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20527 Dajowestrich (1999 RO48)
Classification: Main-belt Asteroid          SPK-ID: 2020527
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 .1451524505403592 3.0141e-08  
a 2.385180465639424 8.0284e-09 au
q 2.038965676070867 7.3143e-08 au
i 2.439661696400861 3.5707e-06 deg
node 151.3192549365959 7.7767e-05 deg
peri 68.01336457238467 7.8663e-05 deg
M 314.0007546655696 1.2609e-05 deg
tp 2459172.420829766352
4.7327e-05 TDB
period 1345.489437183458
n .2675606289066049 1.3509e-09 deg/d
Q 2.731395255207981 9.1938e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1583  
   data-arc span      10601 days (29.02 yr)  
   first obs. used      1991-04-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49224  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:13:22  

Additional Information
 Earth MOID = 1.03274 au 
 Jupiter MOID = 2.24001 au 
 T_jup = 3.520 
[ 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 14.9   n/a MPO309314  
diameter diameter 2.934 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.271   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

20527 Dajowestrich           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
David John Westrich (b. 1990) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his environmental sciences project. He attends the St. Vincent de Paul Parish School, Cape Girardeau, Missouri.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

[ hide close-approach data ]
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
2069-Dec-19 03:19 00:03 Psych 0.0439086279462223 0.0439013339673505 0.0439159220132183 3.74423394916546 3.74423387557182 2477099.637867819 2.84444491355977 376.360185870107 39.7534366577102 15.2301985233627 46508.5258694274 T 28 CATAB v2.0f-lin.ifort 2020-May-20 05:13:40 2020-May-20 05:13

Alternate Designations
 1999 RO48 = 1991 HV = 2000 UW52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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