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359297 (2009 HN77)
Classification: Main-belt Asteroid          SPK-ID: 2359297
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 .1196761568724104 1.0954e-07  
a 2.717506925501456 4.4046e-08 au
q 2.392286140383282 2.7753e-07 au
i 7.81058830932783 1.0397e-05 deg
node 30.99135455899125 5.3732e-05 deg
peri 171.186538946048 6.2121e-05 deg
M 180.1785681182436 3.8433e-05 deg
tp 2459817.822334820570
(2022-Aug-26.32233482)
0.00018632 TDB
period 1636.267921216885
4.48
3.9781e-05
1.089e-07
d
yr
n .2200128691224782 5.349e-09 deg/d
Q 3.04272771061963 4.9317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      5733 days (15.70 yr)  
   first obs. used      2004-02-12  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:15:44  

Additional Information
 Earth MOID = 1.38916 au 
 Jupiter MOID = 1.9141 au 
 T_jup = 3.336 
[ 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 16.7   n/a MPO494868  
diameter diameter 3.395 km 0.768 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

359297 (2009 HN77)          Discovered 2009-Apr-22 by La Sagra at La Sagra
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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