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JPL Small-Body Database Browser
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(2021 RZ4)
Classification: Amor [NEO]          SPK-ID: 54193844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459467.5 (2021-Sep-10.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5008270532902043 0.0015721  
a 2.096085714370122 0.0068208 au
q 1.046309282598441 0.00010948 au
i 5.029999390788555 0.011357 deg
node 175.329950734782 0.001189 deg
peri 175.0055748639041 0.0079038 deg
M 358.8823042221267 0.0071387 deg
tp 2459470.941383670483
(2021-Sep-13.44138367)
0.0054095 TDB
period 1108.439475123759
3.03
5.4104
0.01481
d
yr
n .3247809267707698 0.0015853 deg/d
Q 3.145862146141803 0.010237 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      3 days  
   first obs. used      2021-09-09  
   last obs. used      2021-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .46614  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-13 05:49:19  

Additional Information
 Earth MOID = .0408552 au 
 Jupiter MOID = 2.2983 au 
 T_jup = 3.577 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.549   .25006 3 autocmod 2.9e

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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