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100573 (1997 HR2)
Classification: Main-belt Asteroid          SPK-ID: 2100573
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2343651486889961 3.945e-08  
a 2.398319901786341 8.0234e-09 au
q 1.836237301400407 9.4783e-08 au
i 3.067625474735364 4.7995e-06 deg
node 130.4502734801513 0.000108 deg
peri 172.2118769632447 0.00010887 deg
M 27.23764403597588 1.4064e-05 deg
tp 2458897.857757227633
(2020-Feb-18.35775723)
5.2837e-05 TDB
period 1356.622744215554
3.71
6.8077e-06
1.864e-08
d
yr
n .2653648566154362 1.3316e-09 deg/d
Q 2.960402502172276 9.9038e-09 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      8578 days (23.49 yr)  
   first obs. used      1997-04-29  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:26  

Additional Information
 Earth MOID = .820948 au 
 Jupiter MOID = 2.28495 au 
 T_jup = 3.488 
[ 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 16.8   n/a MPO474880  

100573 (1997 HR2)          Discovered 1997-Apr-29 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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