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101250 (1998 SR91)
Classification: Main-belt Asteroid          SPK-ID: 2101250
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1479813017168522 3.9964e-08  
a 2.377695414266775 8.1405e-09 au
q 2.025840951777387 9.69e-08 au
i 4.18199753180507 3.8857e-06 deg
node 319.869272076065 5.7774e-05 deg
peri 78.49587947536608 5.9361e-05 deg
M .1446340209625588 1.2678e-05 deg
tp 2459199.961977155123
(2020-Dec-16.46197715)		 4.7162e-05 TDB
period 1339.160889440325
3.67		 6.8773e-06
1.883e-08		 d
yr
n .2688250551809758 1.3806e-09 deg/d
Q 2.729549876756162 9.3451e-09 au
   Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1998-08-27  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:54  

Additional Information
 Earth MOID = 1.0371 au 
 Jupiter MOID = 2.68825 au 
 T_jup = 3.522 
[ show covariance matrix ]

[ 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 15.98   n/a E2021B55  

101250 (1998 SR91)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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