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101291 (1998 SP125)
Classification: Main-belt Asteroid          SPK-ID: 2101291
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466434252324904 4.391e-08  
a 2.277845265409563 1.0065e-08 au
q 1.943814233540294 1.0238e-07 au
i 6.067231173066333 5.3762e-06 deg
node 156.9120204428598 3.781e-05 deg
peri 224.2220687898986 4.1855e-05 deg
M 103.0588138784657 1.7956e-05 deg
tp 2458641.026074361262
(2019-Jun-06.52607436)
6.1707e-05 TDB
period 1255.696707149724
3.44
8.3231e-06
2.279e-08
d
yr
n .2866934331755599 1.9003e-09 deg/d
Q 2.611876297278833 1.1542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      7878 days (21.57 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:00  

Additional Information
 Earth MOID = .950998 au 
 Jupiter MOID = 2.85344 au 
 T_jup = 3.586 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456621.5 (2013-Nov-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1472259387352972 4.4143e-08  
q 1.941904410643715 1.0296e-07 au
tp 2456128.445199915436
(2012-Jul-19.94519992)
5.6919e-05 TDB
node 156.9886822288289 3.7772e-05 deg
peri 223.778235488873 4.1768e-05 deg
i 6.070347058358551 5.3804e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      7878 days (21.57 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:00  

Additional Information
 Jupiter MOID = 2.85344 au 
 T_jup = 3.586 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.948564825555776E-15 -4.529898751341568E-15 -9.001814620041209E-13 -8.351033528634569E-15 -2.827123458754141E-13 -3.217154075279243E-15
q -4.529898751341568E-15 1.059990902349296E-14 2.10954661043834E-12 1.820877657614456E-14 6.690252863839402E-13 7.705964611676129E-15
tp -9.001814620041209E-13 2.10954661043834E-12 3.239726598571229E-9 -3.629544683455841E-12 1.025439743806873E-9 -1.974332600630212E-12
node -8.351033528634569E-15 1.820877657614456E-14 -3.629544683455841E-12 1.426696887789733E-9 -1.418740524008636E-9 1.088480020536066E-11
peri -2.827123458754141E-13 6.690252863839402E-13 1.025439743806873E-9 -1.418740524008636E-9 1.744541324215616E-9 -1.147551705114546E-11
i -3.217154075279243E-15 7.705964611676129E-15 -1.974332600630212E-12 1.088480020536066E-11 -1.147551705114546E-11 2.89482936866263E-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 16.1   n/a MPO348131  

101291 (1998 SP125)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 SP125 = 2003 AA40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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