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JPL Small-Body Database Browser
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49151 (1998 SM51)
Classification: Main-belt Asteroid          SPK-ID: 2049151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08249521469048568 7.8959e-08  
a 2.747696004942675 2.061e-08 au
q 2.521024233110739 2.1478e-07 au
i 11.3656813329303 8.7373e-06 deg
node 208.5532483514213 2.4484e-05 deg
peri 355.4145316722251 4.4205e-05 deg
M 11.61538276115513 3.3108e-05 deg
tp 2458546.823711905963
(2019-Mar-04.32371191)
0.00015322 TDB
period 1663.60972437999
4.55
1.8718e-05
5.125e-08
d
yr
n .2163969077147396 2.4348e-09 deg/d
Q 2.974367776774611 2.2311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      527  
   data-arc span      7630 days (20.89 yr)  
   first obs. used      1998-09-27  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:16:06  

Additional Information
 Earth MOID = 1.51738 au 
 Jupiter MOID = 1.9908 au 
 T_jup = 3.314 
[ 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 15.1   n/a MPO474371  
diameter diameter 2.585 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.220   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49151 (1998 SM51)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SM51 = 2000 AZ196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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