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JPL Small-Body Database Browser
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390983 (2005 SO21)
Classification: Main-belt Asteroid          SPK-ID: 2390983
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2162314705521853 8.1634e-08  
a 3.108048813432009 7.5677e-08 au
q 2.435990847955631 2.4602e-07 au
i 16.06915152227091 1.4424e-05 deg
node 203.0292151017126 3.0797e-05 deg
peri 80.97023555318729 4.9444e-05 deg
M 320.0446540281202 4.9254e-05 deg
tp 2459222.627622450394
(2021-Jan-08.12762245)
0.0002796 TDB
period 2001.382847202001
5.48
7.3097e-05
2.001e-07
d
yr
n .17987562974435 6.5696e-09 deg/d
Q 3.780106778908388 9.2041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      5240 days (14.35 yr)  
   first obs. used      2005-09-25  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:36:43  

Additional Information
 Earth MOID = 1.48376 au 
 Jupiter MOID = 1.64502 au 
 T_jup = 3.124 
[ 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 15.6   n/a MPO342135  

390983 (2005 SO21)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ 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
1919-Jun-03 02:24 00:20 Jupiter 1.9995921153081 1.99958410062762 1.99960048472272 1.05931323416431 0.524356017673711 2422112.600069527 19.8459447245363 77087.2170500331 733.441282602105 -66.627093178001 1773223.34558642 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
1929-Apr-23 01:20 00:10 Jupiter 1.60986012773107 1.6098577994732 1.60986245638655 4.37364561851981 4.25164470447898 2425724.555683387 9.56171550136876 1578.29544778194 61.1244883115666 -87.2068725723079 853470.285519027 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2000-Dec-15 10:37 00:02 Jupiter 1.64266631471283 1.64266474133578 1.64266788809044 3.85629740201132 3.72018171842069 2451893.942111670 1.86911809799602 346.993638596814 69.6573705766716 87.677666728165 718923.707087224 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2011-Mar-24 23:03 < 00:01 Jupiter 1.97154318950406 1.9715417921815 1.97154458682663 5.33081281528761 5.24960160617385 2455645.460095022 0.556643058052335 98.7941113314601 63.0126332205444 -73.1420935918092 1272262.25852516 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2072-Sep-08 18:20 00:08 Jupiter 1.77367206745209 1.77366805036755 1.77367608459581 2.90231580571169 2.73282471528496 2478094.263664220 8.12500570096602 643.56401102711 147.841550772347 64.3723704964546 358201.529171886 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2082-Nov-18 19:50 00:08 Jupiter 1.78645542393411 1.7864508694389 1.78645997864206 4.95227628038024 4.85559148896542 2481817.326681653 7.54662055216625 1042.71035024884 55.3054476050257 -78.3110045525216 1102849.02103554 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2144-Aug-25 03:11 00:25 Jupiter 1.93483149783681 1.93482387269569 1.93483913759924 0.887970670654633 n/a 2504376.632799438 25.1620354711238 8905.77712447322 127.052688264226 87.6909960153442 2275748.86750155 F 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
2154-Jul-16 13:02 00:15 Jupiter 1.68350257117751 1.68349860972172 1.68350653367801 4.4786640156746 4.36487905297486 2507989.043100909 15.2613127638478 2248.21221533467 58.7377725352785 -86.0039855927128 890320.11371792 T 8 CATAB v2.0f-lin.ifort 2020-Feb-26 04:36:45 2020-Feb-26 04:36
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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