+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   390944 (2005 JQ48) Classification: Main-belt Asteroid          SPK-ID: 2390944 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07740127629287054 1.3316e-07   a 2.862885132140452 4.8604e-08 au q 2.641294169032898 3.6598e-07 au i 6.350166225691758 1.5506e-05 deg node 171.80503024377 7.8056e-05 deg peri 159.8438253211914 0.00012296 deg M 312.821176856948 0.00010226 deg tp 2459232.372323628816 (2021-Jan-17.87232363) 0.00050635 TDB period 1769.311545844843 4.84 4.5057e-05 1.234e-07 d yr n .2034689712195942 5.1815e-09 deg/d Q 3.084476095248007 5.2366e-08 au   Orbit Determination Parameters    # obs. used (total)      95      data-arc span      5104 days (13.97 yr)      first obs. used      2005-05-03      last obs. used      2019-04-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .65659      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 03:55:36   Additional Information  Earth MOID = 1.63206 au   Jupiter MOID = 2.21179 au   T_jup = 3.288  [ hide covariance matrix ] Orbital Elements at Epoch 2457363.5 (2015-Dec-07.0) TDB Reference: JPL 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07706379037106412 1.352e-07   q 2.640283958499203 3.708e-07 au tp 2457472.105905769294 (2016-Mar-24.60590577) 0.00047111 TDB node 171.8759050984588 7.8053e-05 deg peri 161.2425917323743 0.00012184 deg i 6.351194779589671 1.5514e-05 deg   Orbit Determination Parameters    # obs. used (total)      95      data-arc span      5104 days (13.97 yr)      first obs. used      2005-05-03      last obs. used      2019-04-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .65659      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 03:55:36   Additional Information  Jupiter MOID = 2.21179 au   T_jup = 3.288  Orbit Covariance (6×6)   e q tp node peri i e 1.827955869306485E-14 -4.982413431839745E-14 4.78659431951365E-11 4.128154795338011E-14 9.509414323246577E-12 2.635489886036087E-14 q -4.982413431839745E-14 1.374940460604719E-13 -1.246689232783389E-10 -1.041473081820629E-13 -2.479862556601821E-11 -6.514095628507822E-14 tp 4.78659431951365E-11 -1.246689232783389E-10 2.219471131810197E-7 4.58347994237606E-11 4.416516989988589E-8 7.452888557007058E-11 node 4.128154795338011E-14 -1.041473081820629E-13 4.58347994237606E-11 6.092348749900876E-9 -6.043399884516453E-9 6.211402616264819E-10 peri 9.509414323246577E-12 -2.479862556601821E-11 4.416516989988589E-8 -6.043399884516453E-9 1.484432129230721E-8 -6.019454947409448E-10 i 2.635489886036087E-14 -6.514095628507822E-14 7.452888557007058E-11 6.211402616264819E-10 -6.019454947409448E-10 2.406910064010589E-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.8   n/a MPO434442   390944 (2005 JQ48)          Discovered 2005-May-03 by Spacewatch at Kitt Peak Reference: Last Updated: 2014-04-17 Alternate Designations  2005 JQ48 = 2009 EC10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 08:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin