Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
152680 (1998 KJ9)
Classification: Apollo [NEO, PHA]          SPK-ID: 2152680
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6397349375750881 5.1593e-08  
a 1.447719076976776 4.5728e-09 au
q .5215626036407741 7.391e-08 au
i 10.93089230803532 1.1386e-05 deg
node 98.58114787568132 3.8186e-05 deg
peri 260.0610677382592 3.6864e-05 deg
M 304.5994876529081 2.5716e-05 deg
tp 2459298.412052153496
(2021-Mar-24.91205215)
4.5898e-05 TDB
period 636.2457183504538
1.74
3.0145e-06
8.253e-09
d
yr
n .5658191318494761 2.6808e-09 deg/d
Q 2.373875550312779 7.4982e-09 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      10299 days (28.20 yr)  
   first obs. used      1990-01-01  
   last obs. used      2018-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:10  

Additional Information
 Earth MOID = .00572161 au 
 Jupiter MOID = 3.13662 au 
 T_jup = 4.390 
[ show covariance matrix ]

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

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

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 10:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin