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JPL Small-Body Database Browser
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(2015 TQ21)
Classification: Apollo [NEO]          SPK-ID: 3729141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2457307.5 (2015-Oct-12.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6048099262974156 0.00082981  
a 1.129716946055448 0.0011349 au
q .4464529231747112 0.00048912 au
i 3.331459035319665 0.0063238 deg
node 15.48666243789503 0.00087488 deg
peri 239.7496793372307 0.002047 deg
M 49.07764184390653 0.1154 deg
tp 2457247.709239413103
(2015-Aug-13.20923941)
0.050502 TDB
period 438.5841088237906
1.20
0.66088
0.001809
d
yr
n .8208231733827747 0.0012369 deg/d
Q 1.812980968936186 0.0018213 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      4 days  
   first obs. used      2015-10-09  
   last obs. used      2015-10-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .44137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 14:44:43  

Additional Information
 Earth MOID = .00233377 au 
 Jupiter MOID = 3.25118 au 
 T_jup = 5.347 
[ 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 27.4   n/a MPO357237  

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