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JPL Small-Body Database Browser
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52616 (1997 UB20)
Classification: Main-belt Asteroid          SPK-ID: 2052616
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177666048582135 5.4986e-08  
a 2.683986516035 1.705e-08 au
q 2.367902536556333 1.513e-07 au
i 7.848440900646397 3.9358e-06 deg
node 266.7839819011483 4.0979e-05 deg
peri 283.671802396513 4.5055e-05 deg
M 234.6537950582016 2.1393e-05 deg
tp 2459559.713452288444
(2021-Dec-11.21345229)
9.7144e-05 TDB
period 1606.086462029836
4.40
1.5304e-05
4.19e-08
d
yr
n .224147334848348 2.1358e-09 deg/d
Q 3.000070495513667 1.9057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      893  
   data-arc span      9598 days (26.28 yr)  
   first obs. used      1993-10-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:31:48  

Additional Information
 Earth MOID = 1.38249 au 
 Jupiter MOID = 2.04249 au 
 T_jup = 3.352 
[ 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 14.8   n/a MPO449340  
diameter diameter 3.299 km 0.838 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52616 (1997 UB20)          Discovered 1997-Oct-25 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UB20 = 2000 JB53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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