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226158 (2002 SP44)
Classification: Main-belt Asteroid          SPK-ID: 2226158
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043144214265003 4.9124e-08  
a 2.31212476333009 1.5767e-08 au
q 1.839724330044419 1.1452e-07 au
i 6.355896791460316 8.0481e-06 deg
node 24.52388332266629 4.5793e-05 deg
peri 287.1768852521078 5.063e-05 deg
M 53.11707126091502 1.9292e-05 deg
tp 2458811.027168672299
(2019-Nov-23.52716867)
6.8423e-05 TDB
period 1284.14872391813
3.52
1.3135e-05
3.596e-08
d
yr
n .2803413602293557 2.8676e-09 deg/d
Q 2.784525196615761 1.8988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      6554 days (17.94 yr)  
   first obs. used      2001-05-22  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:28:44  

Additional Information
 Earth MOID = .838181 au 
 Jupiter MOID = 2.52098 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457022.5 (2014-Dec-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .203971725999144 4.9067e-08  
q 1.841325850322303 1.1437e-07 au
tp 2457527.400057089093
(2016-May-18.90005709)
6.7578e-05 TDB
node 24.56049314799895 4.5781e-05 deg
peri 287.2648727910321 5.0647e-05 deg
i 6.356254773193731 8.0474e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      6554 days (17.94 yr)  
   first obs. used      2001-05-22  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:28:44  

Additional Information
 Jupiter MOID = 2.52098 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.407554065920195E-15 -5.577539252017178E-15 1.217221434879904E-12 -8.522476380244271E-15 3.328447450390032E-13 -1.571935391924937E-17
q -5.577539252017178E-15 1.308100723132856E-14 -2.832708964985758E-12 2.059525611893321E-14 -7.980582923014621E-13 -5.224991680421637E-17
tp 1.217221434879904E-12 -2.832708964985758E-12 4.566844983988493E-9 -5.282317749999747E-11 1.472522191356526E-9 8.739841531453093E-13
node -8.522476380244271E-15 2.059525611893321E-14 -5.282317749999747E-11 2.095907763176114E-9 -2.098177975638449E-9 -4.861706884926253E-11
peri 3.328447450390032E-13 -7.980582923014621E-13 1.472522191356526E-9 -2.098177975638449E-9 2.565118777659121E-9 4.872456468065583E-11
i -1.571935391924937E-17 -5.224991680421637E-17 8.739841531453093E-13 -4.861706884926253E-11 4.872456468065583E-11 6.476144129418486E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO437072  

226158 (2002 SP44)          Discovered 2002-Sep-29 by NEAT at Haleakala
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2002 SP44 = 2009 SA275 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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