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100880 (1998 HM93)
Classification: Main-belt Asteroid          SPK-ID: 2100880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457853054725879 3.893e-08  
a 3.154821236362944 2.4509e-08 au
q 2.694894658708365 1.3423e-07 au
i 4.605291105712506 5.1971e-06 deg
node 346.5617690557281 5.2436e-05 deg
peri 287.2634747665076 5.5555e-05 deg
M 288.9690303626311 2.015e-05 deg
tp 2459404.336717051265
(2021-Jul-08.83671705)
0.00011674 TDB
period 2046.730023265392
5.60
2.3851e-05
6.53e-08
d
yr
n .1758903206128032 2.0497e-09 deg/d
Q 3.614747814017524 2.8082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      8043 days (22.02 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57558  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:56:33  

Additional Information
 Earth MOID = 1.68333 au 
 Jupiter MOID = 1.5458 au 
 T_jup = 3.185 
[ 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 14.7   n/a MPO432536  
diameter diameter 6.179 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100880 (1998 HM93)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HM93 = 2003 ER37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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