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108261 (2001 HX51)
Classification: Main-belt Asteroid          SPK-ID: 2108261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09090488898519891 4.1956e-08  
a 3.104900208768388 2.8644e-08 au
q 2.822649599980176 1.416e-07 au
i 21.0611042655255 5.2712e-06 deg
node 208.8860971365981 1.2104e-05 deg
peri 254.3582987111184 3.0943e-05 deg
M 282.3020431777844 2.9173e-05 deg
tp 2459431.797553336568
(2021-Aug-05.29755334)
0.0001635 TDB
period 1998.342370268998
5.47
2.7654e-05
7.571e-08
d
yr
n .1801493104264912 2.493e-09 deg/d
Q 3.387150817556599 3.1248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      8024 days (21.97 yr)  
   first obs. used      1998-11-10  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52376  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:19:03  

Additional Information
 Earth MOID = 1.91637 au 
 Jupiter MOID = 1.93144 au 
 T_jup = 3.112 
[ 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 14.6   n/a MPO453540  
diameter diameter 7.910 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108261 (2001 HX51)          Discovered 2001-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 HX51 = 1998 VP19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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