+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120385 (2005 QB36) Classification: Main-belt Asteroid          SPK-ID: 2120385 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07274560575816789 4.2923e-08   a 3.064518543312219 2.359e-08 au q 2.841588285521833 1.421e-07 au i 9.852565951592844 5.9049e-06 deg node 177.4350775042335 2.7838e-05 deg peri 126.5610236876502 5.2943e-05 deg M 352.1861542620503 4.3581e-05 deg tp 2459243.030857558475 (2021-Jan-28.53085756) 0.00023723 TDB period 1959.484386374452 5.36 2.2625e-05 6.194e-08 d yr n .1837218007468242 2.1214e-09 deg/d Q 3.287448801102605 2.5306e-08 au   Orbit Determination Parameters    # obs. used (total)      450      data-arc span      10396 days (28.46 yr)      first obs. used      1992-03-03      last obs. used      2020-08-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57327      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:06:11   Additional Information  Earth MOID = 1.83882 au   Jupiter MOID = 1.94236 au   T_jup = 3.206  [ hide covariance matrix ] Orbital Elements at Epoch 2456996.5 (2014-Dec-05.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07066014971466418 4.3282e-08   q 2.845019406418796 1.426e-07 au tp 2457293.670951336425 (2015-Sep-28.17095134) 0.00024366 TDB node 177.5265144453859 2.7853e-05 deg peri 127.8747741366761 5.3953e-05 deg i 9.851163917386987 5.9059e-06 deg   Orbit Determination Parameters    # obs. used (total)      450      data-arc span      10396 days (28.46 yr)      first obs. used      1992-03-03      last obs. used      2020-08-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57327      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:06:11   Additional Information  Jupiter MOID = 1.94236 au   T_jup = 3.206  Orbit Covariance (6×6)   e q tp node peri i e 1.873361586058527E-15 -6.110069362493592E-15 1.909439970282719E-12 -8.064457953347446E-15 4.121323342553154E-13 -4.172584661378928E-15 q -6.110069362493592E-15 2.03351333520935E-14 -6.178145734547756E-12 2.674933978421487E-14 -1.349440523669301E-12 1.596558779439397E-14 tp 1.909439970282719E-12 -6.178145734547756E-12 5.937202559290802E-8 -1.47071171658754E-11 1.128062511707147E-8 2.180606258572781E-11 node -8.064457953347446E-15 2.674933978421487E-14 -1.47071171658754E-11 7.757739193213597E-10 -7.669691020323474E-10 4.059093058424933E-11 peri 4.121323342553154E-13 -1.349440523669301E-12 1.128062511707147E-8 -7.669691020323474E-10 2.910907121879664E-9 -3.599850497912346E-11 i -4.172584661378928E-15 1.596558779439397E-14 2.180606258572781E-11 4.059093058424933E-11 -3.599850497912346E-11 3.488007139948296E-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 15.25   n/a E2021B55   120385 (2005 QB36)          Discovered 2005-Aug-25 by NEAT at Palomar Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2005 QB36 = 1998 HX149  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 18:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin