+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .213459214947564 3.1481e-08   a 2.340909428606236 1.1798e-08 au q 1.841220739712598 7.2111e-08 au i 1.25594683442615 4.1855e-06 deg node 243.3670668009858 0.00019092 deg peri 48.74183159663344 0.00019132 deg M 213.4508263679529 1.4287e-05 deg tp 2459733.044883223171 (2022-Jun-02.54488322) 5.4453e-05 TDB period 1308.203609811536 3.58 9.8901e-06 2.708e-08 d yr n .2751865208901715 2.0804e-09 deg/d Q 2.840598117499874 1.4317e-08 au   Orbit Determination Parameters    # obs. used (total)      552      data-arc span      8534 days (23.36 yr)      first obs. used      1997-09-04      last obs. used      2021-01-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58024      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 07:40:47   Additional Information  Earth MOID = .823373 au   Jupiter MOID = 2.34951 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 16.65   n/a E2021B10   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 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:40:49 2021-Feb-24 07:40 Alternate Designations  1997 SC1 = 2000 GL42  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-09 05:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin