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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .305616315238211 3.4137e-08  
a 2.255478148487798 5.1191e-09 au
q 1.566167227646655 7.7332e-08 au
i 3.929206506198698 4.0498e-06 deg
node 160.6179402590221 4.8115e-05 deg
peri 325.8830652838581 4.8491e-05 deg
M 149.7590227581039 4.7073e-06 deg
tp 2458881.808661900669
(2020-Feb-02.30866190)
1.6029e-05 TDB
period 1237.246867022125
3.39
4.2121e-06
1.153e-08
d
yr
n .290968609091303 9.9058e-10 deg/d
Q 2.944789069328941 6.6835e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      13916 days (38.10 yr)  
   first obs. used      1983-05-07  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:47:58  

Additional Information
 Earth MOID = .583787 au 
 Jupiter MOID = 2.13679 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 15.85   n/a E2021B10  

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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