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100856 (1998 HX43)
Classification: Main-belt Asteroid          SPK-ID: 2100856
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324750507422123 4.5663e-08  
a 2.386360696909262 9.6716e-09 au
q 2.070227442496986 1.0979e-07 au
i 2.186270578543998 3.8071e-06 deg
node 67.45897650184338 0.00012315 deg
peri 134.0645541639942 0.00012428 deg
M .8908441026868149 1.5271e-05 deg
tp 2458997.168024749203
(2020-May-27.66802475)
5.7119e-05 TDB
period 1346.4882201824
3.69
8.1857e-06
2.241e-08
d
yr
n .2673621607705066 1.6254e-09 deg/d
Q 2.702493951321537 1.0953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8596 days (23.53 yr)  
   first obs. used      1996-11-09  
   last obs. used      2020-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:52  

Additional Information
 Earth MOID = 1.06779 au 
 Jupiter MOID = 2.25402 au 
 T_jup = 3.522 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457266.5 (2015-Sep-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332119106573014 4.5607e-08  
q 2.068238162016002 1.0972e-07 au
tp 2457650.461335602588
(2016-Sep-18.96133560)
5.8081e-05 TDB
node 67.47551633859355 0.00012316 deg
peri 134.1185996674119 0.00012428 deg
i 2.186503135634975 3.8068e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8596 days (23.53 yr)  
   first obs. used      1996-11-09  
   last obs. used      2020-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:52  

Additional Information
 Jupiter MOID = 2.25402 au 
 T_jup = 3.522 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.080001407466482E-15 -4.989479916345448E-15 -2.480881924246782E-13 4.708653224140798E-15 1.162990541735385E-14 -1.374285026341505E-15
q -4.989479916345448E-15 1.203860370316521E-14 4.809750688683223E-13 -9.955451161460118E-15 -6.741210046628228E-14 3.29347855926464E-15
tp -2.480881924246782E-13 4.809750688683223E-13 3.373453598640874E-9 -6.275145758210343E-12 9.824802753432284E-10 1.665674157323546E-12
node 4.708653224140798E-15 -9.955451161460118E-15 -6.275145758210343E-12 1.516889011387177E-8 -1.515940348584304E-8 -5.388123089439782E-11
peri 1.162990541735385E-14 -6.741210046628228E-14 9.824802753432284E-10 -1.515940348584304E-8 1.544566841205618E-8 5.427203636188485E-11
i -1.374285026341505E-15 3.29347855926464E-15 1.665674157323546E-12 -5.388123089439782E-11 5.427203636188485E-11 1.449210021882401E-11

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 16.2   n/a MPO412742  

100856 (1998 HX43)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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