+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   152746 (1998 YH15) Classification: Main-belt Asteroid          SPK-ID: 2152746 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .202754642774433 4.1741e-08   a 2.396520386647233 8.5666e-09 au q 1.910614751750927 1.0043e-07 au i .8238470984501906 4.3817e-06 deg node 346.4723604286162 0.00032147 deg peri 28.62119505096147 0.0003217 deg M 44.11638944271803 1.1143e-05 deg tp 2459034.439026471284 (2020-Jul-03.93902647) 4.1604e-05 TDB period 1355.096172318458 3.71 7.2659e-06 1.989e-08 d yr n .2656638011042933 1.4245e-09 deg/d Q 2.882426021543538 1.0303e-08 au   Orbit Determination Parameters    # obs. used (total)      339      data-arc span      8077 days (22.11 yr)      first obs. used      1998-12-22      last obs. used      2021-02-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .6096      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:28:28   Additional Information  Earth MOID = .910278 au   Jupiter MOID = 2.58407 au   T_jup = 3.500  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.49   n/a E2021B55   152746 (1998 YH15)          Discovered 1998-Dec-22 by Spacewatch at Kitt Peak Reference: 20070402/Numbers.arc Last Updated: 2007-04-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 12:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin