+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1637 Swings (A907 GX) Classification: Main-belt Asteroid          SPK-ID: 2001637 [ 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 44 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04488724334245639 3.2534e-08   a 3.069996578345425 1.2933e-08 au q 2.932192894872725 1.0391e-07 au i 14.06886638073111 4.2095e-06 deg node 21.26728919534373 1.329e-05 deg peri 237.1368431206018 4.7418e-05 deg M 305.612351111531 4.6369e-05 deg tp 2459297.326757865372 (2021-Mar-23.82675787) 0.00025324 TDB period 1964.740800814228 5.38 1.2415e-05 3.399e-08 d yr n .1832302764063375 1.1579e-09 deg/d Q 3.207800261818124 1.3514e-08 au   Orbit Determination Parameters    # obs. used (total)      3001      data-arc span      41430 days (113.43 yr)      first obs. used      1907-04-04      last obs. used      2020-09-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42688      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:16:59   Additional Information  Earth MOID = 1.94437 au   Jupiter MOID = 1.81779 au   T_jup = 3.184  [ 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 10.4   n/a MPO259346   diameter diameter 52.994 km 0.428 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 10.264 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Brincat, S.M.; Galdies, C. (2018) Minor Planet Bull. 45, 115-116.] [Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.] geometric albedo albedo 0.042   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1637 Swings (A907 GX)          Discovered 1936-Aug-28 by Hunaerts, J. at Uccle Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ 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-Sep-17 16:04 00:02 Jupiter 1.80225036415422 1.8022499941459 1.80225073416501 4.62534423043016 4.5225930905502 2416741.169790084 2.00540529754116 196.220952757307 13.2650741544118 -86.8600309433359 3654868.060788 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 1963-Oct-03 12:25 < 00:01 Jupiter 1.81943988127307 1.81943947398621 1.81944028856292 4.69164136225494 4.59134165049304 2438306.017357309 0.912466954132022 213.349406404812 15.0605791878965 -86.8062403707042 3938354.35492066 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2022-Oct-17 03:33 < 00:01 Jupiter 1.85732344494266 1.85732309460509 1.85732379528045 4.73741764961654 4.64015480174365 2459869.648191191 0.244602093369819 142.964711565102 15.847897149573 -88.1553505924738 4321849.93590258 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2072-Jan-10 05:35 00:01 Jupiter 1.9743488677338 1.97434816263211 1.9743495728365 3.7754197813432 3.66002285852773 2477851.732450249 1.2082173753675 88.7636845677508 12.9388034824739 -67.1065436266169 3648289.64431915 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2081-Oct-29 09:35 00:01 Jupiter 1.9131250202958 1.91312436994658 1.91312567064697 4.76320865366978 4.66933302328113 2481431.899558533 1.30803176732234 156.06568060975 24.0877947818451 -82.0832508048336 4297805.244442 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2131-Jan-15 18:54 00:02 Jupiter 1.91287345962771 1.91287242695657 1.91287449230331 4.00719672308555 3.89512815344898 2499406.287707815 2.33092678632377 165.761883688365 15.3505123263626 -71.1246705381485 3691483.9891731 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2140-Nov-11 04:54 00:02 Jupiter 1.98196074432504 1.98195946846578 1.98196202018588 4.77192941128528 4.68151454414366 2502993.704101841 2.41380741152124 130.674173262653 40.041114028511 -66.4195603780297 4330430.27037521 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 2190-Jan-24 10:28 00:03 Jupiter 1.86446936086141 1.86446821989449 1.86447050183661 4.21987505861293 4.11080914846338 2520964.935879641 3.37278203156025 219.533908338974 18.469290271563 -74.3358976687913 3811201.14497765 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:17:07 2020-Nov-13 04:17 Alternate Designations  A907 GX = 1934 FL = 1934 FP = 1936 QO = 1936 SD = 1939 FU = 1950 GA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 22:05 UT (server date/time)   Site Manager:   Ryan S. 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