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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327872356524051 7.8093e-08  
a 2.293454224939914 8.1623e-09 au
q 1.988912778314814 1.7869e-07 au
i 23.61595078886946 8.3603e-06 deg
node 191.1484773436766 9.749e-06 deg
peri 21.98916718527519 1.8616e-05 deg
M 113.9625015203907 1.3643e-05 deg
tp 2458598.900637803823
(2019-Apr-25.40063780)
4.8182e-05 TDB
period 1268.625806399619
3.47
6.7725e-06
1.854e-08
d
yr
n .2837716197983437 1.5149e-09 deg/d
Q 2.597995671565014 9.2461e-09 au
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      7786 days (21.32 yr)  
   first obs. used      1998-04-01  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:10  

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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