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154138 (2002 EZ122)
Classification: Main-belt Asteroid          SPK-ID: 2154138
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369444254148704 5.0458e-08  
a 3.125034650493061 2.7858e-08 au
q 2.697078575879729 1.6676e-07 au
i 3.84237144047371 5.6593e-06 deg
node 318.1802744288328 7.7327e-05 deg
peri 347.1354852931043 8.0098e-05 deg
M 54.00409598626601 1.9786e-05 deg
tp 2459093.805254289101
(2020-Sep-01.30525429)
0.00011063 TDB
period 2017.811917148583
5.52
2.6981e-05
7.387e-08
d
yr
n .1784110783272231 2.3856e-09 deg/d
Q 3.552990725106393 3.1672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      9916 days (27.15 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55899  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:34:32  

Additional Information
 Earth MOID = 1.68167 au 
 Jupiter MOID = 1.68972 au 
 T_jup = 3.197 
[ 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 15.20   n/a E2021B55  

154138 (2002 EZ122)          Discovered 2002-Mar-12 by LONEOS at Anderson Mesa
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2002 EZ122 = 1998 MK36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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