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152680 (1998 KJ9)
Classification: Apollo [NEO, PHA]          SPK-ID: 2152680
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6395819006162656 3.8009e-08  
a 1.447894818297263 5.082e-09 AU
q .521847498518257 5.5596e-08 AU
i 10.93379850538541 1.2758e-05 deg
node 98.69829345808841 3.1448e-05 deg
peri 259.9295673453568 3.0392e-05 deg
M 26.82209731145481 2.0617e-05 deg
tp 2456753.087355346833
(2014-Apr-05.58735535)
3.6204e-05 JED
period 636.3615744489408
1.74
3.3504e-06
9.173e-09
d
yr
n .5657161187203094 2.9784e-09 deg/d
Q 2.37394213807627 8.3324e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      7706 days (21.10 yr)  
   first obs. used      1990-01-01  
   last obs. used      2011-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53817  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 09:28:46  

Additional Information
 Earth MOID = .00529291 AU 
 T_jup = 4.390 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.4 mag n/a MPO192326  

152680 (1998 KJ9)          Discovered 1998-May-27 by LINEAR at Socorro (704)
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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