+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70525 (1999 TW112) Classification: Main-belt Asteroid          SPK-ID: 2070525 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1582231562152343 5.5224e-08   a 2.561368193166422 1.5254e-08 au q 2.156100433414319 1.3968e-07 au i 14.13448689948136 5.4927e-06 deg node 213.9992123690461 2.352e-05 deg peri 99.98685452496044 2.8994e-05 deg M 54.29910782606736 2.1067e-05 deg tp 2458774.662198031312 (2019-Oct-18.16219803) 8.6406e-05 TDB period 1497.291796564238 4.10 1.3375e-05 3.662e-08 d yr n .2404340962971108 2.1478e-09 deg/d Q 2.966635952918525 1.7667e-08 au   Orbit Determination Parameters    # obs. used (total)      395      data-arc span      11128 days (30.47 yr)      first obs. used      1990-05-30      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58998      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:43   Additional Information  Earth MOID = 1.1969 au   Jupiter MOID = 2.41974 au   T_jup = 3.375  [ 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 15.6   n/a MPO436275   70525 (1999 TW112)          Discovered 1999-Oct-04 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ 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 1901-Jun-08 11:29 00:02 Amphi 0.0364984488010011 0.0364769019447415 0.0365199977182661 7.66249610317632 7.6624960826208 2415543.978137903 1.75636571229998 1158.28557064434 46.7748646439894 21.9633013181383 43869.0063954865 T 12 CATAB v2.0f-lin.ifort 2020-Dec-17 21:54:44 2020-Dec-17 21:54 2024-Mar-14 10:13 < 00:01 Eunom 0.0313240260670556 0.031320690454451 0.0313273618419412 7.17596036671777 7.17596030426722 2460383.925394513 0.390804980916648 203.157760644152 44.8720344510319 -36.0912242581205 64255.6103976624 T 12 CATAB v2.0f-lin.ifort 2020-Dec-17 21:54:44 2020-Dec-17 21:54 2098-Nov-26 16:51 < 00:01 David 0.0186722734730707 0.0186647791037293 0.0186797822718896 8.80497913133886 8.80497903945113 2487669.201759874 0.439564575532242 904.95507615798 43.8345719500284 -65.7371074116101 58095.3482502948 T 12 CATAB v2.0f-lin.ifort 2020-Dec-17 21:54:44 2020-Dec-17 21:54 2135-Jul-10 11:43 < 00:01 Psych 0.0460319699400122 0.0460302624728594 0.0460336890108791 4.89158214218361 4.89158208845022 2501042.988411630 0.806080111376881 1343.08559832951 43.670940807736 -86.8687058329188 157353.671902888 T 12 CATAB v2.0f-lin.ifort 2020-Dec-17 21:54:44 2020-Dec-17 21:54 Alternate Designations  1999 TW112 = 1998 HM72  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 20:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin