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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04454096037736001 9.6906e-08  
a 2.891486107218388 3.3757e-08 au
q 2.762696539085087 2.8231e-07 au
i 12.0720157028762 8.2775e-06 deg
node 176.8703189431895 4.6997e-05 deg
peri 213.032161217921 9.9155e-05 deg
M 202.9271248523354 9.2347e-05 deg
tp 2459384.071775980567
(2021-Jun-18.57177598)
0.00046837 TDB
period 1795.891487233646
4.92
3.145e-05
8.611e-08
d
yr
n .2004575457699488 3.5104e-09 deg/d
Q 3.02027567535169 3.5261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   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      .66477  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:10  

Additional Information
 Earth MOID = 1.77039 au 
 Jupiter MOID = 2.18362 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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