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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458246.5 (2018-May-08.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482359025069494 1.4494e-07  
q 2.389885314114469 3.7236e-07 au
tp 2458658.285367223810
(2019-Jun-23.78536722)
0.00026952 TDB
node 66.26172539049095 5.9329e-05 deg
peri 154.0388847767482 8.7446e-05 deg
i 10.53062317636995 7.4847e-06 deg
  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
 Jupiter MOID = 1.77152 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.100862630651835E-14 -5.374396518553672E-14 -3.095059077050667E-11 -4.141337783495977E-13 -7.44721085108741E-12 -2.211878255780305E-14
q -5.374396518553672E-14 1.386521745152421E-13 8.004105844615208E-11 1.057901357010391E-12 1.917167494960973E-11 5.768553117637941E-14
tp -3.095059077050667E-11 8.004105844615208E-11 7.264251651374475E-8 7.417030034676577E-10 1.748365310158884E-8 3.786259185367066E-11
node -4.141337783495977E-13 1.057901357010391E-12 7.417030034676577E-10 3.519944733225199E-9 -3.27493505872389E-9 -1.53945229068117E-10
peri -7.44721085108741E-12 1.917167494960973E-11 1.748365310158884E-8 -3.27493505872389E-9 7.646880870639739E-9 1.609929190322488E-10
i -2.211878255780305E-14 5.768553117637941E-14 3.786259185367066E-11 -1.53945229068117E-10 1.609929190322488E-10 5.602055020478165E-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 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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