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308388 (2005 SN22)
Classification: Main-belt Asteroid          SPK-ID: 2308388
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743773352390473 6.9207e-08  
a 3.123036137186888 3.747e-08 au
q 2.578449417728991 2.1892e-07 au
i 5.892852082719066 7.6922e-06 deg
node 46.52966129851026 6.3565e-05 deg
peri 331.4233848117866 6.8264e-05 deg
M 229.8001435627216 2.7455e-05 deg
tp 2459729.574562311599
(2022-May-30.07456231)
0.00016364 TDB
period 2015.876588609103
5.52
3.6279e-05
9.933e-08
d
yr
n .178582360663452 3.2139e-09 deg/d
Q 3.667622856644785 4.4004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      7086 days (19.40 yr)  
   first obs. used      2000-11-29  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6045  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:57  

Additional Information
 Earth MOID = 1.58263 au 
 Jupiter MOID = 1.79576 au 
 T_jup = 3.184 
[ 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 15.9   n/a MPO433983  
diameter diameter 3.797 km 0.628 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308388 (2005 SN22)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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