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(2012 TC4)
Classification: Apollo [NEO]          SPK-ID: 3609693
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 62 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4038209340676182 5.027e-08  
a 1.620116143453835 1.1786e-07 au
q .96587932910628 4.2117e-08 au
i .5349826739255902 2.0611e-06 deg
node 19.7095671566809 3.1578e-06 deg
peri 26.54954829753605 6.7527e-06 deg
M 184.3911208602379 6.6138e-05 deg
tp 2459567.919008869820
(2021-Dec-19.41900887)
0.00017734 TDB
period 753.2127295674201
2.06
8.2192e-05
2.25e-07
d
yr
n .4779526233003958 5.2155e-08 deg/d
Q 2.27435295780139 1.6545e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.363273090491061E-11 7.973E-12
A2 [EST] -2.68996434132612E-13 6.535E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      805  
   # delay obs. used      7  
   # Doppler obs. used      2  
   data-arc span      1897 days (5.19 yr)  
   first obs. used      2012-10-04  
   last obs. used      2017-12-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .29759  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 11:35:13  

Additional Information
 Earth MOID = .000137232 au 
 Jupiter MOID = 3.13158 au 
 T_jup = 4.233 
[ 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 26.7   n/a MPO240126  
rotation period rot_per 0.204155 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Odden, C.E.; Verhaegh, J.C.; McCullough, D.G.; Briggs, J.W. (2013) Minor Planet Bull. 40, 176-177.]
[Polishook, D. (2013). Minor Planet Bull. 40, 42-43.]
[Warner, B.D. (2013) Minor Planet Bull. 40, 71-80.]
[Carbognani, A. (2014) Minor Planet Bull. 41, 4-8.]
[Tan, H.; Gao, X. (2018) Minor Planet Bull. 45, 220-221.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 19-34.]
[Lin, Z.-Y.; Ip, W.-H.; Ngeow, C.-C. (2019) Plan. Space Sci. 166, 54-58.]

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