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305950 (2009 HL24)
Classification: Main-belt Asteroid          SPK-ID: 2305950
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0432352379999866 9.6713e-08  
a 2.891974149046948 3.5046e-08 au
q 2.766938958423094 2.8073e-07 au
i 12.07404920690029 8.2456e-06 deg
node 176.7058065962429 4.6976e-05 deg
peri 213.7614282606516 0.00010097 deg
M 282.3778205566263 9.5193e-05 deg
tp 2459387.823072614653
(2021-Jun-22.32307261)
0.00047904 TDB
period 1796.346187921656
4.92
3.2653e-05
8.94e-08
d
yr
n .2004068048912745 3.6429e-09 deg/d
Q 3.017009339670801 3.6561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      10096 days (27.64 yr)  
   first obs. used      1991-10-04  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:58:31  

Additional Information
 Earth MOID = 1.77568 au 
 Jupiter MOID = 2.17778 au 
 T_jup = 3.256 
[ 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 16.4   n/a MPO437358  
diameter diameter 3.387 km 0.770 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305950 (2009 HL24)          Discovered 2009-Apr-17 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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