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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4622600974476844 0.00022722  
a 1.345484703606354 0.00039672 au
q .7235208134029121 9.2545e-05 au
i 2.22558326269759 0.0012043 deg
node 13.56520754824327 6.507e-05 deg
peri 86.46916331166776 0.0016833 deg
M 205.7879546376675 0.5736 deg
tp 2459640.692527845129
(2022-Mar-02.19252785)
1.0163 TDB
period 570.0547568621972
1.56
0.25212
0.0006903
d
yr
n .6315182807728503 0.0002793 deg/d
Q 1.967448593809796 0.0005801 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .41694  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 14:44:41  

Additional Information
 Earth MOID = .00263194 au 
 Jupiter MOID = 3.21459 au 
 T_jup = 4.768 
[ 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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