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JPL Small-Body Database Browser
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48164 (2001 HJ9)
Classification: Main-belt Asteroid          SPK-ID: 2048164
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709970795022819 4.4486e-08  
a 3.064908506558306 2.2395e-08 au
q 2.540818102995135 1.3903e-07 au
i 13.76323734585172 5.6002e-06 deg
node 52.08079598273568 2.0959e-05 deg
peri 278.6922467958598 2.6084e-05 deg
M 42.41841242047754 1.5504e-05 deg
tp 2458369.571992611794
(2018-Sep-08.07199261)		 8.4196e-05 TDB
period 1959.858417983158
5.37		 2.1481e-05
5.881e-08		 d
yr
n .1836867381320673 2.0133e-09 deg/d
Q 3.588998910121477 2.6225e-08 au
   Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1992-11-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:32:36  

Additional Information
 Earth MOID = 1.57585 au 
 Jupiter MOID = 1.98247 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456712.5 (2014-Feb-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1740117441857337 4.4779e-08  
q 2.528972304264651 1.401e-07 au
tp 2456399.230927986698
(2013-Apr-16.73092799)		 8.1427e-05 TDB
node 52.48623503647468 2.1075e-05 deg
peri 276.6929627086845 2.582e-05 deg
i 13.73394093670746 5.586e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1992-11-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:32:36  

Additional Information
 Jupiter MOID = 1.98247 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.005117023288399E-15 -6.220217504994481E-15 7.952186538925045E-13 -1.560123934723774E-15 1.601457225352632E-13 -3.223703054033889E-15
q -6.220217504994481E-15 1.962799265209665E-14 -2.637510209049085E-12 3.633950209896029E-15 -5.168817394409466E-13 1.259885616970028E-14
tp 7.952186538925045E-13 -2.637510209049085E-12 6.630279368221357E-9 -2.099278979633686E-12 1.246279285946931E-9 1.759581196732103E-12
node -1.560123934723774E-15 3.633950209896029E-15 -2.099278979633686E-12 4.441649351231432E-10 -4.31476087591703E-10 -2.685878386378222E-11
peri 1.601457225352632E-13 -5.168817394409466E-13 1.246279285946931E-9 -4.31476087591703E-10 6.666909546027247E-10 2.619744961448706E-11
i -3.223703054033889E-15 1.259885616970028E-14 1.759581196732103E-12 -2.685878386378222E-11 2.619744961448706E-11 3.120296663143618E-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 14.0   n/a MPO459182  
diameter diameter 8.566 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48164 (2001 HJ9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HJ9 = 1999 BM18 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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