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215957 (2005 NT55)
Classification: Main-belt Asteroid          SPK-ID: 2215957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2471133710098348 4.3557e-08  
a 2.697199423096064 1.5995e-08 au
q 2.030685381369014 1.2025e-07 au
i 12.19224770253263 5.5307e-06 deg
node 224.125136614769 2.1936e-05 deg
peri 62.90526205658785 2.5221e-05 deg
M 54.47040582519295 1.0875e-05 deg
tp 2458355.691707813397
(2018-Aug-25.19170781)
4.8079e-05 TDB
period 1617.960869797958
4.43
1.4392e-05
3.94e-08
d
yr
n .2225022908279326 1.9792e-09 deg/d
Q 3.363713464823114 1.9947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      6625 days (18.14 yr)  
   first obs. used      2001-10-07  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:01:31  

Additional Information
 Earth MOID = 1.04745 au 
 Jupiter MOID = 1.90442 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457207.5 (2015-Jul-04.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2479491772644931 4.3233e-08  
q 2.027789761030018 1.1934e-07 au
tp 2456739.319824475854
(2014-Mar-22.81982448)
4.5207e-05 TDB
node 224.1433701029503 2.1952e-05 deg
peri 63.13056031611762 2.5241e-05 deg
i 12.18929283109639 5.5301e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      6625 days (18.14 yr)  
   first obs. used      2001-10-07  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:01:31  

Additional Information
 Jupiter MOID = 1.90442 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.869072493179885E-15 -5.133827261242919E-15 -3.665898978935638E-13 2.0431756939429E-14 -1.85018114753457E-13 -8.444079246216455E-15
q -5.133827261242919E-15 1.42412252448414E-14 1.006192066257017E-12 -5.881459929368946E-14 5.212100458456303E-13 2.487421820779703E-14
tp -3.665898978935638E-13 1.006192066257017E-12 2.043672068898544E-9 -2.943842536599712E-11 5.730422672699807E-10 1.662553091252656E-12
node 2.0431756939429E-14 -5.881459929368946E-14 -2.943842536599712E-11 4.819061903117217E-10 -4.787813130368541E-10 -5.964674046399713E-12
peri -1.85018114753457E-13 5.212100458456303E-13 5.730422672699807E-10 -4.787813130368541E-10 6.371010310713308E-10 6.591609750747035E-12
i -8.444079246216455E-15 2.487421820779703E-14 1.662553091252656E-12 -5.964674046399713E-12 6.591609750747035E-12 3.058237834972954E-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 16.0   n/a MPO433413  

215957 (2005 NT55)          Discovered 2005-Jul-11 by Lowe, A. at Mayhill
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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