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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021508745978367 5.0718e-08  
a 3.155945542678483 3.8874e-08 au
q 2.833562945310731 1.5113e-07 au
i 11.6481195620031 5.773e-06 deg
node 194.7404203003023 2.3695e-05 deg
peri 216.6887304771458 3.5224e-05 deg
M 282.5100621207374 2.5021e-05 deg
tp 2459441.293812692830
(2021-Aug-14.79381269)
0.00014286 TDB
period 2047.824232568979
5.61
3.7837e-05
1.036e-07
d
yr
n .175796337534488 3.2481e-09 deg/d
Q 3.478328140046234 4.2845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      7229 days (19.79 yr)  
   first obs. used      1998-09-26  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:29:36  

Additional Information
 Earth MOID = 1.85231 au 
 Jupiter MOID = 1.97611 au 
 T_jup = 3.166 
[ 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 14.6   n/a MPO436410  

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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