+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249041 (2007 TW70) Classification: Main-belt Asteroid          SPK-ID: 2249041 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .073707841058876 5.5114e-08   a 2.273071932149256 1.5856e-08 au q 2.105528707459007 1.2595e-07 au i 2.250618484007205 4.5289e-06 deg node 120.2434830295397 0.00015632 deg peri 260.431246078966 0.00015962 deg M 247.7400907474721 3.3037e-05 deg tp 2459390.837594970085 (2021-Jun-25.33759497) 0.0001164 TDB period 1251.751717286073 3.43 1.3097e-05 3.586e-08 d yr n .2875969691341964 3.0091e-09 deg/d Q 2.440615156839506 1.7024e-08 au   Orbit Determination Parameters    # obs. used (total)      340      data-arc span      6759 days (18.51 yr)      first obs. used      2000-08-25      last obs. used      2019-02-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56855      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 09:40:24   Additional Information  Earth MOID = 1.10901 au   Jupiter MOID = 2.8454 au   T_jup = 3.606  [ 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 17.1   n/a MPO418329   249041 (2007 TW70)          Discovered 2007-Oct-13 by Tucker, R. A. at Goodricke-Pigott Reference: 20100824/Numbers.arc Last Updated: 2010-08-27 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-08 04:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin