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JPL Small-Body Database Browser
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20203 (1997 ED25)
Classification: Main-belt Asteroid          SPK-ID: 2020203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06081829787284523 4.714e-08  
a 2.78132665115449 1.7733e-08 au
q 2.612171098402893 1.334e-07 au
i 6.519684813644657 5.0226e-06 deg
node 90.43717849943349 4.5855e-05 deg
peri 269.6910617040852 6.3311e-05 deg
M 75.74211856823371 4.3182e-05 deg
tp 2458244.039533947934
(2018-May-05.53953395)
0.00020391 TDB
period 1694.245819954708
4.64
1.6203e-05
4.436e-08
d
yr
n .212483923973691 2.0321e-09 deg/d
Q 2.950482203906087 1.8812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      975  
   data-arc span      9843 days (26.95 yr)  
   first obs. used      1992-01-29  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:37:50  

Additional Information
 Earth MOID = 1.61789 au 
 Jupiter MOID = 2.3431 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO459006  
diameter diameter 3.356 km 0.924 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20203 (1997 ED25)          Discovered 1997-Mar-07 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 ED25 = 1998 KX40 = 1999 RK185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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