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48813 (1997 WJ1)
Classification: Main-belt Asteroid          SPK-ID: 2048813
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .10043143238718 9.7702e-08  
a 2.985507869283085 4.2852e-08 AU
q 2.685669037567787 2.903e-07 AU
i 10.12698307742691 1.3382e-05 deg
node 14.99014877630789 4.4115e-05 deg
peri 30.60722962866515 7.4828e-05 deg
M 98.58058715103047 6.092e-05 deg
tp 2456484.541636058447
(2013-Jul-11.04163606)
0.00031567 JED
period 1884.194610591925
5.16
4.0567e-05
1.111e-07
d
yr
n .1910630664031594 4.1136e-09 deg/d
Q 3.285346700998383 4.7155e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      6249 days (17.11 yr)  
   first obs. used      1997-10-30  
   last obs. used      2014-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5797  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 04:18:02  

Additional Information
 Earth MOID = 1.69895 AU 
 T_jup = 3.227 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO296496  

48813 (1997 WJ1)          Discovered 1997-Nov-19 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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