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175242 (2005 HP3)
Classification: Main-belt Asteroid          SPK-ID: 2175242
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129955016596017 5.3319e-08  
a 2.62989755136324 2.4519e-08 au
q 2.069741203097269 1.4054e-07 au
i 13.3854705360293 5.4015e-06 deg
node 229.6111261570125 2.3846e-05 deg
peri 350.7366991356264 3.0475e-05 deg
M 247.1836601381972 2.8199e-05 deg
tp 2459688.675722662096
(2022-Apr-19.17572266)		 0.00012785 TDB
period 1557.781970002181
4.26		 2.1786e-05
5.965e-08		 d
yr
n .2310978088926629 3.2319e-09 deg/d
Q 3.190053899629211 2.9742e-08 au
   Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1998-11-19  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5352  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:35  

Additional Information
 Earth MOID = 1.0612 au 
 Jupiter MOID = 1.80391 au 
 T_jup = 3.330 
[ 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 MPO493977  
diameter diameter 4.169 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175242 (2005 HP3)          Discovered 2005-Apr-17 by Siding Spring Survey at Siding Spring
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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