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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451524538578501 3.0905e-08  
a 2.385180466374459 8.1388e-09 au
q 2.038965668786395 7.4694e-08 au
i 2.439661783099959 3.5821e-06 deg
node 151.3192582569043 8.0169e-05 deg
peri 68.01336114294129 8.1029e-05 deg
M 314.000754309305 1.2619e-05 deg
tp 2459172.420831177351
4.7372e-05 TDB
period 1345.489437805412
n .2675606287829247 1.3695e-09 deg/d
Q 2.731395263962523 9.3202e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      10519 days (28.80 yr)  
   first obs. used      1991-04-18  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5003  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:08:14  

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 27 CATAB v2.0f-lin.ifort 2020-Feb-22 23:08:27 2020-Feb-22 23:08

Alternate Designations
 1999 RO48 = 1991 HV = 2000 UW52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Apr-08 21:44 UT
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