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100862 (1998 HF54)
Classification: Main-belt Asteroid          SPK-ID: 2100862
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080670394916292 4.4699e-08  
a 3.176821976438904 2.8843e-08 au
q 2.833512230453206 1.498e-07 au
i 4.88058127945362 5.5327e-06 deg
node 198.6097883451843 4.4302e-05 deg
peri 32.34729812479438 4.907e-05 deg
M 340.6708170348828 2.197e-05 deg
tp 2459311.544931545765
(2021-Apr-07.04493155)
0.00012654 TDB
period 2068.177192415182
5.66
2.8166e-05
7.711e-08
d
yr
n .1740663233886639 2.3706e-09 deg/d
Q 3.520131722424603 3.196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1992-03-03  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:56:32  

Additional Information
 Earth MOID = 1.82349 au 
 Jupiter MOID = 1.46609 au 
 T_jup = 3.186 
[ 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 15.06   n/a E2021B55  
diameter diameter 5.561 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100862 (1998 HF54)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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