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100895 (1998 HN146)
Classification: Main-belt Asteroid          SPK-ID: 2100895
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433337351457844 4.6896e-08  
a 3.132327772251914 2.6507e-08 au
q 2.683359532954174 1.536e-07 au
i 19.68195860405432 6.2107e-06 deg
node 186.2763247778686 1.3856e-05 deg
peri 71.94429939869264 2.4345e-05 deg
M 309.982434426904 2.0439e-05 deg
tp 2459281.832093467540
(2021-Mar-08.33209347)
0.0001162 TDB
period 2024.879709515322
5.54
2.5703e-05
7.037e-08
d
yr
n .1777883388866443 2.2567e-09 deg/d
Q 3.581296011549655 3.0306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      9367 days (25.65 yr)  
   first obs. used      1994-09-29  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:38  

Additional Information
 Earth MOID = 1.74677 au 
 Jupiter MOID = 1.63896 au 
 T_jup = 3.107 
[ 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 15.0   n/a MPO248020  
diameter diameter 5.519 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100895 (1998 HN146)          Discovered 1998-Apr-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HN146 = 1994 SN10 = 2004 LP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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