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100841 (1998 HU19)
Classification: Main-belt Asteroid          SPK-ID: 2100841
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.


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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 .1327872232171441 7.6419e-08  
a 2.293454226288163 7.7931e-09 au
q 1.988912808003734 1.7441e-07 au
i 23.61595245426899 7.924e-06 deg
node 191.14848063 8.5229e-06 deg
peri 21.98916031246339 1.6442e-05 deg
M 113.9625040247856 1.2637e-05 deg
tp 2458598.900628624303
(2019-Apr-25.40062862)
4.4382e-05 TDB
period 1268.625807518297
3.47
6.4661e-06
1.77e-08
d
yr
n .2837716195481131 1.4464e-09 deg/d
Q 2.597995644572592 8.8279e-09 au
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:57  

Additional Information
 Earth MOID = .996648 au 
 Jupiter MOID = 2.37254 au 
 T_jup = 3.475 
[ 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 15.5   n/a MPO474883  
diameter diameter 4.684 km 1.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.058   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

100841 (1998 HU19)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HU19 = 1999 RV30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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