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227747 (2006 HP54)
Classification: Main-belt Asteroid          SPK-ID: 2227747
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1079005726138106 7.1312e-08  
a 3.120411620016006 3.3577e-08 au
q 2.783717419425491 2.3543e-07 au
i 11.69860258506518 1.1024e-05 deg
node 213.4705485846533 2.4676e-05 deg
peri 306.2032724413974 5.3062e-05 deg
M 270.1488808719847 4.6529e-05 deg
tp 2459703.001365918367
(2022-May-03.50136592)		 0.00026186 TDB
period 2013.335988312781
5.51		 3.2497e-05
8.897e-08		 d
yr
n .1788077112264246 2.8861e-09 deg/d
Q 3.457105820606521 3.72e-08 au
   Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      7645 days (20.93 yr)  
   first obs. used      2000-03-04  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:00  

Additional Information
 Earth MOID = 1.80914 au 
 Jupiter MOID = 1.60994 au 
 T_jup = 3.175 
[ 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 15.68   n/a E2021B55  
diameter diameter 4.714 km 0.995 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227747 (2006 HP54)          Discovered 2006-Apr-21 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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