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51157 (2000 HB57)
Classification: Mars-crossing Asteroid          SPK-ID: 2051157
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3061101844305616 3.4796e-08  
a 2.254622122876563 5.4074e-09 au
q 1.564459329021594 7.9059e-08 au
i 3.928691892782487 4.2186e-06 deg
node 160.6360395070103 4.9499e-05 deg
peri 325.8049341062281 4.9943e-05 deg
M 34.52661931918573 4.8786e-06 deg
tp 2458881.906570390089
(2020-Feb-02.40657039)
1.677e-05 TDB
period 1236.542572120401
3.39
4.4485e-06
1.218e-08
d
yr
n .2911343354581625 1.0474e-09 deg/d
Q 2.944784916731532 7.0626e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      13507 days (36.98 yr)  
   first obs. used      1983-05-07  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:08:00  

Additional Information
 Earth MOID = .581557 au 
 Jupiter MOID = 2.13754 au 
 T_jup = 3.558 
[ 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 15.8   n/a MPO259675  

51157 (2000 HB57)          Discovered 2000-Apr-24 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 HB57 = 1995 UE36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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