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308399 (2005 SZ55)
Classification: Main-belt Asteroid          SPK-ID: 2308399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522003518634511 1.0391e-07  
a 3.151644740196557 3.3605e-08 au
q 2.671963301790046 3.3502e-07 au
i 27.36407087788866 1.1327e-05 deg
node 198.044705140434 1.1491e-05 deg
peri 159.3496890811269 2.7491e-05 deg
M 241.4545974272714 2.4289e-05 deg
tp 2459673.455779757562
(2022-Apr-03.95577976)
0.00014334 TDB
period 2043.639613641629
5.60
3.2686e-05
8.949e-08
d
yr
n .1761563034876311 2.8174e-09 deg/d
Q 3.631326178603068 3.872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5354 days (14.66 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:57  

Additional Information
 Earth MOID = 1.6825 au 
 Jupiter MOID = 1.87297 au 
 T_jup = 3.017 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457095.5 (2015-Mar-14.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516734205258941 1.0432e-07  
q 2.674542694986719 3.3644e-07 au
tp 2457632.214915225738
(2016-Aug-31.71491523)
0.00012874 TDB
node 198.0658579627522 1.149e-05 deg
peri 159.8774208097745 2.7388e-05 deg
i 27.36047514161477 1.1326e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5354 days (14.66 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:57  

Additional Information
 Jupiter MOID = 1.87297 au 
 T_jup = 3.017 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.088330177094998E-14 -3.497824242073431E-14 5.70469733033843E-12 5.623506753005638E-15 1.43931456840848E-12 -3.346592542562824E-14
q -3.497824242073431E-14 1.131951892235E-13 -1.674406898424598E-11 -1.925790300686011E-14 -4.394156745499302E-12 1.127444749978294E-13
tp 5.70469733033843E-12 -1.674406898424598E-11 1.65729763576876E-8 5.646345696875955E-12 3.167715360751148E-9 1.875063253294596E-11
node 5.623506753005638E-15 -1.925790300686011E-14 5.646345696875955E-12 1.320265291530479E-10 -1.153815063381313E-10 1.145068199355587E-11
peri 1.43931456840848E-12 -4.394156745499302E-12 3.167715360751148E-9 -1.153815063381313E-10 7.501088044927476E-10 -8.002896662211139E-12
i -3.346592542562824E-14 1.127444749978294E-13 1.875063253294596E-11 1.145068199355587E-11 -8.002896662211139E-12 1.282776444478494E-10

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 15.2   n/a MPO455272  
diameter diameter 5.286 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308399 (2005 SZ55)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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