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91197 (1998 SD115)
Classification: Main-belt Asteroid          SPK-ID: 2091197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020391986277584 3.7345e-08  
a 3.153881753942447 2.5787e-08 au
q 2.832062187203451 1.2655e-07 au
i 11.65237535678694 5.0112e-06 deg
node 194.7264749189056 1.9797e-05 deg
peri 217.1068397388671 3.2214e-05 deg
M 351.7961319170076 2.4782e-05 deg
tp 2459443.121120198314
(2021-Aug-16.62112020)
0.00014083 TDB
period 2045.815839748487
5.60
2.5091e-05
6.87e-08
d
yr
n .1759689181232747 2.1582e-09 deg/d
Q 3.475701320681444 2.8418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      802  
   data-arc span      8330 days (22.81 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5295  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:42  

Additional Information
 Earth MOID = 1.85055 au 
 Jupiter MOID = 1.98086 au 
 T_jup = 3.167 
[ 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 14.71   n/a E2021B10  

91197 (1998 SD115)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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