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JPL Small-Body Database Browser
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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2471133705862729 4.3539e-08  
a 2.697199423299679 1.5987e-08 au
q 2.030685382664744 1.2019e-07 au
i 12.19224772780311 5.5303e-06 deg
node 224.125136220781 2.1902e-05 deg
peri 62.90526229422547 2.5187e-05 deg
M 54.47040588255532 1.0873e-05 deg
tp 2458355.691707527870
(2018-Aug-25.19170753)		 4.8065e-05 TDB
period 1617.96086998117
4.43		 1.4385e-05
3.938e-08		 d
yr
n .2225022908027372 1.9782e-09 deg/d
Q 3.363713463934614 1.9937e-08 au
   Orbit Determination Parameters
   # obs. used (total)      341  
   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      .52496  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:12:09  

Additional Information
 Earth MOID = 1.04745 au 
 Jupiter MOID = 1.90442 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457210.5 (2015-Jul-07.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2479495211308173 4.3215e-08  
q 2.027786279130118 1.1928e-07 au
tp 2456739.319172377551
(2014-Mar-22.81917238)		 4.5178e-05 TDB
node 224.1433775529183 2.1918e-05 deg
peri 63.13025507660533 2.5206e-05 deg
i 12.18930038105119 5.5297e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      341  
   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      .52496  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:12:09  

Additional Information
 Jupiter MOID = 1.90442 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.867540082121762E-15 -5.129192802436064E-15 -3.685712821383944E-13 2.031773852571408E-14 -1.855285400053023E-13 -8.425746826811169E-15
q -5.129192802436064E-15 1.422721250807987E-14 1.012182191545782E-12 -5.848333745435608E-14 5.22766139538241E-13 2.481972497024335E-14
tp -3.685712821383944E-13 1.012182191545782E-12 2.041081190250497E-9 -2.932504652779992E-11 5.721226129674485E-10 1.671288723055994E-12
node 2.031773852571408E-14 -5.848333745435608E-14 -2.932504652779992E-11 4.804090611703556E-10 -4.772867614964273E-10 -5.879077753384205E-12
peri -1.855285400053023E-13 5.22766139538241E-13 5.721226129674485E-10 -4.772867614964273E-10 6.353571983800393E-10 6.510941145151206E-12
i -8.425746826811169E-15 2.481972497024335E-14 1.671288723055994E-12 -5.879077753384205E-12 6.510941145151206E-12 3.057743308770206E-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

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