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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1754574094663037 6.2249e-08  
a 2.275278653942371 1.6762e-08 AU
q 1.876064155507664 1.4111e-07 AU
i 4.30210893834949 6.2733e-06 deg
node 51.84718735798384 8.6737e-05 deg
peri 263.6997147668598 8.8508e-05 deg
M 187.7660331696868 2.0883e-05 deg
tp 2457400.244976424235
(2016-Jan-12.74497642)
7.4653e-05 JED
period 1253.574979930873
3.43
1.3852e-05
3.792e-08
d
yr
n .287178673604232 3.1734e-09 deg/d
Q 2.674493152377078 1.9703e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      8358 days (22.88 yr)  
   first obs. used      1991-05-09  
   last obs. used      2014-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53952  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:52:19  

Additional Information
 Earth MOID = .867446 AU 
 T_jup = 3.585 
[ 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 14.8 mag n/a MPO250661  

48889 (1998 KZ9)          Discovered 1998-May-24 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
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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