+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78920 (2003 SM108) Classification: Main-belt Asteroid          SPK-ID: 2078920 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1269323359624781 4.3068e-08   a 2.265036075136347 6.7612e-09 au q 1.977529755080008 9.8374e-08 au i 6.071987443647521 4.3899e-06 deg node 215.0882027961258 3.3384e-05 deg peri 171.045978768838 3.5886e-05 deg M 312.104489529489 1.3079e-05 deg tp 2459166.154568486343 (2020-Nov-12.65456849) 4.5385e-05 TDB period 1245.119721436122 3.41 5.5751e-06 1.526e-08 d yr n .2891288233590708 1.2946e-09 deg/d Q 2.552542395192687 7.6195e-09 au   Orbit Determination Parameters    # obs. used (total)      825      data-arc span      8784 days (24.05 yr)      first obs. used      1996-10-18      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50804      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:13:09   Additional Information  Earth MOID = .982124 au   Jupiter MOID = 2.8816 au   T_jup = 3.599  [ hide covariance matrix ] Orbital Elements at Epoch 2456934.5 (2014-Oct-04.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1272578107936398 4.3058e-08   q 1.977172500490449 9.8357e-08 au tp 2456676.445788962980 (2014-Jan-18.94578896) 4.4238e-05 TDB node 215.1933038328915 3.3376e-05 deg peri 171.138307890879 3.5861e-05 deg i 6.072222708549931 4.3898e-06 deg   Orbit Determination Parameters    # obs. used (total)      825      data-arc span      8784 days (24.05 yr)      first obs. used      1996-10-18      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50804      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:13:09   Additional Information  Jupiter MOID = 2.8816 au   T_jup = 3.599  Orbit Covariance (6×6)   e q tp node peri i e 1.854032254399668E-15 -4.227686095095282E-15 -5.796241415378708E-13 -1.144140905677205E-14 -1.330962773281356E-13 -4.918270452824386E-15 q -4.227686095095282E-15 9.674178384592351E-15 1.300160476856131E-12 2.622968894464637E-14 2.989620273591027E-13 1.120225816640201E-14 tp -5.796241415378708E-13 1.300160476856131E-12 1.956994644895721E-9 6.224640104928774E-12 5.893452557514097E-10 3.587038640829795E-12 node -1.144140905677205E-14 2.622968894464637E-14 6.224640104928774E-12 1.113984144828743E-9 -1.105653474160983E-9 -5.69377139327469E-11 peri -1.330962773281356E-13 2.989620273591027E-13 5.893452557514097E-10 -1.105653474160983E-9 1.286037695773078E-9 5.7677242093698E-11 i -4.918270452824386E-15 1.120225816640201E-14 3.587038640829795E-12 -5.69377139327469E-11 5.7677242093698E-11 1.927026324330538E-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 16.3   n/a MPO432338   78920 (2003 SM108)          Discovered 2003-Sep-20 by NEAT at Palomar Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2003 SM108 = 1998 FM4 = 2019 FY14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 15:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin