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JPL Small-Body Database Browser
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(2015 TN21)
Classification: Apollo [NEO]          SPK-ID: 3729136
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4624276478630139 0.00022581  
a 1.345290623836514 0.00039803 au
q .723191044963628 8.9974e-05 au
i 2.225657961294531 0.0012042 deg
node 13.57249907075126 0.00010551 deg
peri 86.46154757508056 0.001576 deg
M 315.6675038014915 0.46292 deg
tp 2459070.684673613184
(2020-Aug-09.18467361)
0.76401 TDB
period 569.9314197786173
1.56
0.25294
0.0006925
d
yr
n .6316549456772141 0.00028033 deg/d
Q 1.967390202709399 0.00058209 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      2 days  
   first obs. used      2015-10-08  
   last obs. used      2015-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .41416  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:31:34  

Additional Information
 Earth MOID = .00265204 au 
 Jupiter MOID = 3.21423 au 
 T_jup = 4.769 
[ 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 27.2   n/a E2015T79  

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