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58831 (1998 HN30)
Classification: Main-belt Asteroid          SPK-ID: 2058831
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01923711355436535 3.3238e-08  
a 2.714796230358724 1.2786e-08 au
q 2.66257138699835 9.1128e-08 au
i 3.10995376311897 3.8457e-06 deg
node 101.9311125855927 8.5858e-05 deg
peri 139.4937107612964 0.00015429 deg
M 341.5543660031565 0.00012857 deg
tp 2459284.213474841199
(2021-Mar-10.71347484)
0.00058351 TDB
period 1633.820282240716
4.47
1.1542e-05
3.16e-08
d
yr
n .2203424721269069 1.5566e-09 deg/d
Q 2.767021073719098 1.3032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1215  
   data-arc span      17954 days (49.16 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:32:37  

Additional Information
 Earth MOID = 1.64815 au 
 Jupiter MOID = 2.20473 au 
 T_jup = 3.359 
[ 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 14.93   n/a E2021B10  

58831 (1998 HN30)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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