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226854 (2004 TN4)
Classification: Main-belt Asteroid          SPK-ID: 2226854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776457008646135 4.8161e-08  
a 3.171527536189049 4.1326e-08 au
q 2.608119304211325 1.5569e-07 au
i 3.758427638846651 8.3652e-06 deg
node 202.1081053511673 8.2988e-05 deg
peri 265.1248121813072 8.6137e-05 deg
M 214.0119688623089 2.5686e-05 deg
tp 2459837.096237887180
(2022-Sep-14.59623789)
0.00015528 TDB
period 2063.009161040927
5.65
4.0323e-05
1.104e-07
d
yr
n .1745023758490513 3.4107e-09 deg/d
Q 3.734935768166774 4.8667e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      1998-10-29  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63789  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 16:49:20  

Additional Information
 Earth MOID = 1.62828 au 
 Jupiter MOID = 1.43934 au 
 T_jup = 3.174 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456705.5 (2014-Feb-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724884078601156 4.6854e-08  
q 2.628061702009339 1.5024e-07 au
tp 2455689.545032862658
(2011-May-08.04503286)
0.00013688 TDB
node 202.7456883105251 8.2138e-05 deg
peri 262.5517258164345 8.5843e-05 deg
i 3.771368926849505 8.409e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      1998-10-29  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63789  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 16:49:20  

Additional Information
 Jupiter MOID = 1.43934 au 
 T_jup = 3.174 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.195323960881782E-15 -6.86734500519145E-15 -4.386680235110199E-13 -1.653775267931484E-15 -8.038920736225675E-14 8.254386548149779E-16
q -6.86734500519145E-15 2.257161818098057E-14 1.880603573750685E-12 1.025154088665238E-14 4.24533186777242E-13 3.884134074583568E-15
tp -4.386680235110199E-13 1.880603573750685E-12 1.873646771721309E-8 -4.664983478118825E-11 3.428702033852498E-9 -3.353531004403762E-12
node -1.653775267931484E-15 1.025154088665238E-14 -4.664983478118825E-11 6.746627835959639E-9 -6.738665168480638E-9 -7.273939277191993E-12
peri -8.038920736225675E-14 4.24533186777242E-13 3.428702033852498E-9 -6.738665168480638E-9 7.369000860105777E-9 7.539037282637476E-12
i 8.254386548149779E-16 3.884134074583568E-15 -3.353531004403762E-12 -7.273939277191993E-12 7.539037282637476E-12 7.071088766223886E-11

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 15.8   n/a MPO433485  

226854 (2004 TN4)          Discovered 2004-Oct-04 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 TN4 = 2006 CA31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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