+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   46161 (2001 FK78) Classification: Main-belt Asteroid          SPK-ID: 2046161 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2176764719907402 4.6115e-08   a 2.672424789914836 1.2103e-08 au q 2.090700789985579 1.2589e-07 au i 8.760942959670155 5.0914e-06 deg node 174.4072962691539 2.3911e-05 deg peri 328.1106495509319 2.5062e-05 deg M 183.3305412942132 8.4948e-06 deg tp 2459783.597147588604 (2022-Jul-23.09714759) 4.0158e-05 TDB period 1595.719912185723 4.37 1.084e-05 2.968e-08 d yr n .2256035017491843 1.5325e-09 deg/d Q 3.254148789844092 1.4737e-08 au   Orbit Determination Parameters    # obs. used (total)      938      data-arc span      10980 days (30.06 yr)      first obs. used      1990-10-23      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55462      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:22:04   Additional Information  Earth MOID = 1.10838 au   Jupiter MOID = 1.79048 au   T_jup = 3.330  [ 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 15.1   n/a MPO302326   46161 (2001 FK78)          Discovered 2001-Mar-19 by LINEAR at Socorro Reference: 20020822/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 1950-Sep-09 07:06 00:01 Jupiter 1.78771300999139 1.78771260977406 1.78771341020861 2.19073325685305 1.96257678197042 2433533.796143910 1.24357620094244 137.492263212418 42.2366596126123 -85.0585055386329 1665225.70840581 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 1999-Mar-22 06:03 < 00:01 Jupiter 1.96501433671027 1.96501393118076 1.96501474223989 2.99699508618101 2.84953968312067 2451259.752009904 0.350103009388698 48.3833322691225 15.8052426001941 81.0768338103345 2826623.76369321 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 2033-Aug-26 10:45 < 00:01 Jupiter 1.79252783186364 1.7925274529384 1.79252821078908 2.17464224467338 1.94525310161866 2463835.947782916 0.383845673537234 84.6227539965357 39.1904188373195 82.5475298598648 1655903.55778768 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 2082-Mar-07 10:14 00:01 Jupiter 1.93009623442031 1.93009539541141 1.93009707343142 2.88809396645577 2.73192001778816 2481560.926123646 1.3013135990858 125.107342267694 17.0605232250545 77.2258574853484 2669878.12838658 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 2116-Aug-12 04:15 00:02 Jupiter 1.80335870548823 1.80335814989689 1.80335926108182 2.16136697342884 1.93187057150454 2494136.676838990 1.94478808000492 195.398137930759 48.234406381333 -78.845365932506 1634113.24673473 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 2165-Feb-21 09:28 00:03 Jupiter 1.89935746522582 1.89935586616183 1.89935906430373 2.79735072492879 2.6331097222193 2511861.894787831 2.89322424528892 283.599076404175 17.8625007821327 78.3141858140481 2535983.91002641 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 2199-Jul-31 04:03 00:04 Jupiter 1.80640309890482 1.80640198872727 1.80640420909593 2.14921772792489 1.91868098658528 2524439.668588012 3.54939443335006 308.378596717994 53.0306988456956 -73.6673146290842 1632534.65087844 T 22 CATAB v2.0f-lin.ifort 2020-Dec-17 21:22:05 2020-Dec-17 21:22 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin