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46258 (2001 HE45)
Classification: Main-belt Asteroid          SPK-ID: 2046258
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627560359375946 5.2595e-08  
a 2.314773496416002 8.9454e-09 au
q 1.938030138045927 1.2389e-07 au
i 3.881805442705065 6.0164e-06 deg
node 306.4348154366407 6.0161e-05 deg
peri 60.41531648321509 6.204e-05 deg
M 247.0542042670162 1.564e-05 deg
tp 2459004.079174173959
(2020-Jun-03.57917417)
5.6917e-05 TDB
period 1286.356006080149
3.52
7.4566e-06
2.042e-08
d
yr
n .2798603172826244 1.6223e-09 deg/d
Q 2.691516854786076 1.0401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      13709 days (37.53 yr)  
   first obs. used      1981-10-23  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50897  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:16  

Additional Information
 Earth MOID = .939029 au 
 Jupiter MOID = 2.77865 au 
 T_jup = 3.561 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456368.5 (2013-Mar-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621086768971403 5.2284e-08  
q 1.938822375239259 1.2287e-07 au
tp 2456433.182419711639
(2013-May-20.68241971)
5.2467e-05 TDB
node 306.5022625270722 6.0164e-05 deg
peri 60.56857081744327 6.2068e-05 deg
i 3.881815444602839 6.0147e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      13709 days (37.53 yr)  
   first obs. used      1981-10-23  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50897  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:16  

Additional Information
 Jupiter MOID = 2.77865 au 
 T_jup = 3.561 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.733582723133154E-15 -6.412931571984828E-15 -1.616495218378939E-12 8.955293799615395E-15 -4.888721240555785E-13 -1.592380223371114E-15
q -6.412931571984828E-15 1.509777055582104E-14 3.809817280339832E-12 -2.110310317268757E-14 1.151004613304346E-12 3.827021578464176E-15
tp -1.616495218378939E-12 3.809817280339832E-12 2.752748300159793E-9 -1.04613343035241E-11 8.128952865773445E-10 1.410129172087854E-12
node 8.955293799615395E-15 -2.110310317268757E-14 -1.04613343035241E-11 3.619763406208901E-9 -3.614299237181155E-9 1.631519649680832E-10
peri -4.888721240555785E-13 1.151004613304346E-12 8.128952865773445E-10 -3.614299237181155E-9 3.852379340288593E-9 -1.624046541456443E-10
i -1.592380223371114E-15 3.827021578464176E-15 1.410129172087854E-12 1.631519649680832E-10 -1.624046541456443E-10 3.617653710477902E-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 14.9   n/a MPO337628  

46258 (2001 HE45)          Discovered 2001-Apr-16 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HE45 = 1981 UY13 = 2000 AT17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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