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JPL Small-Body Database Browser
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49166 (1998 SL57)
Classification: Main-belt Asteroid          SPK-ID: 2049166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08469983816309368 3.7409e-08  
a 2.306589908543555 7.2293e-09 au
q 2.111222116581291 8.4916e-08 au
i 4.477396910696071 4.1775e-06 deg
node 23.11786533948891 4.0963e-05 deg
peri 146.8544628047268 4.6071e-05 deg
M 146.5343839140483 2.2593e-05 deg
tp 2458079.675926116113
(2017-Nov-22.17592612)
7.9365e-05 TDB
period 1279.540416317429
3.50
6.0155e-06
1.647e-08
d
yr
n .2813510190136042 1.3227e-09 deg/d
Q 2.501957700505819 7.8417e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      10294 days (28.18 yr)  
   first obs. used      1991-10-01  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50558  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:17:31  

Additional Information
 Earth MOID = 1.11857 au 
 Jupiter MOID = 2.46315 au 
 T_jup = 3.579 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO347860  
diameter diameter 3.518 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49166 (1998 SL57)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SL57 = 1999 XA165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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