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118628 (2000 HW40)
Classification: Main-belt Asteroid          SPK-ID: 2118628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1069495545852478 3.0227e-08  
a 2.350222341672037 9.3169e-09 au
q 2.098867109053915 7.1747e-08 au
i 4.20553892373898 4.0134e-06 deg
node 288.977246151387 4.5291e-05 deg
peri 318.3721349726548 4.9877e-05 deg
M 228.4916243300823 2.2521e-05 deg
tp 2459681.242774264194
(2022-Apr-11.74277426)
8.3262e-05 TDB
period 1316.018069978326
3.60
7.8256e-06
2.143e-08
d
yr
n .2735524748576811 1.6267e-09 deg/d
Q 2.60157757429016 1.0313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      7718 days (21.13 yr)  
   first obs. used      2000-03-14  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:01:22  

Additional Information
 Earth MOID = 1.08559 au 
 Jupiter MOID = 2.42857 au 
 T_jup = 3.547 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.71   n/a MPCxxxxx  

118628 (2000 HW40)          Discovered 2000-Apr-28 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 2000 HW40 = 2001 SC148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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