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59633 (1999 JC78)
Classification: Main-belt Asteroid          SPK-ID: 2059633
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162747946582572 3.009e-08  
a 2.561760649601061 9.3893e-09 au
q 2.263892456105094 7.8196e-08 au
i 12.91687028474409 3.8996e-06 deg
node 207.176619090731 1.4938e-05 deg
peri 22.12479262618101 2.3779e-05 deg
M 60.10171079969898 1.8488e-05 deg
tp 2458750.470883674386
7.6582e-05 TDB
period 1497.635935476098
n .240378847403629 1.3215e-09 deg/d
Q 2.859628843097028 1.0481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1905  
   data-arc span      7753 days (21.23 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:22:48  

Additional Information
 Earth MOID = 1.26 au 
 Jupiter MOID = 2.12329 au 
 T_jup = 3.390 
[ 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 13.7   n/a MPO337726  
diameter diameter 5.718 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.215   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

59633 (1999 JC78)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1960-Jul-20 23:09 00:01 Europ 0.0299967661182341 0.0299892398342563 0.0300042926569092 4.51105994679918 4.51105986825416 2437136.464541616 1.46647434132335 399.710889352892 24.420992925359 20.2437902731972 64408.8917971635 T 28 CATAB v2.0f-lin.ifort 2020-Aug-25 05:23:00 2020-Aug-25 05:23

Alternate Designations
 1999 JC78 = 2000 RB33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Sep-24 03:22 UT
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