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108257 (2001 HN50)
Classification: Main-belt Asteroid          SPK-ID: 2108257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571373203402371 4.8126e-08  
a 2.804143665094002 1.6886e-08 au
q 2.36350804371208 1.4118e-07 au
i 9.877724287136147 4.9501e-06 deg
node 72.87734690620061 3.0226e-05 deg
peri 251.302857516734 3.4627e-05 deg
M 302.4966607016531 1.6724e-05 deg
tp 2459274.461403109923
(2021-Feb-28.96140311)
8.0281e-05 TDB
period 1715.137004615791
4.70
1.5493e-05
4.242e-08
d
yr
n .2098957686943754 1.896e-09 deg/d
Q 3.244779286475925 1.954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      7853 days (21.50 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:31:20  

Additional Information
 Earth MOID = 1.37359 au 
 Jupiter MOID = 2.11752 au 
 T_jup = 3.284 
[ 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 14.5   n/a MPO338031  
diameter diameter 3.706 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.245   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108257 (2001 HN50)          Discovered 2001-Apr-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 HN50 = 2002 RY124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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