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243454 (2009 HH92)
Classification: Main-belt Asteroid          SPK-ID: 2243454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02834687438067086 5.5963e-08  
a 2.78748191940956 4.0179e-08 au
q 2.708465519601666 1.5924e-07 au
i 5.224777915755314 7.9733e-06 deg
node 52.9173345999655 7.6361e-05 deg
peri 210.4732945399915 0.00017059 deg
M 104.5651938894406 0.00015137 deg
tp 2458506.756760916913
(2019-Jan-23.25676092)
0.00071549 TDB
period 1699.873155285767
4.65
3.6753e-05
1.006e-07
d
yr
n .2117805077870531 4.5789e-09 deg/d
Q 2.866498319217454 4.1318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6076 days (16.64 yr)  
   first obs. used      2001-09-23  
   last obs. used      2018-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64524  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:56  

Additional Information
 Earth MOID = 1.69458 au 
 Jupiter MOID = 2.13224 au 
 T_jup = 3.324 
[ 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 16.1   n/a MPO475965  
diameter diameter 4.197 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243454 (2009 HH92)          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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