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100041 (1991 RJ28)
Classification: Main-belt Asteroid          SPK-ID: 2100041
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05189143548913119 3.573e-08  
a 2.750833867166601 1.5289e-08 au
q 2.608089149007208 1.0351e-07 au
i 9.161394163534288 4.3099e-06 deg
node 150.4542414363313 2.6872e-05 deg
peri 322.3167940751523 5.5456e-05 deg
M 345.7016037318593 4.8203e-05 deg
tp 2459066.688082408458
0.00022319 TDB
period 1666.460295280624
n .2160267490437734 1.8011e-09 deg/d
Q 2.893578585325994 1.6083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      509  
   data-arc span      10368 days (28.39 yr)  
   first obs. used      1991-09-08  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:59:52  

Additional Information
 Earth MOID = 1.6301 au 
 Jupiter MOID = 2.14731 au 
 T_jup = 3.325 
[ 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 15.5   n/a MPO453454  

100041 (1991 RJ28)          Discovered 1991-Sep-08 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
2175-Nov-27 05:08 00:03 Eunom 0.0372425516617734 0.0372075632591963 0.0372775584822296 7.10856974958222 7.10856969655825 2515792.714090942 3.21399329016672 2179.2153819917 40.1074451346232 36.8233307248212 83251.7445284223 T 20 CATAB v2.0f-lin.ifort 2020-Feb-24 01:00:04 2020-Feb-24 01:00

Alternate Designations
 1991 RJ28 = 1998 FS6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Dec-03 14:24 UT
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