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49190 (1998 SL81)
Classification: Main-belt Asteroid          SPK-ID: 2049190
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400229668802172 2.814e-08  
a 2.397290093911639 8.8148e-09 au
q 2.061614422489577 6.8199e-08 au
i 1.608271551237965 3.6671e-06 deg
node 147.2760430055393 0.00011937 deg
peri 331.2190813097764 0.0001203 deg
M 200.0120954764899 1.6794e-05 deg
tp 2459603.009588069900
(2022-Jan-23.50958807)
6.5036e-05 TDB
period 1355.749063350537
3.71
7.4776e-06
2.047e-08
d
yr
n .2655358648084272 1.4646e-09 deg/d
Q 2.732965765333701 1.0049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      9056 days (24.79 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:52  

Additional Information
 Earth MOID = 1.07789 au 
 Jupiter MOID = 2.34248 au 
 T_jup = 3.514 
[ 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 15.6   n/a MPO390034  

49190 (1998 SL81)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SL81 = 2000 CN92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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