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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176264946527773 5.197e-08  
a 2.684511779423064 1.5928e-08 au
q 2.368742068955439 1.4517e-07 au
i 7.847727193592406 3.9257e-06 deg
node 266.7851275423063 3.4758e-05 deg
peri 283.5889207035526 3.9521e-05 deg
M 279.5501340651264 2.1487e-05 deg
tp 2459559.520478774831
(2021-Dec-11.02047877)
9.6936e-05 TDB
period 1606.557958263953
4.40
1.4298e-05
3.915e-08
d
yr
n .2240815515856124 1.9943e-09 deg/d
Q 3.000281489890688 1.7801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      10007 days (27.40 yr)  
   first obs. used      1993-10-24  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51733  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:19:07  

Additional Information
 Earth MOID = 1.3827 au 
 Jupiter MOID = 2.04126 au 
 T_jup = 3.352 
[ 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 14.90   n/a E2021B10  
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

Alternate Designations
 1997 UB20 = 2000 JB53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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