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212999 (4330 T-3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212999
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647882472986485 4.7155e-08  
a 3.217564214860713 2.6749e-08 au
q 2.687347447322964 1.4998e-07 au
i 5.474834648071591 5.5847e-06 deg
node 152.4385882059819 4.7455e-05 deg
peri 226.7439757494105 5.0548e-05 deg
M 125.7448753709668 1.7133e-05 deg
tp 2458264.162267870190
(2018-May-25.66226787)
9.6599e-05 TDB
period 2108.090550686062
5.77
2.6288e-05
7.197e-08
d
yr
n .170770653036152 2.1295e-09 deg/d
Q 3.747780982398461 3.1157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      405  
   data-arc span      15529 days (42.52 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:52:24  

Additional Information
 Earth MOID = 1.69304 au 
 Jupiter MOID = 1.72667 au 
 T_jup = 3.161 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO427253  

212999 (4330 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 4330 T-3 = 1997 CM15 = 2003 GZ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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