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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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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433408162567787 4.6882e-08  
a 3.132080320050069 2.6329e-08 au
q 2.683125370392299 1.5352e-07 au
i 19.68266313563933 6.211e-06 deg
node 186.2766358168294 1.3856e-05 deg
peri 72.00036140237394 2.4356e-05 deg
M 345.4976738505185 2.0609e-05 deg
tp 2459282.061072904623
(2021-Mar-08.56107290)
0.00011627 TDB
period 2024.639767649557
5.54
2.5529e-05
6.989e-08
d
yr
n .177809408741354 2.242e-09 deg/d
Q 3.581035269707838 3.0102e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:15  

Additional Information
 Earth MOID = 1.7453 au 
 Jupiter MOID = 1.63847 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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