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49135 (1998 SP28)
Classification: Main-belt Asteroid          SPK-ID: 2049135
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03250100935990585 5.5483e-08  
a 2.751313518676437 1.6805e-08 au
q 2.661893052253899 1.5518e-07 au
i 8.017555602571431 6.4485e-06 deg
node 35.2038493510549 3.4078e-05 deg
peri 4.040386848764854 8.7768e-05 deg
M 158.1613677646355 8.2222e-05 deg
tp 2457868.170614022597
(2017-Apr-24.67061402)
0.00037822 TDB
period 1666.896174950847
4.56
1.5272e-05
4.181e-08
d
yr
n .2159702598217406 1.9787e-09 deg/d
Q 2.840733985098975 1.7351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      7532 days (20.62 yr)  
   first obs. used      1998-09-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:49:18  

Additional Information
 Earth MOID = 1.66815 au 
 Jupiter MOID = 2.28746 au 
 T_jup = 3.331 
[ 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 14.7   n/a MPO299293  
diameter diameter 5.883 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49135 (1998 SP28)          Discovered 1998-Sep-17 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SP28 = 2000 BW23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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