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JPL Small-Body Database Browser
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71725 (2000 HN9)
Classification: Main-belt Asteroid          SPK-ID: 2071725
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378489586011767 4.6936e-08  
a 3.146337176910451 2.2393e-08 au
q 2.712617873665179 1.4533e-07 au
i 2.216602590344407 4.8333e-06 deg
node 84.4004251754091 0.0001309 deg
peri 65.97962183691405 0.00013205 deg
M 201.2273757316943 1.6816e-05 deg
tp 2459499.540884511700
(2021-Oct-12.04088451)
9.7791e-05 TDB
period 2038.479365795934
5.58
2.1762e-05
5.958e-08
d
yr
n .1766022291127957 1.8853e-09 deg/d
Q 3.580056480155722 2.5479e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      7180 days (19.66 yr)  
   first obs. used      1998-12-11  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5762  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:17:47  

Additional Information
 Earth MOID = 1.72513 au 
 Jupiter MOID = 1.42202 au 
 T_jup = 3.193 
[ 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 14.4   n/a MPO412623  
diameter diameter 6.806 km 0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71725 (2000 HN9)          Discovered 2000-Apr-27 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 HN9 = 1998 YO31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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