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 ]  
(2019 KJ4)
Classification: Aten [NEO]          SPK-ID: 3842657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2639392528880989 0.00019866  
a .8208662482691115 0.00011131 au
q .6042074239799056 0.000245 au
i .1876907554698863 0.00016389 deg
node 356.4181633543747 0.010741 deg
peri 59.12217748491198 0.011472 deg
M 326.386137044237 0.10712 deg
tp 2459025.864304004815
(2020-Jun-25.36430400)
0.085993 TDB
period 271.6483212224136
0.74
0.055256
0.0001513
d
yr
n 1.325242866880256 0.00026957 deg/d
Q 1.037525072558317 0.0001407 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      8 days  
   first obs. used      2019-05-31  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .36047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-27 14:02:16  

Additional Information
 Earth MOID = .00189802 au 
 Jupiter MOID = 4.23583 au 
 T_jup = 7.105 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458638.5 (2019-Jun-04.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2654720595571999 0.00019596  
q .6022423009900851 0.00024095 au
tp 2458754.103269579747
(2019-Sep-27.60326958)
0.030536 TDB
node 358.2913150601238 0.0065858 deg
peri 57.37818139776083 0.0075224 deg
i .1888127008656381 0.00016329 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      8 days  
   first obs. used      2019-05-31  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .36047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-27 14:02:16  

Additional Information
 Jupiter MOID = 4.23583 au 
 T_jup = 7.105 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.840220820111773E-8 -4.72181262240944E-8 -5.983825215726241E-6 1.129445608196571E-6 -1.34787127464871E-6 3.199568020602894E-8
q -4.72181262240944E-8 5.805794017792246E-8 7.357490228341205E-6 -1.389280301851714E-6 1.657813781120862E-6 -3.934118007368384E-8
tp -5.983825215726241E-6 7.357490228341205E-6 .0009324191218174024 -.0001756124248678851 .0002096721026189543 -4.985343136351244E-6
node 1.129445608196571E-6 -1.389280301851714E-6 -.0001756124248678851 4.337313268494329E-5 -4.934356619146049E-5 9.482493384547679E-7
peri -1.34787127464871E-6 1.657813781120862E-6 .0002096721026189543 -4.934356619146049E-5 5.658591310827766E-5 -1.129974426811627E-6
i 3.199568020602894E-8 -3.934118007368384E-8 -4.985343136351244E-6 9.482493384547679E-7 -1.129974426811627E-6 2.666362852692008E-8

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.4   .3847 MPO473668 autocmod 2.6q

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 16:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin