+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120737 (1997 TL17) Classification: Main-belt Asteroid          SPK-ID: 2120737 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1546325074766935 5.8937e-08   a 2.531484056183645 1.0536e-08 au q 2.140034328938697 1.5078e-07 au i 11.5671597173906 5.8051e-06 deg node 233.80027584199 2.1143e-05 deg peri 183.4488708138221 2.6735e-05 deg M 255.3137124647125 1.8205e-05 deg tp 2459628.307623677652 (2022-Feb-17.80762368) 7.6002e-05 TDB period 1471.164449040578 4.03 9.1844e-06 2.515e-08 d yr n .2447041187236237 1.5277e-09 deg/d Q 2.922933783428593 1.2165e-08 au   Orbit Determination Parameters    # obs. used (total)      858      data-arc span      14194 days (38.86 yr)      first obs. used      1981-10-30      last obs. used      2020-09-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55777      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 17:55:09   Additional Information  Earth MOID = 1.15133 au   Jupiter MOID = 2.43048 au   T_jup = 3.406  [ 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 15.43   n/a E2021B55   diameter diameter 1.949 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.387   0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120737 (1997 TL17)          Discovered 1997-Oct-08 by Kobayashi, T. at Oizumi Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1997 TL17 = 1981 UG6 = 1993 TC10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-11 16:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin