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187784 (1998 SL148)
Classification: Main-belt Asteroid          SPK-ID: 2187784
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769998911432549 4.9652e-08  
a 2.369518881385914 1.1936e-08 au
q 1.95011429731872 1.1813e-07 au
i 3.630222854634291 5.3667e-06 deg
node 49.48136825481285 7.6025e-05 deg
peri 331.7827649080986 7.7082e-05 deg
M 17.64545438266076 1.2581e-05 deg
tp 2459135.199120153925
(2020-Oct-12.69912015)
4.6507e-05 TDB
period 1332.259075611409
3.65
1.0067e-05
2.756e-08
d
yr
n .2702177125982695 2.0418e-09 deg/d
Q 2.788923465453108 1.4049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      8166 days (22.36 yr)  
   first obs. used      1998-09-24  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52798  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:49  

Additional Information
 Earth MOID = .952692 au 
 Jupiter MOID = 2.66902 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 16.69   n/a E2021B55  

187784 (1998 SL148)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1998 SL148 = 2002 XS100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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