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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621563892221129 4.3088e-08  
a 2.313833053619204 8.369e-09 au
q 1.938630240381538 1.0177e-07 au
i 3.883857890767396 4.9315e-06 deg
node 306.4087095851777 5.4668e-05 deg
peri 60.53031406130833 5.6202e-05 deg
M 358.8905160905067 1.4101e-05 deg
tp 2459004.462004508838
(2020-Jun-03.96200451)
5.0365e-05 TDB
period 1285.57215744854
3.52
6.9747e-06
1.91e-08
d
yr
n .2800309557998578 1.5193e-09 deg/d
Q 2.68903586685687 9.7261e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1208  
   data-arc span      14213 days (38.91 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 17:56:03  

Additional Information
 Earth MOID = .94052 au 
 Jupiter MOID = 2.78482 au 
 T_jup = 3.562 
[ 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 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2085-Mar-12 13:56 < 00:01 Juno 0.0194369552742611 0.019435842750743 0.0194380705649144 5.95509552801764 5.95509542291128 2482662.080864319 0.560847745008564 473.524307088796 34.9283856599163 -84.756981990888 82862.1599315314 T 19 CATAB v2.0f-lin.ifort 2020-Oct-22 17:56:23 2020-Oct-22 17:56

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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