+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   85487 (1997 SC1) Classification: Main-belt Asteroid          SPK-ID: 2085487 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2134950205305096 3.2191e-08   a 2.340850823739791 1.2002e-08 au q 1.841090829066604 7.3444e-08 au i 1.256120346624601 4.3911e-06 deg node 243.3764506648391 0.00019378 deg peri 48.70118460330531 0.00019419 deg M 158.4601080695258 1.4083e-05 deg tp 2458424.693608753805 (2018-Nov-02.19360875) 4.883e-05 TDB period 1308.15448363622 3.58 1.0061e-05 2.755e-08 d yr n .2751968551904694 2.1165e-09 deg/d Q 2.840610818412977 1.4565e-08 au   Orbit Determination Parameters    # obs. used (total)      540      data-arc span      8181 days (22.40 yr)      first obs. used      1997-09-04      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5809      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 20:33:10   Additional Information  Earth MOID = .825199 au   Jupiter MOID = 2.35004 au   T_jup = 3.533  [ 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 16.6   n/a MPO432398   85487 (1997 SC1)          Discovered 1997-Sep-19 by BAO Schmidt CCD Asteroid Program at Xinglong Reference: 20040830/Numbers.arc Last Updated: 2004-09-06 [ 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 1988-Jul-07 10:05 00:02 Europ 0.0410738733144929 0.0410717619156321 0.0410759848392673 3.911369165903 3.91136909974578 2447349.920092146 2.15363633575498 158.685557628482 31.559001718764 -49.8045616256511 150698.597824613 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 20:33:25 2020-Feb-23 20:33 Alternate Designations  1997 SC1 = 2000 GL42  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-07 06:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin