+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7601 (1994 US1) Classification: Main-belt Asteroid          SPK-ID: 2007601 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .138330287908076 9.0314e-08   a 2.593076662345432 2.8051e-08 AU q 2.234375621075476 2.4029e-07 AU i 15.34088814729212 8.716e-06 deg node 41.32451561050527 3.4835e-05 deg peri 279.1898365955436 4.5251e-05 deg M 214.5501684825774 3.5516e-05 deg tp 2457016.714883176720 (2014-Dec-25.21488318) 0.00015603 JED period 1525.181264421379 4.18 2.4748e-05 6.776e-08 d yr n .236037517898947 3.83e-09 deg/d Q 2.951777703615389 3.1931e-08 AU   Orbit Determination Parameters    # obs. used (total)      828      data-arc span      8213 days (22.49 yr)      first obs. used      1990-10-14      last obs. used      2013-04-09      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .54821      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:27:07   Additional Information  Earth MOID = 1.28392 AU   T_jup = 3.355  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.6 mag n/a PDS3 (MPC 29601)   7601 (1994 US1)          Discovered 1994-Oct-25 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1994 US1 = 1969 UT = 1990 TY12 = 1990 WY11 = 1990 XE2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 04:51 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin