+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   214987 (2008 AO117) Classification: Outer Main-belt Asteroid          SPK-ID: 2214987 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1345617347305688 6.588e-08   a 3.212376268742769 4.7071e-08 au q 2.78011334541343 2.278e-07 au i 2.518179333153711 7.6761e-06 deg node 72.31150931207598 0.00018297 deg peri 212.7725207494945 0.00018645 deg M 306.0880308504994 4.0517e-05 deg tp 2459515.434859393993 (2021-Oct-27.93485939) 0.00024055 TDB period 2102.994032131133 5.76 4.6223e-05 1.266e-07 d yr n .1711845086099379 3.7626e-09 deg/d Q 3.644639192072108 5.3405e-08 au   Orbit Determination Parameters    # obs. used (total)      161      data-arc span      6536 days (17.89 yr)      first obs. used      2003-03-27      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57566      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:48:55   Additional Information  Earth MOID = 1.7622 au   Jupiter MOID = 1.50634 au   T_jup = 3.175  [ hide covariance matrix ] Orbital Elements at Epoch 2457623.5 (2016-Aug-23.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1335006730647624 6.6001e-08   q 2.786056705288901 2.2829e-07 au tp 2457408.089605821842 (2016-Jan-20.58960582) 0.00021914 TDB node 72.32808027370461 0.00018291 deg peri 212.4043230597892 0.00018644 deg i 2.518158940233385 7.6746e-06 deg   Orbit Determination Parameters    # obs. used (total)      161      data-arc span      6536 days (17.89 yr)      first obs. used      2003-03-27      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57566      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:48:55   Additional Information  Jupiter MOID = 1.50634 au   T_jup = 3.175  Orbit Covariance (6×6)   e q tp node peri i e 4.356117943260015E-15 -1.484873758689424E-14 -4.096715537791049E-12 -2.13469514981757E-15 -5.681451374744801E-13 -7.114283514348236E-16 q -1.484873758689424E-14 5.211613979394026E-14 1.687886790160734E-11 -1.395074788228532E-14 2.450686260593506E-12 3.927775989325215E-15 tp -4.096715537791049E-12 1.687886790160734E-11 4.802197100236163E-8 -1.29224341525068E-12 8.003090465889197E-9 7.027323799866544E-12 node -2.13469514981757E-15 -1.395074788228532E-14 -1.29224341525068E-12 3.34543690591208E-8 -3.342354405229313E-8 -3.746883688519784E-10 peri -5.681451374744801E-13 2.450686260593506E-12 8.003090465889197E-9 -3.342354405229313E-8 3.475906123622831E-8 3.755209423570986E-10 i -7.114283514348236E-16 3.927775989325215E-15 7.027323799866544E-12 -3.746883688519784E-10 3.755209423570986E-10 5.889901799144598E-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 16.12   n/a E2021B55   diameter diameter 3.700 km 0.885 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.056   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   214987 (2008 AO117)          Discovered 2008-Jan-11 by Spacewatch at Kitt Peak Reference: 20090509/Numbers.arc Last Updated: 2009-05-11 [ 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 1955-Oct-28 05:03 00:06 Jupiter 1.96768965401768 1.96768586929866 1.96769343874018 2.90879023640869 2.75683326283113 2435408.710094117 6.45744125849165 246.643746044126 44.8824623101237 -58.931756270589 1006390.87103823 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 1966-Dec-29 05:22 00:05 Jupiter 1.75830188207193 1.75829913859324 1.75830462554972 2.19012318175518 1.95785198383666 2439488.723888641 5.17185810653269 170.575038346029 20.3660788225587 -75.5018856720273 888268.536134255 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 1978-Mar-21 12:11 00:04 Jupiter 1.59707538258405 1.59707394983116 1.59707681533666 1.74477111688585 1.40837113068921 2443589.007404224 3.70112399360259 150.268569377434 61.5006050373903 -87.9925742467936 1170442.76063516 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 1989-Jun-29 08:28 00:02 Jupiter 1.50820543624077 1.50820473126374 1.50820614121678 1.57773005661816 1.16876563863319 2447706.852883981 2.36908742637075 164.289409250483 138.0083366509 -22.8915247758338 1156210.9410337 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2000-Oct-10 07:48 00:01 Jupiter 1.51021121643428 1.51021035615579 1.51021207671191 1.69020227423795 1.31721543894032 2451827.825128936 1.3132955155041 160.301909176763 118.875782469432 63.1468973475945 1004302.44478192 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2012-Jan-01 13:04 < 00:01 Jupiter 1.60344849685298 1.60344760367722 1.60344939002829 2.1248558469018 1.85970732080185 2455928.044253994 0.536128741751074 108.6495436196 23.0312420571487 -89.170606450573 1174264.27779301 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2023-Feb-19 16:44 < 00:01 Jupiter 1.78502411978097 1.78502329929756 1.78502494026418 2.96931552258511 2.80496036799907 2459995.197147507 0.770700339046737 79.6607090009983 23.9093230290242 -83.5209248198109 1621637.60063926 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2145-Jun-11 16:46 00:07 Jupiter 1.80699479768377 1.80699130333766 1.80699829202937 2.26858740872314 2.05158373073955 2504667.198594181 7.02543522290881 217.556676369399 18.4303194327964 -76.3082291123331 828552.880160894 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2156-Sep-01 19:29 00:08 Jupiter 1.64788357015541 1.64788051234695 1.64788662796039 1.80949607812751 1.49875397841832 2508767.311644602 7.54935465327019 237.909854152963 57.6636191535716 75.5952672326137 787396.970852954 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2167-Dec-09 19:28 00:08 Jupiter 1.55184565927767 1.55184377922582 1.55184753933402 1.61552286630965 1.23218574824192 2512883.310943394 8.26911479932389 273.82705737077 108.413917159323 74.9593490290803 1110511.41275948 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2179-Mar-22 10:23 00:10 Jupiter 1.53685353605222 1.53685284152473 1.53685423057832 1.69084069547384 1.3253908430296 2517003.932421891 9.62769226554196 160.352407370635 112.527472555244 -33.3015024666873 956674.754380303 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 2190-Jun-16 06:45 00:12 Jupiter 1.60458614238884 1.60458315479437 1.60458912999499 2.06620225879369 1.79260697824267 2521107.781286238 11.7819962911164 357.259485692141 31.89335342157 78.7051105155807 1009478.41496273 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:55 2021-Apr-13 23:48 Alternate Designations  2008 AO117 = 2005 SW262  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 03:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin