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100207 (1994 HB1)
Classification: Main-belt Asteroid          SPK-ID: 2100207
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 .1256977233091904 4.0197e-08  
a 2.372380837741416 9.7941e-09 au
q 2.07417796761497 9.6441e-08 au
i 4.168108558578418 4.3186e-06 deg
node 194.8679108639342 5.4219e-05 deg
peri 202.0166417524436 5.6966e-05 deg
M 273.4451858371359 2.0143e-05 deg
tp 2459521.395602462128
(2021-Nov-02.89560246)
7.5911e-05 TDB
period 1334.673501453029
3.65
8.2651e-06
2.263e-08
d
yr
n .2697288884570467 1.6703e-09 deg/d
Q 2.670583707867862 1.1025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      9613 days (26.32 yr)  
   first obs. used      1994-04-19  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58224  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:06  

Additional Information
 Earth MOID = 1.08058 au 
 Jupiter MOID = 2.72916 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457220.5 (2015-Jul-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254493159032099 4.0096e-08  
q 2.074664967358411 9.6018e-08 au
tp 2456855.355873606920
(2014-Jul-16.85587361)
6.7418e-05 TDB
node 194.9399443051924 5.4264e-05 deg
peri 202.4718134231024 5.7033e-05 deg
i 4.16564502891861 4.3175e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      9613 days (26.32 yr)  
   first obs. used      1994-04-19  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58224  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:06  

Additional Information
 Jupiter MOID = 2.72916 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.607684009773584E-15 -3.834994839596023E-15 -3.564813884771105E-13 -3.847367367637192E-15 -6.839074488309312E-14 1.286058342122579E-15
q -3.834994839596023E-15 9.21952711711028E-15 1.094956832484165E-12 7.23958383171185E-15 2.297768375937683E-13 -3.045478310534691E-15
tp -3.564813884771105E-13 1.094956832484165E-12 4.545196735676926E-9 -1.303584391545072E-11 1.197551128752645E-9 2.524477353578961E-13
node -3.847367367637192E-15 7.23958383171185E-15 -1.303584391545072E-11 2.944594514511439E-9 -2.939800295839284E-9 1.716061407969994E-11
peri -6.839074488309312E-14 2.297768375937683E-13 1.197551128752645E-9 -2.939800295839284E-9 3.252777839803409E-9 -1.704520677177955E-11
i 1.286058342122579E-15 -3.045478310534691E-15 2.524477353578961E-13 1.716061407969994E-11 -1.704520677177955E-11 1.864116766545412E-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 16.44   n/a E2021B55  

100207 (1994 HB1)          Discovered 1994-Apr-19 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1994 HB1 = 1994 JY1 = 1999 WE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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