+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58481 (1996 ST4) Classification: Main-belt Asteroid          SPK-ID: 2058481 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1562946721558506 7.216e-08   a 2.557277643731338 1.4221e-08 au q 2.157588772792862 1.9147e-07 au i 3.057352442624776 4.6383e-06 deg node 22.69557729563982 0.00010773 deg peri 289.3263765886493 0.0001092 deg M 23.75547509398165 1.402e-05 deg tp 2459101.934150452766 (2020-Sep-09.43415045) 5.8399e-05 TDB period 1493.706427533996 4.09 1.246e-05 3.411e-08 d yr n .2410112143618037 2.0104e-09 deg/d Q 2.956966514669813 1.6444e-08 au   Orbit Determination Parameters    # obs. used (total)      505      data-arc span      8793 days (24.07 yr)      first obs. used      1996-09-20      last obs. used      2020-10-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56948      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 11:30:30   Additional Information  Earth MOID = 1.14385 au   Jupiter MOID = 2.31109 au   T_jup = 3.418  [ hide covariance matrix ] Orbital Elements at Epoch 2456890.5 (2014-Aug-21.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1548329699294266 7.2027e-08   q 2.163281120346148 1.9081e-07 au tp 2457609.256887179700 (2016-Aug-08.75688718) 6.4082e-05 TDB node 22.797106048833 0.00010777 deg peri 289.3445113713673 0.00010927 deg i 3.056188974279002 4.6328e-06 deg   Orbit Determination Parameters    # obs. used (total)      505      data-arc span      8793 days (24.07 yr)      first obs. used      1996-09-20      last obs. used      2020-10-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56948      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 11:30:30   Additional Information  Jupiter MOID = 2.31109 au   T_jup = 3.418  Orbit Covariance (6×6)   e q tp node peri i e 5.187903134416656E-15 -1.372440566426538E-14 2.042585274223167E-12 3.259221441885876E-14 6.550273967669785E-13 -9.040059426930472E-15 q -1.372440566426538E-14 3.640847340730518E-14 -5.584383930533019E-12 -8.397601312620337E-14 -1.796670565435079E-12 2.379424126973495E-14 tp 2.042585274223167E-12 -5.584383930533019E-12 4.106525207038166E-9 1.591089921380226E-11 1.185594989228566E-9 -3.371144041911828E-12 node 3.259221441885876E-14 -8.397601312620337E-14 1.591089921380226E-11 1.161511368673842E-8 -1.159382644867285E-8 -1.711473246787753E-10 peri 6.550273967669785E-13 -1.796670565435079E-12 1.185594989228566E-9 -1.159382644867285E-8 1.193905994062324E-8 1.698205436560207E-10 i -9.040059426930472E-15 2.379424126973495E-14 -3.371144041911828E-12 -1.711473246787753E-10 1.698205436560207E-10 2.146249247929391E-11 [ 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 16.12   n/a E2021B10   58481 (1996 ST4)          Discovered 1996-Sep-20 by BAO Schmidt CCD Asteroid Program at Xinglong Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1996 ST4 = 2000 SJ81  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-11 21:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin