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JPL Small-Body Database Browser
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100858 (1998 HB44)
Classification: Main-belt Asteroid          SPK-ID: 2100858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1202038501459266 5.9081e-08  
a 3.148410256684574 3.4977e-08 au
q 2.769959221992163 1.8216e-07 au
i 11.66051201906799 7.132e-06 deg
node 35.38640268447982 2.3599e-05 deg
peri 212.0239348590979 3.3009e-05 deg
M 309.7747082388596 2.2984e-05 deg
tp 2459285.178961052086
(2021-Mar-11.67896105)
0.00013106 TDB
period 2040.494388089223
5.59
3.4003e-05
9.31e-08
d
yr
n .1764278314615284 2.94e-09 deg/d
Q 3.526861291376985 3.9182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      15981 days (43.75 yr)  
   first obs. used      1976-05-02  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:31  

Additional Information
 Earth MOID = 1.7651 au 
 Jupiter MOID = 1.51305 au 
 T_jup = 3.165 
[ 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 14.6   n/a MPO337988  
diameter diameter 7.515 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100858 (1998 HB44)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HB44 = 1976 JV10 = 2000 TB68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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