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441922 (2010 HK45)
Classification: Main-belt Asteroid          SPK-ID: 2441922
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420703129866031 8.8619e-08  
a 3.119804716727547 6.3188e-08 au
q 2.676573084164984 2.974e-07 au
i 14.65574156102158 6.9075e-06 deg
node 260.9048370702255 3.9393e-05 deg
peri 83.40611453347113 6.3407e-05 deg
M 252.3556819737074 3.8801e-05 deg
tp 2459602.335986005854
(2022-Jan-22.83598601)		 0.00021732 TDB
period 2012.748642331376
5.51		 6.1149e-05
1.674e-07		 d
yr
n .1788598896199032 5.4339e-09 deg/d
Q 3.563036349290111 7.2165e-08 au
   Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      4982 days (13.64 yr)  
   first obs. used      2005-09-01  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60081  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:27:49  

Additional Information
 Earth MOID = 1.71891 au 
 Jupiter MOID = 1.9496 au 
 T_jup = 3.151 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457180.5 (2015-Jun-07.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411547474154185 8.8968e-08  
q 2.680738223023645 2.9889e-07 au
tp 2457591.241966335054
(2016-Jul-21.74196634)		 0.00022448 TDB
node 260.9175627683815 3.9389e-05 deg
peri 83.84877250750702 6.364e-05 deg
i 14.65367837628146 6.9069e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      4982 days (13.64 yr)  
   first obs. used      2005-09-01  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60081  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:27:49  

Additional Information
 Jupiter MOID = 1.9496 au 
 T_jup = 3.151 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.915380199467007E-15 -2.618435526712834E-14 7.195821954625155E-12 -6.569714544916163E-14 1.568952986630306E-12 -6.273367051507039E-14
q -2.618435526712834E-14 8.933808824870703E-14 -2.520126467415167E-11 2.453433960642295E-13 -5.661066563574346E-12 2.149261734133974E-13
tp 7.195821954625155E-12 -2.520126467415167E-11 5.039281161859628E-8 -2.969937964259986E-10 1.1358778889689E-8 -1.004832017951882E-10
node -6.569714544916163E-14 2.453433960642295E-13 -2.969937964259986E-10 1.551466690816146E-9 -1.566305428339225E-9 -5.836334642217343E-11
peri 1.568952986630306E-12 -5.661066563574346E-12 1.1358778889689E-8 -1.566305428339225E-9 4.050046588936928E-9 3.482965114575782E-11
i -6.273367051507039E-14 2.149261734133974E-13 -1.004832017951882E-10 -5.836334642217343E-11 3.482965114575782E-11 4.770517929778005E-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 16.0   n/a MPO472459  
diameter diameter 3.991 km 1.344 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441922 (2010 HK45)          Discovered 2010-Apr-23 by WISE at WISE
Reference: Last Updated: 2015-09-02

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