Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
(2012 TC4)
Classification: Apollo [NEO]          SPK-ID: 3609693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458027.5 (2017-Oct-01.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .336078378275231 2.4454e-08  
a 1.406087192264245 7.8362e-08 au
q .9335316889745044 1.8165e-08 au
i .8571723418033164 1.0454e-06 deg
node 198.2327343359685 1.0379e-06 deg
peri 222.5838803027783 6.9766e-06 deg
M 332.7890866483427 5.6597e-06 deg
tp 2458073.531743445733
(2017-Nov-16.03174345)
5.7459e-06 TDB
period 608.9993167926712
1.67
5.091e-05
1.394e-07
d
yr
n .5911336680900728 4.9416e-08 deg/d
Q 1.878642695553985 1.047e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.172240468630678E-11 8.001E-12
A2 [EST] -2.734598700568092E-13 6.54E-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)      802  
   # 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .29423  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Dec-16 22:22:34  

Additional Information
 Earth MOID = .000148833 au 
 Jupiter MOID = 3.45846 au 
 T_jup = 4.680 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 5.980208668822838E-16 4.24728860862557E-16 -1.367169872856738E-13 -8.533264408510987E-15 -1.627852175151808E-13 -5.254372364903034E-15 -1.942292963124587E-19 2.785349667619545E-22
q 4.24728860862557E-16 3.299614954925831E-16 -1.041513587030519E-13 -5.787969155276885E-15 -1.254298549781288E-13 -2.408779578176536E-15 -1.418728175532007E-19 2.457393400387035E-22
tp -1.367169872856738E-13 -1.041513587030519E-13 3.301494347390109E-11 1.88281282980977E-12 3.966386668230846E-11 8.802115353893257E-13 4.538069242888868E-17 -7.573536500097857E-20
node -8.533264408510987E-15 -5.787969155276885E-15 1.88281282980977E-12 1.077339698449958E-12 1.275169336137602E-12 6.133733076533787E-13 2.814381695127499E-18 4.864827144613827E-21
peri -1.627852175151808E-13 -1.254298549781288E-13 3.966386668230846E-11 1.275169336137602E-12 4.867231242992859E-11 4.579893784954903E-13 5.415093679539545E-17 -1.00836368601913E-19
i -5.254372364903034E-15 -2.408779578176536E-15 8.802115353893257E-13 6.133733076533787E-13 4.579893784954903E-13 1.092808150776448E-12 1.822924782782432E-18 3.081197572207062E-20
A1 -1.942292963124587E-19 -1.418728175532007E-19 4.538069242888868E-17 2.814381695127499E-18 5.415093679539545E-17 1.822924782782432E-18 6.401036529941618E-23 -5.766694228612189E-26
A2 2.785349667619545E-22 2.457393400387035E-22 -7.573536500097857E-20 4.864827144613827E-21 -1.00836368601913E-19 3.081197572207062E-20 -5.766694228612189E-26 4.276884929108359E-27

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. 2019-August); 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.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 19:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin