+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   442810 (2013 AH41) Classification: Main-belt Asteroid          SPK-ID: 2442810 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1869406077617723 7.1346e-08   a 2.470420720141187 2.8043e-08 au q 2.008598769290718 1.7433e-07 au i 2.372833757134186 9.7058e-06 deg node 115.5996132532283 0.00017075 deg peri 259.8119852001066 0.00017307 deg M 48.06975287017148 2.443e-05 deg tp 2458811.124323467447 (2019-Nov-23.62432347) 9.6907e-05 TDB period 1418.25658508895 3.88 2.4149e-05 6.612e-08 d yr n .2538327717176942 4.3221e-09 deg/d Q 2.932242670991656 3.3286e-08 au   Orbit Determination Parameters    # obs. used (total)      118      data-arc span      3930 days (10.76 yr)      first obs. used      2008-12-29      last obs. used      2019-10-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57996      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 16:02:02   Additional Information  Earth MOID = 1.01134 au   Jupiter MOID = 2.53134 au   T_jup = 3.459  [ hide covariance matrix ] Orbital Elements at Epoch 2457394.5 (2016-Jan-07.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1885023340164296 7.2317e-08   q 2.004250200608955 1.7715e-07 au tp 2457390.660484121268 (2016-Jan-03.16048412) 0.0001023 TDB node 115.6860515178966 0.00017118 deg peri 259.2522103307048 0.0001734 deg i 2.371937079026869 9.703e-06 deg   Orbit Determination Parameters    # obs. used (total)      118      data-arc span      3930 days (10.76 yr)      first obs. used      2008-12-29      last obs. used      2019-10-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57996      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 16:02:02   Additional Information  Jupiter MOID = 2.53134 au   T_jup = 3.459  Orbit Covariance (6×6)   e q tp node peri i e 5.229706200062205E-15 -1.270868011686315E-14 -4.841196534973874E-12 5.911280731508244E-15 -1.319792855761464E-12 -8.035079819611284E-15 q -1.270868011686315E-14 3.138265775336669E-14 1.100729801398817E-11 -1.088849490678236E-14 3.002987571295776E-12 1.976782385081654E-14 tp -4.841196534973874E-12 1.100729801398817E-11 1.046499786634981E-8 1.346436827455773E-11 2.882419920919403E-9 1.224071379429908E-11 node 5.911280731508244E-15 -1.088849490678236E-14 1.346436827455773E-11 2.930137272030074E-8 -2.927153342029798E-8 9.615667518468888E-10 peri -1.319792855761464E-12 3.002987571295776E-12 2.882419920919403E-9 -2.927153342029798E-8 3.006628550355728E-8 -9.573978528750482E-10 i -8.035079819611284E-15 1.976782385081654E-14 1.224071379429908E-11 9.615667518468888E-10 -9.573978528750482E-10 9.414864191061937E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.7   n/a MPO495194   442810 (2013 AH41)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-09-02 Alternate Designations  2013 AH41 = 2008 YR93  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-12 20:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin