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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1457915992522227 3.8729e-08  
a 3.15431802989409 2.4306e-08 au
q 2.69444495976571 1.3375e-07 au
i 4.605479939305901 5.1956e-06 deg
node 346.5632125557887 5.1711e-05 deg
peri 287.3350454883344 5.4887e-05 deg
M 324.0879205170539 2.0352e-05 deg
tp 2459404.624294744305
(2021-Jul-09.12429474)		 0.0001168 TDB
period 2046.240350488363
5.60		 2.3652e-05
6.476e-08		 d
yr
n .1759324118078705 2.0335e-09 deg/d
Q 3.61419110002247 2.785e-08 au
   Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      8067 days (22.09 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:11  

Additional Information
 Earth MOID = 1.68105 au 
 Jupiter MOID = 1.5457 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 14.80   n/a E2021B55  
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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