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JPL Small-Body Database Browser
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20808 (2000 SR243)
Classification: Main-belt Asteroid          SPK-ID: 2020808
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05883967156067042 4.7341e-08  
a 3.199139974696561 2.2305e-08 au
q 3.010903629308804 1.5442e-07 au
i 11.31701401815578 5.5383e-06 deg
node 25.8974162557541 2.1848e-05 deg
peri 194.5748115157023 4.7202e-05 deg
M 217.4631897125106 4.3595e-05 deg
tp 2459428.009190399526
(2021-Aug-01.50919040)
0.00025512 TDB
period 2090.009646932421
5.72
2.1858e-05
5.984e-08
d
yr
n .172248008772775 1.8014e-09 deg/d
Q 3.387376320084318 2.3617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1110  
   data-arc span      10144 days (27.77 yr)  
   first obs. used      1992-02-28  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:47:02  

Additional Information
 Earth MOID = 2.00523 au 
 Jupiter MOID = 1.58248 au 
 T_jup = 3.162 
[ 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 13.6   n/a PDS3 (MPO 7949)  
diameter diameter 9.265 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20808 (2000 SR243)          Discovered 2000-Sep-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 SR243 = 1992 DW1 = 1995 TJ7 = 1998 HG131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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