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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07633422045147524 6.0297e-08  
a 2.587022682394178 1.7096e-08 au
q 2.389544322643334 1.5193e-07 au
i 2.42439998445834 4.7203e-06 deg
node 286.7135125546323 0.00014583 deg
peri 112.2955688148503 0.00014983 deg
M 133.1005031980637 3.4173e-05 deg
tp 2458438.578074250319
(2018-Nov-16.07807425)
0.00014448 TDB
period 1519.843189239182
4.16
1.5066e-05
4.125e-08
d
yr
n .2368665415938156 2.348e-09 deg/d
Q 2.784501042145022 1.8401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      9687 days (26.52 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:36:56  

Additional Information
 Earth MOID = 1.39836 au 
 Jupiter MOID = 2.51216 au 
 T_jup = 3.416 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457123.5 (2015-Apr-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07443381507348444 6.0044e-08  
q 2.394864568257414 1.5089e-07 au
tp 2456916.642015636550
(2014-Sep-16.14201564)
0.00015073 TDB
node 286.8874273314945 0.00014557 deg
peri 111.9001298658408 0.00014983 deg
i 2.426524648879863 4.725e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      9687 days (26.52 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:36:56  

Additional Information
 Jupiter MOID = 2.51216 au 
 T_jup = 3.416 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.60531200169172E-15 -9.014805545256556E-15 -3.171573572051578E-12 -6.93165559698586E-14 -7.887244293949114E-13 -1.410051091690306E-16
q -9.014805545256556E-15 2.276677897934463E-14 7.805104690470175E-12 1.743126065177327E-13 1.948231968652493E-12 5.838794035600181E-16
tp -3.171573572051578E-12 7.805104690470175E-12 2.272052665265448E-8 9.170093044794352E-11 5.40213641348374E-9 -2.283515448713986E-12
node -6.93165559698586E-14 1.743126065177327E-13 9.170093044794352E-11 2.118954295381898E-8 -2.114636085883343E-8 1.139648568062475E-10
peri -7.887244293949114E-13 1.948231968652493E-12 5.40213641348374E-9 -2.114636085883343E-8 2.244853446104106E-8 -1.143920666783853E-10
i -1.410051091690306E-16 5.838794035600181E-16 -2.283515448713986E-12 1.139648568062475E-10 -1.143920666783853E-10 2.232586765373333E-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 16.4   n/a MPO469700  

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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