+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312245 (2007 YM48) Classification: Main-belt Asteroid          SPK-ID: 2312245 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1874148375726206 4.1513e-08   a 2.439391918357686 1.83e-08 au q 1.982213678202717 1.0726e-07 au i 2.279026436393632 7.8971e-06 deg node 111.8110717127292 0.00014142 deg peri 288.4843711842751 0.0001438 deg M 177.6352636405622 2.7471e-05 deg tp 2458513.830935801223 (2019-Jan-30.33093580) 0.00010206 TDB period 1391.620436422808 3.81 1.566e-05 4.287e-08 d yr n .2586912282816053 2.9111e-09 deg/d Q 2.896570158512655 2.173e-08 au   Orbit Determination Parameters    # obs. used (total)      169      data-arc span      6945 days (19.01 yr)      first obs. used      2001-03-20      last obs. used      2020-03-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59543      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:48:04   Additional Information  Earth MOID = .990729 au   Jupiter MOID = 2.51495 au   T_jup = 3.477  [ hide covariance matrix ] Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1855243844690964 4.1481e-08   q 1.987754346213824 1.071e-07 au tp 2457119.651512936695 (2015-Apr-07.15151294) 9.705e-05 TDB node 111.8715792966092 0.00014148 deg peri 288.2025022778363 0.00014394 deg i 2.279090582130701 7.8999e-06 deg   Orbit Determination Parameters    # obs. used (total)      169      data-arc span      6945 days (19.01 yr)      first obs. used      2001-03-20      last obs. used      2020-03-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59543      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:48:04   Additional Information  Jupiter MOID = 2.51495 au   T_jup = 3.477  Orbit Covariance (6×6)   e q tp node peri i e 1.720690499673733E-15 -4.404406568356139E-15 -1.864724807454402E-12 -1.123922543090603E-14 -5.34208283104753E-13 -1.813699472793366E-15 q -4.404406568356139E-15 1.147084061264915E-14 5.099835794408036E-12 3.368834188648249E-14 1.455900567023632E-12 5.286032943003679E-15 tp -1.864724807454402E-12 5.099835794408036E-12 9.418699740503613E-9 3.932667674095602E-11 2.600652209705966E-9 6.466862215488904E-12 node -1.123922543090603E-14 3.368834188648249E-14 3.932667674095602E-11 2.001779482073269E-8 -1.999046134861191E-8 6.481070975535609E-10 peri -5.34208283104753E-13 1.455900567023632E-12 2.600652209705966E-9 -1.999046134861191E-8 2.071797841796565E-8 -6.457794658527319E-10 i -1.813699472793366E-15 5.286032943003679E-15 6.466862215488904E-12 6.481070975535609E-10 -6.457794658527319E-10 6.240808146208813E-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 17.90   n/a E2021B25   312245 (2007 YM48)          Discovered 2007-Dec-28 by Spacewatch at Kitt Peak Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 06:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin