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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2338353087462399 3.9473e-08  
q 1.837833621234827 9.4792e-08 au
tp 2457541.653733203282
(2016-Jun-02.15373320)
5.1393e-05 TDB
node 130.4702211214891 0.00010805 deg
peri 172.3482339856375 0.00010893 deg
i 3.066757517919721 4.7978e-06 deg
  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
 Jupiter MOID = 2.28495 au 
 T_jup = 3.488 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.558115153648747E-15 -3.733920923644537E-15 1.152474620867552E-12 -2.049287073324436E-14 3.175354622911937E-13 -8.716198211028993E-16
q -3.733920923644537E-15 8.985487134873387E-15 -2.708141148125723E-12 4.634827990456041E-14 -7.48566105734353E-13 2.015076754216356E-15
tp 1.152474620867552E-12 -2.708141148125723E-12 2.641260493578949E-9 -4.218194695065298E-11 7.527734156745334E-10 -2.215553182121155E-12
node -2.049287073324436E-14 4.634827990456041E-14 -4.218194695065298E-11 1.167499021680058E-8 -1.166891538008464E-8 2.870867003903764E-10
peri 3.175354622911937E-13 -7.48566105734353E-13 7.527734156745334E-10 -1.166891538008464E-8 1.186480115529614E-8 -2.872821631827672E-10
i -8.716198211028993E-16 2.015076754216356E-15 -2.215553182121155E-12 2.870867003903764E-10 -2.872821631827672E-10 2.30191151474923E-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 16.8   n/a MPO474880  

100573 (1997 HR2)          Discovered 1997-Apr-29 by Spacewatch at Kitt Peak
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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