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21412 Sinchanban (1998 FJ67)
Classification: Main-belt Asteroid          SPK-ID: 2021412
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.

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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03860998784285827 3.3242e-08  
a 2.147459599234541 5.1097e-09 au
q 2.064546210215066 7.2199e-08 au
i 3.379410616860661 2.9556e-06 deg
node 89.79174459268897 5.7536e-05 deg
peri 334.9827376836292 6.9842e-05 deg
M 138.2028705622227 3.9836e-05 deg
tp 2458559.233972543249
0.00012684 TDB
period 1149.439003967064
n .3131962624876399 1.1178e-09 deg/d
Q 2.230372988254016 5.3069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2137  
   data-arc span      9209 days (25.21 yr)  
   first obs. used      1995-03-31  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:51:11  

Additional Information
 Earth MOID = 1.07841 au 
 Jupiter MOID = 2.8514 au 
 T_jup = 3.705 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO416934  
diameter diameter 2.391 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.407   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

21412 Sinchanban           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Sinchan Banerjee (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his behavioral and social sciences project. He attends the Clear Lake High School, Houston, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

Alternate Designations
 1998 FJ67 = 1999 RR178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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