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48889 (1998 KZ9)
Classification: Main-belt Asteroid          SPK-ID: 2048889
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760222042318441 4.8976e-08  
a 2.274553295474457 1.3592e-08 au
q 1.874181410762238 1.1499e-07 au
i 4.302521718944252 5.7221e-06 deg
node 51.82176564646191 6.9117e-05 deg
peri 263.7928093985323 7.1008e-05 deg
M .09666307831423231 1.8224e-05 deg
tp 2457400.163565345834
(2016-Jan-12.66356535)
6.3428e-05 JED
period 1252.975568458157
3.43
1.1231e-05
3.075e-08
d
yr
n .2873160571223238 2.5753e-09 deg/d
Q 2.674925180186676 1.5984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      8863 days (24.27 yr)  
   first obs. used      1991-05-09  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5042  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:52:26  

Additional Information
 Earth MOID = .86464 au 
 Jupiter MOID = 2.60023 au 
 T_jup = 3.586 
[ 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 14.9 mag n/a MPO337648  

48889 (1998 KZ9)          Discovered 1998-May-24 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KZ9 = 2000 AH14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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