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305963 (2009 HS53)
Classification: Main-belt Asteroid          SPK-ID: 2305963
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09668744778815237 5.3788e-08  
a 3.194693615575979 4.7024e-08 au
q 2.885806843420832 1.7822e-07 au
i 5.273884732159203 6.7906e-06 deg
node 151.3649734885436 5.835e-05 deg
peri 155.0933824412659 6.7072e-05 deg
M 257.0690163308163 3.4714e-05 deg
tp 2459596.828917691028
(2022-Jan-17.32891769)
0.0002062 TDB
period 2085.653927671947
5.71
4.605e-05
1.261e-07
d
yr
n .1726077347845718 3.811e-09 deg/d
Q 3.503580387731124 5.1571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      7551 days (20.67 yr)  
   first obs. used      1999-08-21  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:02:01  

Additional Information
 Earth MOID = 1.87211 au 
 Jupiter MOID = 1.73613 au 
 T_jup = 3.182 
[ 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 15.6   n/a MPO433971  

305963 (2009 HS53)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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