+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146760 (2001 XZ170) Classification: Main-belt Asteroid          SPK-ID: 2146760 [ 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 .1756058502706429 4.7002e-08   a 3.193811125318224 2.6798e-08 au q 2.632959207052879 1.4803e-07 au i 2.608222845246587 5.803e-06 deg node 122.2050529819336 0.00011497 deg peri 261.4584991231921 0.00011622 deg M 162.33794640903 1.7141e-05 deg tp 2458260.387520028376 (2018-May-21.88752003) 9.4902e-05 TDB period 2084.789787453903 5.71 2.6239e-05 7.184e-08 d yr n .1726792802643466 2.1733e-09 deg/d Q 3.75466304358357 3.1504e-08 au   Orbit Determination Parameters    # obs. used (total)      395      data-arc span      7171 days (19.63 yr)      first obs. used      2000-08-29      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61681      source      ORB      producer      Otto Matic      solution date      2020-May-20 23:56:47   Additional Information  Earth MOID = 1.63685 au   Jupiter MOID = 1.70509 au   T_jup = 3.170  [ hide covariance matrix ] Orbital Elements at Epoch 2457274.5 (2015-Sep-09.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1744953764989323 4.6907e-08   q 2.636654987114586 1.4746e-07 au tp 2458261.771228322113 (2018-May-23.27122832) 9.5518e-05 TDB node 122.2126201978909 0.00011497 deg peri 261.8320315985757 0.00011624 deg i 2.607909486686577 5.8022e-06 deg   Orbit Determination Parameters    # obs. used (total)      395      data-arc span      7171 days (19.63 yr)      first obs. used      2000-08-29      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61681      source      ORB      producer      Otto Matic      solution date      2020-May-20 23:56:47   Additional Information  Jupiter MOID = 1.70509 au   T_jup = 3.170  Orbit Covariance (6×6)   e q tp node peri i e 2.200288503077559E-15 -6.842257150480423E-15 -1.172588942117488E-13 -8.56252325315918E-15 -8.166742201358551E-14 -1.04258932433246E-15 q -6.842257150480423E-15 2.174478166508231E-14 1.004973917629583E-12 2.737799118746812E-14 3.166531183117569E-13 3.334271436015722E-15 tp -1.172588942117488E-13 1.004973917629583E-12 9.123713258838478E-9 -7.025368426105019E-12 1.650373704513708E-9 -1.173234017681665E-12 node -8.56252325315918E-15 2.737799118746812E-14 -7.025368426105019E-12 1.321818547087722E-8 -1.32051100115077E-8 4.111745111855543E-11 peri -8.166742201358551E-14 3.166531183117569E-13 1.650373704513708E-9 -1.32051100115077E-8 1.351243090863848E-8 -4.128139260762781E-11 i -1.04258932433246E-15 3.334271436015722E-15 -1.173234017681665E-12 4.111745111855543E-11 -4.128139260762781E-11 3.366565591015379E-11 [ 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   146760 (2001 XZ170)          Discovered 2001-Dec-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 1923-Dec-11 23:22 00:06 Jupiter 1.92088673493828 1.92088514490534 1.92088832497056 2.68072781851465 2.5108551964646 2423765.473410327 5.67701165132511 93.3364031120023 22.3753851395034 -74.8549599498305 989253.258979622 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1935-Feb-23 20:59 00:05 Jupiter 1.8364920175406 1.83649095879666 1.8364930762862 2.23711012517126 2.02045203615456 2427857.374345107 4.62597001846472 141.514882831659 4.46589792332527 -88.2769565688967 1778585.98881924 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1946-May-23 20:50 00:04 Jupiter 1.78743271314814 1.78743213077398 1.78743329552412 2.01737839518337 1.7669358825038 2431964.368030049 3.64533650067785 165.869960941819 9.9922025212867 -89.3610214038303 2358312.47695885 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1957-Aug-29 09:19 00:03 Jupiter 1.78110135004622 1.78110089625233 1.78110180383982 1.99930696081284 1.74530975049154 2436079.888253042 2.81286737572245 157.083363697545 10.4305963342374 -86.3105869352063 2407458.84739757 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1968-Nov-30 18:53 00:02 Jupiter 1.81511822697385 1.81511766087328 1.81511879307473 2.1654287268375 1.93798457701987 2440191.286816526 2.12890133759234 122.766820683975 6.52730616945154 -86.8819255184992 2259606.52051914 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1980-Feb-20 03:40 00:02 Jupiter 1.88851220753492 1.88851156653023 1.8885128485396 2.53581018364486 2.3522982449582 2444289.652463177 1.54858543808464 83.5822073116703 11.6973911266077 87.7893902032958 2142731.32962269 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 1991-Apr-22 15:18 00:01 Jupiter 1.99135804751574 1.99135742058819 1.99135867444317 3.13419808305295 2.99541303672581 2448369.137807163 1.03074367559379 56.3487953431949 19.8340716427326 83.1975713854405 2241387.40837297 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2091-Jan-17 02:25 00:03 Jupiter 1.97809957694175 1.97809881215882 1.97810034172456 3.22876659337175 3.09330461391121 2484798.600817205 2.56292969640946 60.156004105418 23.1822527142994 82.8597132717259 1647614.8085396 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2102-Mar-14 23:08 00:03 Jupiter 1.87696500566211 1.87696428827094 1.87696572305297 2.56925552430167 2.38715921867716 2488872.463946987 2.98778474861607 65.3390727871864 11.0883675124021 -87.9200586699437 1457684.76683378 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2113-May-29 02:44 00:03 Jupiter 1.80456129506581 1.8045607350097 1.80456185512214 2.15785430195523 1.92810215504452 2492965.614142597 3.46907121833082 102.815683333745 12.3135674295474 86.3009799092815 1963347.70314362 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2124-Aug-26 23:45 00:04 Jupiter 1.7739989207678 1.77399848624052 1.77399935529487 1.98109747595428 1.72331572055135 2497073.489367585 4.07382869043398 170.361155601188 15.0487654285414 86.9407475285493 2448338.52370761 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2135-Dec-03 15:59 00:05 Jupiter 1.78651307054393 1.78651235301035 1.78651378808339 2.00627282443388 1.7541064947924 2501189.165854324 4.8629807340174 246.871287583407 10.7081143531647 -89.6298825961675 2400119.82247349 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2147-Mar-05 20:21 00:06 Jupiter 1.83816564230653 1.83816435418854 1.83816693043769 2.21835018253705 1.99987052465207 2505299.348256455 5.841020876589 300.612930050939 6.44250974556147 89.0452622665981 2258342.52516491 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 2158-May-23 11:31 00:07 Jupiter 1.92579197811447 1.92579010181287 1.92579385443085 2.63533699000404 2.46279101137355 2509395.979527413 6.92420732891555 310.757736162404 14.3987215471402 83.1957044018268 2139303.76082727 T 15 CATAB v2.0f-lin.ifort 2020-May-20 23:57:08 2020-May-20 23:57 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 03:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin