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100575 (1997 HD3)
Classification: Main-belt Asteroid          SPK-ID: 2100575
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07043280953864969 5.375e-08  
a 2.309040785729052 1.1453e-08 au
q 2.146408555850823 1.2582e-07 au
i 1.704492875242354 5.6608e-06 deg
node 29.06655810444667 0.00022406 deg
peri 205.0746358637462 0.00023173 deg
M 237.5833843380068 6.1919e-05 deg
tp 2459636.296462996971
(2022-Feb-25.79646300)
0.00022144 TDB
period 1281.580329847481
3.51
9.5347e-06
2.61e-08
d
yr
n .2809031877407506 2.0899e-09 deg/d
Q 2.47167301560728 1.2259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      8717 days (23.87 yr)  
   first obs. used      1997-04-03  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:48  

Additional Information
 Earth MOID = 1.13375 au 
 Jupiter MOID = 2.50914 au 
 T_jup = 3.582 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.71   n/a MPCxxxxx  

100575 (1997 HD3)          Discovered 1997-Apr-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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