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JPL Small-Body Database Browser
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(2015 TK21)
Classification: Apollo [NEO]          SPK-ID: 3729139
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3768579273334155 0.00031781  
a 1.20718477053873 0.00032875 au
q .7522476200050398 0.00017881 au
i 1.457636783130309 0.0014444 deg
node 352.1443973386488 0.003562 deg
peri 110.293175196266 0.0037646 deg
M 67.97799356727975 0.67632 deg
tp 2459305.020266707275
(2021-Mar-31.52026671)
0.87278 TDB
period 484.4612536671358
1.33
0.1979
0.0005418
d
yr
n .7430934822444009 0.00030355 deg/d
Q 1.662121921072421 0.00045265 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      3 days  
   first obs. used      2015-10-08  
   last obs. used      2015-10-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .54367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 14:44:41  

Additional Information
 Earth MOID = .00631954 au 
 Jupiter MOID = 3.49313 au 
 T_jup = 5.202 
[ 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 26.4   n/a E2015T54  

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