+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312426 (2008 GL91) Classification: Main-belt Asteroid          SPK-ID: 2312426 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09931405864744651 6.0853e-08   a 3.082923345068656 3.0163e-08 au q 2.776745715170926 1.9151e-07 au i 9.918764019033222 5.2643e-06 deg node 195.1498505313286 3.176e-05 deg peri 122.4535915243408 4.7361e-05 deg M 346.0249705005631 2.9979e-05 deg tp 2459077.252538648495 (2020-Aug-15.75253865) 0.00016433 TDB period 1977.163190572981 5.41 2.9017e-05 7.944e-08 d yr n .1820790523091178 2.6722e-09 deg/d Q 3.389100974966387 3.3159e-08 au   Orbit Determination Parameters    # obs. used (total)      216      data-arc span      7647 days (20.94 yr)      first obs. used      1999-11-09      last obs. used      2020-10-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61746      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:47:30   Additional Information  Earth MOID = 1.7802 au   Jupiter MOID = 1.95336 au   T_jup = 3.197  [ hide covariance matrix ] Orbital Elements at Epoch 2457871.5 (2017-Apr-28.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09969062077691744 6.1173e-08   q 2.772044337873623 1.9278e-07 au tp 2457110.026139674356 (2015-Mar-28.52613967) 0.00017358 TDB node 195.2783265016578 3.1719e-05 deg peri 123.6473606612106 4.7086e-05 deg i 9.929381608618842 5.2666e-06 deg   Orbit Determination Parameters    # obs. used (total)      216      data-arc span      7647 days (20.94 yr)      first obs. used      1999-11-09      last obs. used      2020-10-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61746      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:47:30   Additional Information  Jupiter MOID = 1.95336 au   T_jup = 3.197  Orbit Covariance (6×6)   e q tp node peri i e 3.742121883397666E-15 -1.167603898418944E-14 3.949683291021732E-12 -1.12445983419474E-14 8.793744901779408E-13 -1.031052156582121E-14 q -1.167603898418944E-14 3.716241014612445E-14 -1.432487668885029E-11 3.845258738522691E-14 -3.086867736873954E-12 3.205409872405491E-14 tp 3.949683291021732E-12 -1.432487668885029E-11 3.01314658469622E-8 -6.129134932821064E-11 6.066636425484276E-9 2.273720750240281E-13 node -1.12445983419474E-14 3.845258738522691E-14 -6.129134932821064E-11 1.00612083752928E-9 -1.00287178589644E-9 -5.056515473395726E-11 peri 8.793744901779408E-13 -3.086867736873954E-12 6.066636425484276E-9 -1.00287178589644E-9 2.21709355837927E-9 4.969501274583576E-11 i -1.031052156582121E-14 3.205409872405491E-14 2.273720750240281E-13 -5.056515473395726E-11 4.969501274583576E-11 2.773749839742813E-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 16.1   n/a MPO437379   312426 (2008 GL91)          Discovered 2008-Apr-06 by Mt. Lemmon Survey at Mount Lemmon Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] Alternate Designations  2008 GL91 = 1999 VC127 = 2004 TT18  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 21:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin