+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146867 (2002 AC176) Classification: Main-belt Asteroid          SPK-ID: 2146867 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06808928000828086 4.8062e-08   a 3.044845511517252 2.3178e-08 au q 2.837524172901596 1.3852e-07 au i 2.536623181328603 4.978e-06 deg node 316.4988115582436 9.8365e-05 deg peri 233.9738848632954 0.00010387 deg M 144.1273523349144 3.3109e-05 deg tp 2458423.555085574653 (2018-Nov-01.05508557) 0.00017854 TDB period 1940.645995793878 5.31 2.2159e-05 6.067e-08 d yr n .1855052393791849 2.1182e-09 deg/d Q 3.252166850132907 2.4757e-08 au   Orbit Determination Parameters    # obs. used (total)      461      data-arc span      9584 days (26.24 yr)      first obs. used      1994-09-12      last obs. used      2020-12-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56059      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 10:30:51   Additional Information  Earth MOID = 1.8379 au   Jupiter MOID = 1.71779 au   T_jup = 3.234  [ 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 15.45   n/a E2021B55   diameter diameter 6.250 km 1.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.029   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   146867 (2002 AC176)          Discovered 2002-Jan-14 by LINEAR at Socorro Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ 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 1904-Oct-07 12:15 00:04 Jupiter 1.75229854359235 1.75229754987622 1.75229953731037 2.42725874413488 2.21919559020502 2416761.010176756 3.96389481318289 134.872729985261 13.3999403488715 83.2504869587859 2271033.12328412 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 1914-Mar-01 23:14 00:03 Jupiter 1.97991799370853 1.97991655519194 1.97991943222479 3.39261876733506 3.26408461355553 2420193.467814368 3.47106309720124 62.2666975916245 42.7453116461047 -24.5377616523771 1406249.49694592 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 1953-Jan-01 08:46 00:02 Jupiter 1.85104668678496 1.851045698751 1.85104767481893 2.82236558705145 2.65529005545684 2434378.865045953 2.20151804298545 71.9879916912367 22.8325023090638 74.0398134835157 1948944.44480554 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 1962-May-17 00:38 00:02 Jupiter 1.82853609122188 1.82853549670775 1.82853668573632 2.84921327232694 2.681709807345 2437801.526474865 1.9136217808644 84.7806326124462 15.9736603648554 -82.8103859146322 2761869.84197502 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2001-Mar-19 05:00 < 00:01 Jupiter 1.99594038540853 1.99593988781588 1.99594088300106 3.45521310680036 3.3301279717427 2451987.708484623 0.500621719668269 43.6863151827727 19.4477894539263 -89.0347835798695 3131381.51268817 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2010-Aug-07 19:42 < 00:01 Jupiter 1.73729377309256 1.73729327830083 1.73729426788419 2.45234661361448 2.24474903498274 2455416.320501098 0.292543391484196 53.2958955321424 10.0492217908808 -86.4335177551478 2357670.60654096 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2058-Nov-01 01:11 00:02 Jupiter 1.73361630833234 1.73361588560992 1.73361673105496 2.35350939603355 2.13584464170667 2473033.549552537 1.57369961381728 80.5255631062216 6.71121177865276 -87.9525528657948 2773599.80681005 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2107-Jan-27 11:53 00:03 Jupiter 1.81140153399576 1.81140071955754 1.8114023484348 2.6479028078659 2.46499025547684 2490651.994900063 3.29819736219241 100.134259279411 15.7576658992656 81.652601284599 2476564.03017744 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2116-Jun-11 21:05 00:03 Jupiter 1.87966353329409 1.87966198342859 1.87966508316035 3.04327648304042 2.89141534052344 2494075.378698776 3.47475340661734 110.552166844231 28.1597968652703 -63.7102694545473 1894691.32100598 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2155-Apr-19 05:20 00:05 Jupiter 1.94988140730555 1.94987954464789 1.94988326996422 3.2449122101389 3.10816044830678 2508265.721899591 4.82638476570284 126.352877307621 28.8650030672213 58.7350923216192 1880575.37914291 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 2164-Sep-01 09:54 00:05 Jupiter 1.76630722690418 1.76630585701704 1.76630859680618 2.55983455749278 2.36509289771908 2511688.912239792 5.27099534795004 290.304179805787 9.96092312260743 -85.0661808369548 2669537.46249871 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 10:30:52 2021-Feb-24 10:30 Alternate Designations  2002 AC176 = 1994 RW9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 08:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin