+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190137 (2005 QM157) Classification: Main-belt Asteroid          SPK-ID: 2190137 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .147993334639906 4.7539e-08   a 2.217492115317116 7.4508e-09 au q 1.889318062633637 1.0448e-07 au i 7.713724407454597 4.1463e-06 deg node 171.1627127925979 2.9509e-05 deg peri 206.9274530982901 3.1405e-05 deg M 218.5655016059623 1.2122e-05 deg tp 2459674.353842941169 (2022-Apr-04.85384294) 4.1907e-05 TDB period 1206.122872395411 3.30 6.0789e-06 1.664e-08 d yr n .2984770525784199 1.5043e-09 deg/d Q 2.545666168000595 8.5535e-09 au   Orbit Determination Parameters    # obs. used (total)      526      data-arc span      9012 days (24.67 yr)      first obs. used      1995-09-18      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49988      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:06:24   Additional Information  Earth MOID = .892181 au   Jupiter MOID = 2.92081 au   T_jup = 3.626  [ 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 16.89   n/a E2021B55   190137 (2005 QM157)          Discovered 2005-Aug-30 by NEAT at Palomar Reference: 20080819/Numbers.arc Last Updated: 2008-08-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 21:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin