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243453 (2009 HX85)
Classification: Jupiter Trojan          SPK-ID: 2243453
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176142199468706 6.4206e-08  
a 5.144971553273231 2.7771e-07 au
q 4.53984973738616 4.6103e-07 au
i 18.48207158099959 6.4067e-06 deg
node 193.7769471726656 2.0605e-05 deg
peri 93.47213755904077 4.9818e-05 deg
M 245.9972715950156 5.7331e-05 deg
tp 2459950.350395947916
(2023-Jan-05.85039595)
0.00077522 TDB
period 4262.583442871387
11.67
0.00034512
9.449e-07
d
yr
n .08445582469524507 6.8381e-09 deg/d
Q 5.750093369160301 3.1037e-07 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      6456 days (17.68 yr)  
   first obs. used      2001-08-27  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53298  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:13:03  

Additional Information
 Earth MOID = 3.58944 au 
 Jupiter MOID = .116071 au 
 T_jup = 2.884 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO437136  
diameter diameter 15.137 km 0.526 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.037   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

243453 (2009 HX85)          Discovered 2009-Apr-29 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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