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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522003468987789 1.0305e-07  
a 3.151644737969669 3.2869e-08 au
q 2.671963315548974 3.3296e-07 au
i 27.36407120086634 1.0417e-05 deg
node 198.0447051193639 1.071e-05 deg
peri 159.3496905179587 2.6865e-05 deg
M 241.4545969637611 2.4175e-05 deg
tp 2459673.455781675562
(2022-Apr-03.95578168)
0.00014289 TDB
period 2043.639611475638
5.60
3.197e-05
8.753e-08
d
yr
n .1761563036743338 2.7558e-09 deg/d
Q 3.631326160390363 3.7872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      5412 days (14.82 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:01:25  

Additional Information
 Earth MOID = 1.6825 au 
 Jupiter MOID = 1.87297 au 
 T_jup = 3.017 
[ 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 15.2   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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1958-Feb-13 12:12 00:02 Jupiter 1.9062074617594 1.90620616050154 1.90620876302951 6.85261328869576 6.78745973778936 2436248.008661784 2.16969445802644 473.610927166245 54.9413543457634 -85.9379935063895 2208192.86685472 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:01:26 2020-Nov-11 19:01
2064-Oct-21 20:18 00:02 Jupiter 1.89724819447154 1.89724705122244 1.89724933772216 6.84829691397329 6.78279254997275 2475215.345875705 1.75584704322916 393.982164704016 54.9476449191271 -88.1794206696199 2172628.24379316 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:01:26 2020-Nov-11 19:01
2171-Jul-01 05:43 00:06 Jupiter 1.88638618826215 1.88638484823789 1.88638752838966 6.84508943808364 6.77917488954453 2514182.738455522 5.60657371861005 1258.58619397746 54.8089434451496 -88.309512523392 2154484.90840102 T 16 CATAB v2.0f-lin.ifort 2020-Nov-11 19:01:26 2020-Nov-11 19:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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