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JPL Small-Body Database Browser
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21738 Schwank (1999 RB153)
Classification: Main-belt Asteroid          SPK-ID: 2021738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144799051549056 3.1526e-08  
a 2.3228018255536 8.5982e-09 au
q 1.986462324277023 7.2521e-08 au
i 5.578859358269405 4.7694e-06 deg
node 205.447542770362 3.6129e-05 deg
peri 94.09151718783653 4.0269e-05 deg
M 229.0125963811396 1.9348e-05 deg
tp 2459070.982742483272
(2020-Aug-09.48274248)
7.0906e-05 TDB
period 1293.05400835955
3.54
7.1796e-06
1.966e-08
d
yr
n .2784106446232038 1.5459e-09 deg/d
Q 2.659141326830177 9.8432e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1381  
   data-arc span      10193 days (27.91 yr)  
   first obs. used      1991-05-11  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:59:51  

Additional Information
 Earth MOID = .979809 au 
 Jupiter MOID = 2.54605 au 
 T_jup = 3.556 
[ 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 15.1   n/a MPO365511  

21738 Schwank           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Benjamin Albert Schwank (b. 1987) was awarded first place and Best in Category in the 2005 Intel International Science and Engineering Fair for his microbiology project. He attends the James Madison High School, Vienna, Virginia, 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: 20050822/MPCPages.arcLast Updated: 2005-08-26

[ show close-approach data ]
Alternate Designations
 1999 RB153 = 1998 FU24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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