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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 
[ 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

[ hide close-approach data ]
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 1.90620744062834 1.90620612801344 1.90620875325678 6.85261318070631 6.78745962803759 2436248.008621129 2.2109511506286 485.97077444722 54.9553649229619 -85.9283059537844 2115967.51587568 T 15 CATAB v2.0f-lin.ifort 2020-May-21 20:11:59 2020-May-21 20:12
2064-Oct-21 20:18 00:02 Jupiter 1.89724819595721 1.89724704982894 1.89724934208721 6.84829682396119 6.7827924591429 2475215.345913345 1.82958847253637 410.441828882915 54.9740195902085 -88.1987408496293 2071361.33909086 T 15 CATAB v2.0f-lin.ifort 2020-May-21 20:11:59 2020-May-21 20:12
2171-Jul-01 05:44 00:06 Jupiter 1.88638620140679 1.88638485148372 1.88638755144289 6.84508935404009 6.77917480514536 2514182.738564500 5.78878726450888 1298.45965243178 54.8501390022448 -88.3263881988871 2053855.49886464 T 15 CATAB v2.0f-lin.ifort 2020-May-21 20:11:59 2020-May-21 20:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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