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JPL Small-Body Database Browser
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56520 (2000 HO21)
Classification: Main-belt Asteroid          SPK-ID: 2056520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442752578639023 5.4422e-08  
a 2.239965983568807 1.3024e-08 au
q 1.916794313683048 1.1698e-07 au
i 5.070172371840199 4.9031e-06 deg
node 95.74337001942155 5.7976e-05 deg
peri 180.2241014513684 6.2707e-05 deg
M 311.1154073177944 3.0688e-05 deg
tp 2459166.776188861699
(2020-Nov-13.27618886)
0.00010533 TDB
period 1224.504996479209
3.35
1.068e-05
2.924e-08
d
yr
n .2939963503906473 2.5642e-09 deg/d
Q 2.563137653454566 1.4903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      8748 days (23.95 yr)  
   first obs. used      1996-01-25  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 09:20:50  

Additional Information
 Earth MOID = .900397 au 
 Jupiter MOID = 2.54041 au 
 T_jup = 3.616 
[ 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 16.0   n/a MPO468457  
diameter diameter 1.633 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56520 (2000 HO21)          Discovered 2000-Apr-28 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 HO21 = 2001 VP82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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