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49146 (1998 SN48)
Classification: Main-belt Asteroid          SPK-ID: 2049146
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 .1901263748805604 3.4864e-08  
a 2.621692779313152 1.1309e-08 au
q 2.123239835131801 9.4401e-08 au
i 1.62881053314941 5.1281e-06 deg
node 6.127444252659216 0.00013031 deg
peri 82.23937734847075 0.00013108 deg
M 258.3325129140474 1.4151e-05 deg
tp 2459038.375566545185
(2020-Jul-07.87556655)
6.2253e-05 TDB
period 1550.497690800572
4.25
1.0033e-05
2.747e-08
d
yr
n .2321835125172746 1.5024e-09 deg/d
Q 3.120145723494503 1.346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      9102 days (24.92 yr)  
   first obs. used      1994-11-27  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50507  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:40:02  

Additional Information
 Earth MOID = 1.14041 au 
 Jupiter MOID = 2.09412 au 
 T_jup = 3.378 
[ 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 15.2   n/a MPO493204  
diameter diameter 5.573 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49146 (1998 SN48)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SN48 = 1994 WL11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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