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78576 (2002 RB228)
Classification: Main-belt Asteroid          SPK-ID: 2078576
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07768416627803518 4.8242e-08  
a 3.177167626664509 2.8066e-08 au
q 2.930352008461513 1.5038e-07 au
i 10.11029658816306 5.222e-06 deg
node 61.25016026384072 2.9745e-05 deg
peri 255.9173090501341 4.6422e-05 deg
M 68.97179025369917 3.5398e-05 deg
tp 2458604.196764522083
(2019-Apr-30.69676452)
0.00020399 TDB
period 2068.514739827247
5.66
2.7408e-05
7.504e-08
d
yr
n .1740379186420812 2.3061e-09 deg/d
Q 3.423983244867506 3.0246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      7543 days (20.65 yr)  
   first obs. used      2000-03-05  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:20  

Additional Information
 Earth MOID = 1.93834 au 
 Jupiter MOID = 1.81051 au 
 T_jup = 3.172 
[ 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 14.4   n/a MPO453207  
diameter diameter 6.276 km 0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.4497 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.103   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78576 (2002 RB228)          Discovered 2002-Sep-14 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 RB228 = 2000 EZ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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