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112911 (2002 QB57)
Classification: Main-belt Asteroid          SPK-ID: 2112911
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04523124490634992 3.925e-08  
a 2.957829700679621 2.1921e-08 au
q 2.824043381096905 1.1461e-07 au
i 1.691191288169769 4.4091e-06 deg
node 204.5306865023084 0.00017167 deg
peri 222.4314532390158 0.00018539 deg
M 86.24654739885381 6.7226e-05 deg
tp 2458555.359209262329
(2019-Mar-12.85920926)
0.00034699 TDB
period 1858.053330813
5.09
2.0656e-05
5.655e-08
d
yr
n .1937511663577925 2.1539e-09 deg/d
Q 3.091616020262336 2.2913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      7354 days (20.13 yr)  
   first obs. used      2000-03-03  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:37:52  

Additional Information
 Earth MOID = 1.83791 au 
 Jupiter MOID = 2.05167 au 
 T_jup = 3.265 
[ 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 15.7   n/a MPO422385  

112911 (2002 QB57)          Discovered 2002-Aug-17 by Lowe, A. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2002 QB57 = 2000 EJ199 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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