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525550 (2005 HW3)
Classification: Main-belt Asteroid          SPK-ID: 2525550
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495065687805658 1.4547e-07  
a 2.805058620997057 5.7273e-08 au
q 2.385683931343441 3.7495e-07 au
i 10.52309246082711 7.4786e-06 deg
node 66.2100893431498 5.9429e-05 deg
peri 153.7226235072211 8.7082e-05 deg
M 113.9669262595755 5.4231e-05 deg
tp 2458657.265086665229
(2019-Jun-22.76508667)
0.00026633 TDB
period 1715.976513704441
4.70
5.2554e-05
1.439e-07
d
yr
n .2097930811551925 6.4252e-09 deg/d
Q 3.224433310650673 6.5835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      6517 days (17.84 yr)  
   first obs. used      2002-11-07  
   last obs. used      2020-09-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57692  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 19:30:10  

Additional Information
 Earth MOID = 1.38054 au 
 Jupiter MOID = 1.77152 au 
 T_jup = 3.283 
[ 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 16.96   n/a E2021B25  

525550 (2005 HW3)          Discovered 2005-Apr-28 by Lowe, A. at Mayhill
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 2005 HW3 = 2010 EN148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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