598
(2023-Jan-11.97163697)
9.2037e-05 TDB
period 1995.121656099978
5.46
1.8293e-05
5.008e-08
d
yr
n .1804401244903132 1.6544e-09 deg/d
Q 3.514480655773193 2.1482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1529  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1995-11-30  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:32:03  

Additional Information
 Earth MOID = 1.70102 au 
 Jupiter MOID = 1.93552 au 
 T_jup = 3.129 
[ 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 13.0   n/a MPO474000  

17623 (1995 WO42)          Discovered 1995-Nov-30 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 WO42 = 1998 HC41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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