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JPL Small-Body Database Browser
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48813 (1997 WJ1)
Classification: Main-belt Asteroid          SPK-ID: 2048813
[ 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 .1014808556788094 5.2332e-08  
a 2.983739899032282 2.1662e-08 au
q 2.680947420955482 1.5735e-07 au
i 10.13148600483069 7.1305e-06 deg
node 14.96818490457522 2.8249e-05 deg
peri 29.73078329985272 4.22e-05 deg
M 45.53882915391153 3.1206e-05 deg
tp 2458362.367194195504
(2018-Aug-31.86719420)		 0.00016268 TDB
period 1882.521173301946
5.15		 2.05e-05
5.613e-08		 d
yr
n .191232908880679 2.0825e-09 deg/d
Q 3.286532377109082 2.386e-08 au
   Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1997-10-30  
   last obs. used      2019-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57941  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:00  

Additional Information
 Earth MOID = 1.69349 au 
 Jupiter MOID = 2.17666 au 
 T_jup = 3.227 
[ 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 14.5   n/a MPO459185  
diameter diameter 4.249 km 1.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48813 (1997 WJ1)          Discovered 1997-Nov-19 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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