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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07033558704900295 5.3745e-08  
a 2.309018412146292 1.149e-08 au
q 2.146612246621026 1.258e-07 au
i 1.704512951089903 5.661e-06 deg
node 29.06297748136809 0.00022405 deg
peri 205.0938218335225 0.00023175 deg
M 292.6136840939411 6.2129e-05 deg
tp 2459636.388116026932
(2022-Feb-25.88811603)
0.00022174 TDB
period 1281.561702973743
3.51
9.5657e-06
2.619e-08
d
yr
n .280907270531457 2.0967e-09 deg/d
Q 2.471424577671558 1.2298e-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 = 1.13569 au 
 Jupiter MOID = 2.50827 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457643.5 (2016-Sep-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07053910317912271 5.3662e-08  
q 2.145994550154163 1.2558e-07 au
tp 2457075.377965343003
(2015-Feb-21.87796534)
0.00021639 TDB
node 29.09801999401263 0.0002238 deg
peri 205.5681439150164 0.00023148 deg
i 1.705900077655025 5.6634e-06 deg
  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
 Jupiter MOID = 2.50827 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.879636166535859E-15 -6.715234490138492E-15 -3.350532795137399E-12 2.165564692552417E-15 -8.158764952482167E-13 9.638992560539255E-16
q -6.715234490138492E-15 1.577119474714688E-14 8.258124649915888E-12 -5.902589253775924E-15 2.034507484062665E-12 -2.072738564771583E-15
tp -3.350532795137399E-12 8.258124649915888E-12 4.682318352342204E-8 -2.18409037007278E-10 1.284371728591483E-8 8.326858383233531E-12
node 2.165564692552417E-15 -5.902589253775924E-15 -2.18409037007278E-10 5.008568167259968E-8 -5.012161099110303E-8 -2.656306623070715E-10
peri -8.158764952482167E-13 2.034507484062665E-12 1.284371728591483E-8 -5.012161099110303E-8 5.35840967329089E-8 2.678155527067634E-10
i 9.638992560539255E-16 -2.072738564771583E-15 8.326858383233531E-12 -2.656306623070715E-10 2.678155527067634E-10 3.207361538384827E-11

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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