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JPL Small-Body Database Browser
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201721 (2003 UP189)
Classification: Main-belt Asteroid          SPK-ID: 2201721
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012555825629596 4.442e-08  
a 2.769227064310523 2.5549e-08 au
q 2.488827364664646 1.234e-07 au
i 6.542455698282745 5.9506e-06 deg
node 242.3010342894702 4.5266e-05 deg
peri 69.51950745507058 5.5218e-05 deg
M 204.2108069760653 3.4062e-05 deg
tp 2459328.901958677681
(2021-Apr-24.40195868)
0.00016281 TDB
period 1683.202153076678
4.61
2.3294e-05
6.378e-08
d
yr
n .2138780534126374 2.9599e-09 deg/d
Q 3.049626763956399 2.8136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      8411 days (23.03 yr)  
   first obs. used      1996-02-18  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59852  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:40:20  

Additional Information
 Earth MOID = 1.48307 au 
 Jupiter MOID = 2.17336 au 
 T_jup = 3.321 
[ 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 15.8   n/a MPO433322  
diameter diameter 3.878 km 1.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201721 (2003 UP189)          Discovered 2003-Oct-22 by Spacewatch at Kitt Peak
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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