+ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1546325200253374 5.6121e-08   a 2.531484054933708 1.0492e-08 au q 2.140034296115349 1.4347e-07 au i 11.56715882012543 5.6388e-06 deg node 233.8002761491759 2.1121e-05 deg peri 183.4488698037764 2.6706e-05 deg M 255.313714305234 1.8099e-05 deg tp 2459628.307615839387 (2022-Feb-17.80761584) 7.5548e-05 TDB period 1471.164447950982 4.03 9.1464e-06 2.504e-08 d yr n .2447041189048601 1.5214e-09 deg/d Q 2.922933813752066 1.2115e-08 au   Orbit Determination Parameters    # obs. used (total)      866      data-arc span      14194 days (38.86 yr)      first obs. used      1981-10-30      last obs. used      2020-09-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55864      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:07:54   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 [ 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 2104-Apr-30 14:04 00:08 Iris 0.0327854373428769 0.0327824041803444 0.0327884723857748 2.14634409710505 2.14634401541057 2489650.085902792 7.71483563678576 503.362928283208 87.7597638914095 -75.6387428602837 54092.4018271486 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 17:07:56 2021-Apr-13 17:07 Alternate Designations  1997 TL17 = 1981 UG6 = 1993 TC10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 19:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin