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160894 (2001 SP87)
Classification: Main-belt Asteroid          SPK-ID: 2160894
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07618913948254176 6.467e-08  
a 2.587705010637194 2.1752e-08 au
q 2.390549992642085 1.6374e-07 au
i 2.424225808094401 5.7579e-06 deg
node 286.7119665990489 0.0001648 deg
peri 112.5129444760076 0.00016942 deg
M 38.17252018619285 4.0169e-05 deg
tp 2458439.280002651914
(2018-Nov-16.78000265)
0.00016941 TDB
period 1520.444517737238
4.16
1.9171e-05
5.249e-08
d
yr
n .2367728620152221 2.9854e-09 deg/d
Q 2.784860028632303 2.3409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      9141 days (25.03 yr)  
   first obs. used      1993-10-10  
   last obs. used      2018-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53072  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 02:56:14  

Additional Information
 Earth MOID = 1.3988 au 
 Jupiter MOID = 2.51202 au 
 T_jup = 3.416 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456510.5 (2013-Aug-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07459723592724204 6.4445e-08  
q 2.394954337188118 1.6283e-07 au
tp 2456915.520539170918
(2014-Sep-15.02053917)
0.00017257 TDB
node 286.8882527986989 0.00016449 deg
peri 111.5952847264983 0.00016935 deg
i 2.426611665209621 5.7631e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      9141 days (25.03 yr)  
   first obs. used      1993-10-10  
   last obs. used      2018-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53072  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 02:56:14  

Additional Information
 Jupiter MOID = 2.51202 au 
 T_jup = 3.416 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.153145094652355E-15 -1.041755362710081E-14 -1.822049923227498E-12 -5.54165945874084E-14 -4.840064878427112E-13 6.63634450650993E-16
q -1.041755362710081E-14 2.651343006010894E-14 4.736639636566673E-12 1.390169880076601E-13 1.227780407222916E-12 -1.451465140758896E-15
tp -1.822049923227498E-12 4.736639636566673E-12 2.977885433550349E-8 2.224329489310078E-11 7.012991544254653E-9 -4.602093333214431E-12
node -5.54165945874084E-14 1.390169880076601E-13 2.224329489310078E-11 2.705664278199845E-8 -2.70253457808161E-8 1.06426862021359E-10
peri -4.840064878427112E-13 1.227780407222916E-12 7.012991544254653E-9 -2.70253457808161E-8 2.868083696594761E-8 -1.074132075811398E-10
i 6.63634450650993E-16 -1.451465140758896E-15 -4.602093333214431E-12 1.06426862021359E-10 -1.074132075811398E-10 3.321296372316234E-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 16.3   n/a MPO412929  

160894 (2001 SP87)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2001 SP87 = 2004 JL51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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