+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   266447 (2007 HU94) Classification: Main-belt Asteroid          SPK-ID: 2266447 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2009757673699817 5.8532e-08   a 2.69683162907997 2.172e-08 au q 2.154833822957985 1.6126e-07 au i 6.607186527534257 6.5192e-06 deg node 53.1046793460002 4.8842e-05 deg peri 168.1105927623594 5.1494e-05 deg M 330.7330035246396 1.4023e-05 deg tp 2459132.008804855803 (2020-Oct-09.50880486) 6.3459e-05 TDB period 1617.629939852106 4.43 1.9542e-05 5.35e-08 d yr n .2225478096881129 2.6885e-09 deg/d Q 3.238829435201955 2.6085e-08 au   Orbit Determination Parameters    # obs. used (total)      281      data-arc span      8113 days (22.21 yr)      first obs. used      1998-03-25      last obs. used      2020-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55749      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:25:27   Additional Information  Earth MOID = 1.14694 au   Jupiter MOID = 1.73849 au   T_jup = 3.331  [ hide covariance matrix ] Orbital Elements at Epoch 2457389.5 (2016-Jan-02.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2016292719581726 5.8482e-08   q 2.153647290986558 1.6127e-07 au tp 2457512.627338610913 (2016-May-04.12733861) 6.033e-05 TDB node 53.12288917131816 4.8844e-05 deg peri 167.8218616512039 5.1478e-05 deg i 6.607323424711902 6.5191e-06 deg   Orbit Determination Parameters    # obs. used (total)      281      data-arc span      8113 days (22.21 yr)      first obs. used      1998-03-25      last obs. used      2020-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55749      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:25:27   Additional Information  Jupiter MOID = 1.73849 au   T_jup = 3.331  Orbit Covariance (6×6)   e q tp node peri i e 3.420150480040936E-15 -9.378302804501535E-15 -3.653037539719285E-13 -2.707172201351403E-14 -1.019503002669559E-14 -1.994994689947207E-15 q -9.378302804501535E-15 2.600884544974303E-14 9.820332562850284E-13 7.425891548830748E-14 1.319652336750737E-14 5.79931782384948E-15 tp -3.653037539719285E-13 9.820332562850284E-13 3.639651516849008E-9 -6.517816461864485E-12 1.004359088904447E-9 3.273295852275683E-12 node -2.707172201351403E-14 7.425891548830748E-14 -6.517816461864485E-12 2.385761899559849E-9 -2.371508842733169E-9 -8.628794232539301E-11 peri -1.019503002669559E-14 1.319652336750737E-14 1.004359088904447E-9 -2.371508842733169E-9 2.650000757038346E-9 8.662151405054527E-11 i -1.994994689947207E-15 5.79931782384948E-15 3.273295852275683E-12 -8.628794232539301E-11 8.662151405054527E-11 4.249925575396044E-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 16.59   n/a E2021B55   266447 (2007 HU94)          Discovered 2007-Apr-26 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110218/Numbers.arc Last Updated: 2011-02-22 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 18:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin