+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   136665 (1995 QB9) Classification: Main-belt Asteroid          SPK-ID: 2136665 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0384306595985026 4.2394e-08   a 3.09346165983466 2.9719e-08 au q 2.974577887804536 1.3975e-07 au i 11.4673317704002 5.2149e-06 deg node 175.4759112418842 2.4724e-05 deg peri 69.66657415706779 7.5771e-05 deg M 270.1281746937009 7.3091e-05 deg tp 2459496.619840160426 (2021-Oct-09.11984016) 0.00040521 TDB period 1987.309613986833 5.44 2.8638e-05 7.841e-08 d yr n .1811494280842266 2.6105e-09 deg/d Q 3.212345431864785 3.0861e-08 au   Orbit Determination Parameters    # obs. used (total)      347      data-arc span      9065 days (24.82 yr)      first obs. used      1995-06-28      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56637      source      ORB      producer      Otto Matic      solution date      2020-May-20 22:40:17   Additional Information  Earth MOID = 1.9876 au   Jupiter MOID = 1.79613 au   T_jup = 3.192  [ 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 15.4   n/a MPO422494   diameter diameter 3.080 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.155   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   136665 (1995 QB9)          Discovered 1995-Aug-28 by Spacewatch at Kitt Peak Reference: 20061205/Numbers.arc Last Updated: 2006-12-13 [ 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 1903-Sep-01 12:39 00:05 Jupiter 1.88406175752722 1.88405998605395 1.8840635290261 4.29575480873887 4.18979285950424 2416359.027377752 4.73749782327144 374.294039583399 21.9563306649306 -77.1261919876404 3133137.58439366 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 1963-Dec-14 15:10 00:02 Jupiter 1.79812144978871 1.79812101680678 1.79812188277075 4.00092612803786 3.88140316391191 2438378.131686807 2.21295052608606 192.595238439057 19.1620717443336 88.2921142230446 2928984.80441405 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 2024-Apr-13 10:34 < 00:01 Jupiter 1.90549639564987 1.90549585852983 1.90549693277001 3.33424332349083 3.1981475444059 2460413.940042094 0.468926251334806 57.3115164120317 20.7806420644179 75.5085970190486 3078936.15157766 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 2034-Apr-02 09:45 < 00:01 Jupiter 1.87470463643322 1.87470410255603 1.87470517031073 4.33637036179468 4.23089528165238 2464054.906038006 0.848359472569917 81.701031798101 21.413443989141 -80.5258522002232 3208584.64285882 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 2094-Jul-16 22:25 00:03 Jupiter 1.81041000635227 1.81040948878368 1.8104105239258 3.93254217091802 3.81171397241098 2486075.433810913 3.44402401101249 281.875524113917 19.4516749523894 86.0898303385341 2915583.59756933 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 2154-Nov-22 08:49 00:07 Jupiter 1.92707611284707 1.92707411922209 1.92707810648257 3.18750561720864 3.04649253233431 2508117.867530638 6.52597162017553 256.357266635751 22.5630885387965 62.5642286053243 2661167.18664238 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 2164-Nov-04 00:38 00:06 Jupiter 1.86903447314417 1.86903262377021 1.86903632257209 4.35961134029555 4.25439027606489 2511752.526482263 6.33889635813873 531.580027508633 21.1924141667173 -80.7751719907861 3213517.78764415 T 20 CATAB v2.0f-lin.ifort 2020-May-20 22:40:28 2020-May-20 22:40 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-14 08:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin