+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   8755 Querquedula (4586 P-L) Classification: Outer Main-belt Asteroid          SPK-ID: 2008755 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1410325569074064 3.585e-08   a 3.219137843458081 1.6674e-08 au q 2.765134602357793 1.173e-07 au i 1.38550262469664 3.6292e-06 deg node 65.44790536519352 0.00018565 deg peri 335.1239456995213 0.00018622 deg M 64.45885407780088 1.5235e-05 deg tp 2458622.764443657892 (2019-May-19.26444366) 8.8316e-05 TDB period 2109.637259747547 5.78 1.6391e-05 4.488e-08 d yr n .1706454502244997 1.3258e-09 deg/d Q 3.673141084558368 1.9025e-08 au   Orbit Determination Parameters    # obs. used (total)      2090      data-arc span      21956 days (60.11 yr)      first obs. used      1960-09-24      last obs. used      2020-11-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50473      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:36:03   Additional Information  Earth MOID = 1.77339 au   Jupiter MOID = 1.73459 au   T_jup = 3.173  [ 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 13.1   n/a MPO458916   diameter diameter 11.560 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.080   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   8755 Querquedula           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Named for anas querquedula, or garganey. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19990202/MPCPages.arc Last Updated: 2010-06-11 [ 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 1900-Oct-05 05:16 00:04 Jupiter 1.95929337627101 1.9592926407308 1.959294111811 3.10873912218573 2.96641846765773 2415297.719132809 4.47425296548422 45.4320898785821 19.59283931895 -84.6035015721604 1498501.06368716 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1912-Feb-17 00:24 00:04 Jupiter 1.91120621938044 1.91120568557273 1.91120675318815 2.78830432044554 2.62455066302983 2419449.516612534 3.7684456000474 59.7377947780327 10.6070436549061 -85.9695755930503 2498238.64449615 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1923-Jul-17 10:32 00:03 Jupiter 1.88248395645232 1.88248357526218 1.88248433764257 2.58965587626852 2.40965117165933 2423617.938783436 3.10272754591787 72.6190083959709 6.91340487508905 -89.2040239243502 3556379.13101677 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1934-Dec-27 21:17 00:03 Jupiter 1.86628730262635 1.86628697952024 1.86628762573236 2.48002094189826 2.28971510758136 2427799.386768032 2.51273809495773 81.0485769988545 5.44959857652741 89.3524850473767 3827445.5768385 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1946-Jun-15 23:01 00:02 Jupiter 1.86418125637873 1.86418090717359 1.86418160558396 2.44571093769058 2.25228060300715 2431987.458881441 2.00331445461805 83.6040758562484 5.3728219643305 88.6776813798588 3641812.76301874 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1957-Dec-05 06:19 00:02 Jupiter 1.87701662199068 1.87701622951586 1.87701701446562 2.48241949056866 2.2934442510153 2436177.763152686 1.56574239091411 78.5774416163801 6.54110496508507 88.166993473103 3457307.08960967 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1969-May-21 10:18 00:01 Jupiter 1.90270943683944 1.90270901683208 1.90270985684681 2.58780809003283 2.40965094873988 2440362.929282043 1.18615743405012 67.2325833632481 8.58880845792941 87.3953645875143 3358852.45478949 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1980-Oct-25 21:06 < 00:01 Jupiter 1.94345735652612 1.9434569312361 1.94345778181614 2.77581656272244 2.61409485938571 2444538.379156889 0.848971072874046 53.1175549932475 11.1308590770209 86.6200955868792 3354898.03258958 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 1992-Mar-17 17:36 < 00:01 Jupiter 1.99762943582128 1.99762902420831 1.99762984743414 3.0648726964054 2.92325451805966 2448699.233040327 0.544891246001273 41.4461752807711 13.4535300037497 86.9730675263223 3505831.53884188 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2115-Sep-28 19:02 00:02 Jupiter 1.98907481527804 1.98907434161861 1.98907528893759 3.68585241675964 3.56844968714614 2493818.293131641 1.84168818354919 52.8743891667138 15.6149491608728 80.5647679767497 3284408.23797104 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2127-Jan-11 02:24 00:02 Jupiter 1.91594745827461 1.91594702216664 1.91594789438259 3.15427346506409 3.0108569762148 2497940.600201079 1.99036990134866 45.5942869728249 12.439686419235 84.8179749639774 2722928.44616711 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2138-May-16 06:37 00:02 Jupiter 1.86420358383287 1.86420320543751 1.86420396222813 2.77978742035712 2.61122479119894 2502083.775591876 2.14738755233507 44.7602242338382 8.47479730350362 88.0542511533716 2637337.95278761 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2149-Oct-07 06:40 00:02 Jupiter 1.83295545743351 1.83295513214367 1.83295578272325 2.54234180207607 2.35356894568714 2506245.777657243 2.34190399127624 48.5951292807329 7.10853930085602 86.724008265619 2981779.65362081 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2161-Mar-15 06:08 00:03 Jupiter 1.82325772904435 1.82325741941525 1.82325803867344 2.42020572700198 2.21996957087748 2510422.755548513 2.60091007490937 58.6306851166185 7.10183047507494 83.8612027519429 3546855.29315678 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2172-Aug-30 03:33 00:03 Jupiter 1.83066290541126 1.83066253191737 1.83066327890537 2.38890142362426 2.18665899360255 2514608.648066533 2.94963865246976 79.4673280817534 6.51174680653066 82.7182414453876 3728341.33977483 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2184-Feb-16 20:18 00:03 Jupiter 1.85655957795937 1.85655903719752 1.85656011872248 2.43948966948671 2.24469266775997 2518796.346029694 3.39815949289008 114.098793495316 6.86195524859921 82.6802056325607 3543911.79432104 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 2195-Aug-03 22:22 00:04 Jupiter 1.89597112892135 1.89597036357234 1.8959718942737 2.55906192959422 2.37808761138581 2522982.431926919 3.94762356241788 158.604294913007 8.60251510570974 82.5417150695819 3424910.48670652 T 33 CATAB v2.0f-lin.ifort 2020-Dec-18 02:36:08 2020-Dec-18 02:36 Alternate Designations  4586 P-L = 1992 ET28  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 00:49 UT (server date/time)   Site Manager:   Ryan S. 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