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100861 (1998 HX53)
Classification: Main-belt Asteroid          SPK-ID: 2100861
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04517876598107174 4.052e-08  
a 2.985973936190385 1.8546e-08 au
q 2.85107131850166 1.1888e-07 au
i 11.16145102555438 3.8217e-06 deg
node 185.9922353539077 1.8714e-05 deg
peri 349.7541521039699 4.3207e-05 deg
M 164.4425326824562 3.9932e-05 deg
tp 2458339.626970443195
(2018-Aug-09.12697044)
0.00020691 TDB
period 1884.635839554383
5.16
1.7558e-05
4.807e-08
d
yr
n .1910183349188144 1.7796e-09 deg/d
Q 3.120876553879111 1.9383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      8292 days (22.70 yr)  
   first obs. used      1998-03-22  
   last obs. used      2020-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50912  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:24  

Additional Information
 Earth MOID = 1.85443 au 
 Jupiter MOID = 1.83788 au 
 T_jup = 3.227 
[ 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 14.83   n/a E2021B55  
diameter diameter 4.318 km 0.679 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100861 (1998 HX53)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HX53 = 2000 SA215 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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